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Effect of Ni4Ti3 precipitates on the functional properties of NiTi shape memory alloys: A phase field study Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-06 Bo Xu, Yuanzun Sun, Chao Yu, Jiachen Hu, Jiaming Zhu, Junyuan Xiong, Qianhua Kan, Chong Wang, Qingyuan Wang, Guozheng Kang
NiTi precipitates, which generally exist in aged Ni-rich NiTi shape memory alloys (SMAs), can have a profound effect on material properties. However, the fundamental insights into the effects of NiTi precipitates on the functional properties, including the superelasticity (SE), elastocaloric effect (eCE), and shape memory effects (SMEs), are not well understood yet, especially those originating from
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Spatially-resolved cluster dynamics modeling of irradiation growth Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-06 Matthew Maron, Yang Li, Inam Lalani, Kristopher Baker, Benjamin Ramirez Flores, Thomas Black, James Hollenbeck, Nasr Ghoniem, Giacomo Po
We develop here a spatially resolved, three-dimensional continuum model coupling cluster dynamics (SR-CD) and crystal plasticity to investigate irradiation growth in zirconium. The model uses scale separation to divide the population of the irradiation cluster into mobile and immobile families. Small interstitial and vacancy clusters are modeled using anisotropic reaction–diffusion equations. Among
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Orientation-dependent deformation mechanisms of alpha-uranium single crystals under shock compression Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-04 Yongfeng Huang, Pan Li, Songlin Yao, Kun Wang, Wangyu Hu
Large-scale non-equilibrium molecular dynamics (NEMD) simulations were employed to investigate the dynamic deformations of alpha-uranium (α-U) single crystals subjected to varying shock strengths along low-index crystallographic orientations. The pronounced anisotropy of α-U gives rise to a complex microstructural evolution under shock loading. In-depth microstructural analysis of post-shock specimens
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Synergistic grain boundary engineering for achieving strength-ductility balance in ultrafine-grained high-Cr-bearing multicomponent alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-03 Xiaoming Liu, Kaikai Song, Zongde Kou, Jianhong Gong, Xiangyan Chen, Qingwei Gao, Hui Sun, Pingping Liu, Ruitao Qu, Lina Hu, Zequn Zhang, Parthiban Ramasamy, Zengqian Liu, Zhenjun Zhang, Feng Liu, Zhefeng Zhang, Jürgen Eckert
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Atomistic to continuum mechanics description of crystal defects with dislocation density fields: Application to dislocations and grain boundaries Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-03 Houssam Kharouji, Lucile Dezerald, Pierre Hirel, Philippe Carrez, Patrick Cordier, Vincent Taupin, Julien Guénolé
The atomic structure of crystal defects such as dislocations, grain or phase boundaries, control these defects’ properties: their mobility, ability to cross-slip, or solute segregation. These crystal defects can be conveniently studied by atomistic simulations and one then needs to transfer relevant information at the upper scale to model microstructures containing a large number of defects, e.g.,
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Atomistic investigation of deformation behavior of lamellar pearlite with inclined orientation Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-01 Manjiang Yu, Fangli Duan
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Strengthening complex concentrated alloy without ductility loss by 3D printed high-density coherent nanoparticles Int. J. Plasticity (IF 9.8) Pub Date : 2024-05-01 Gang Qin, Qian Yu, Kaiping Yu, Yan Fang, Ruirun Chen, Zhiyuan Liang, Mingxin Huang
Metallic 3D printing enables fast fabrication of net-shaped components for broad engineering applications, yet it restrains the use of most mechanical processing methods for strengthening alloys, e.g. forging, rolling, etc. Here, we proposed a new strategy for enhancing the strength of 3D printed complex concentrated alloys without losing ductility. This strategy relies on the rapid cooling of 3D printing
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Micro-mechanisms of anisotropic deformation in the presence of notch in commercially pure Titanium: An in-situ study with CPFEM simulations Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-30 Vivek Kumar Sahu, Pritam Chakraborty, Manasij Yadava, Nilesh P. Gurao
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Crack initiation mechanisms of micro-textured Ti60 alloys with different dwell sensitivities subjected to fatigue and dwell fatigue loading Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-28 Boning Wang, Weidong Zeng, Zibo Zhao, Runchen Jia, Jianwei Xu, Qingjiang Wang
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Symmetry breaking induced asymmetric dislocation-planar fault interactions in ordered intermetallic alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-27 Cheng Chen, Fei Xu, Jun Song
In this study, we present the first comprehensive examination of symmetry breaking in the interactions between dislocation and superlattice planar faults, including anti-phase boundary (APB), complex stacking fault (CSF), superlattice intrinsic stacking fault (SISF), to reveal the underlying asymmetric dislocation reaction mechanisms depending on the sense of applied stress, employing both large-scale
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Study of the mechanism of the strength-ductility synergy of α-Ti at cryogenic temperature via experiment and atomistic simulation Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-25 Heng Yang, Heng Li, Hong Sun, Haipeng Wang, M.W. Fu
Alpha titanium (α-Ti) is a promising material for making high-performance components for applications in aerospace, marine, energy and healthcare fields. The excellent strength-ductility synergy has been observed for α-Ti at cryogenic temperature. Twinning is generally considered a key mechanism of outstanding cryogenic ductility. The dislocation-grain boundaries (GBs) interaction and void nucleation
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Understanding the strain localization in additively manufactured materials: Micro-scale tensile tests and crystal plasticity modeling Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-25 Daijun Hu, Zixu Guo, Nicolò Grilli, Aloysius Tay, Zhen Lu, Wentao Yan
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Tuning chemical short-range order for simultaneous strength and toughness enhancement in NiCoCr medium-entropy alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-23 Siyao Shuang, Yanan Hu, Xiaotao Li, Fuping Yuan, Guozheng Kang, Huajian Gao, Xu Zhang
The pursuit of enhancing strength and toughness remains a critical endeavor in the field of structural materials. This study explores two distinct strategies to overcome the traditional strength-toughness trade-off. Specifically, we manipulate the chemical composition and short-range order (SRO) of the NiCoCr medium-entropy alloy, which has shown remarkable fracture toughness in recent experiments
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Temperature-dependent damage of magnesium alloy with ratchetting–fatigue interaction effects: Experiments and mesomechanical theory Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-20 Ziyi Wang, Yu Lei, Binghui Hu, Chao Yu, Shengchuan Wu, Xiqiao Feng, Guozheng Kang
Fatigue failure is a significant concern for magnesium (Mg) alloy components. However, fatigue damage mechanisms of Mg alloys, particularly in the case of ratchetting–fatigue interaction at elevated temperatures, are still not well understood. In this paper, we combine experiments and theoretical analysis to investigate the high-temperature damage mechanisms of the extruded AZ31 Mg alloy, specifically
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Micromechanism of strength and damage trade-off in second-phase reinforced alloy by strain gradient plasticity theory Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-15 Li Li, Jing Peng, Sisi Tang, Qihong Fang, Yueguang Wei
The strength and damage are mutually exclusive in most alloys. It is still a challenge to understand the role of microstructural features in affecting strength and damage tolerance simultaneously. In this study, we provide a general approach to unveil the micromechanism of strength and damage trade-off in second-phase reinforced alloy. Concretely, a microstructure-based constitutive model incorporating
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A stochastic discrete slip approach to microplasticity: Application to submicron W pillars Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-15 Carlos J. Ruestes, Javier Segurado
A stochastic discrete slip approach is proposed to model plastic deformation in submicron domains. The model is applied to the study of submicron pillar () compression experiments on tungsten (W), a prototypical metal for applications under extreme conditions. Slip events are geometrically resolved in the specimen and considered as eigenstrain fields producing a displacement jump across a slip plane
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Extensive phase transformation in an equiatomic CrCoNi medium entropy alloy under extreme uniaxial tension Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-14 Kun Jiang, Jianguo Li, Tao Suo
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Advancement of microstructural evolution and deformation mechanisms in AA6082 aluminum alloy under elevated-temperature tensile loading Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-11 Oleksandr Lypchanskyi, Karol Janus, Daniel Irmer, Anna Wójcik, Grzegorz Korpała, Ulrich Prahl
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Experimental investigation and numerical modelling of the cyclic plasticity and fatigue behavior of additively manufactured 316 L stainless steel Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-11 M. Subasic, A. Ireland, R. Mansour, P. Enblom, P. Krakhmalev, M. Åsberg, A. Fazi, J. Gårdstam, J. Shipley, P. Waernqvist, B. Forssgren, P. Efsing
This study addresses the critical need for a constitutive model to analyze the cyclic plasticity of additively manufactured 316L stainless steel. The anisotropic behavior at both room temperature and 300 °C is investigated experimentally based on cyclic hysteresis loops performed in different orientations with respect to the build direction. A comprehensive constitutive model is proposed, that integrates
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Fatigue life estimation of nickel-based single crystal superalloy with different inclined film cooling holes: Initial damage quantification and coupling of damage-fracture mechanics models Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-10 Fei Li, Zhixun Wen, Lei Luo, Zhufeng Yue, Ziqi Zang, Meng Li, Zhenwei Li, Yanchao Zhao
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A new failure criterion for predicting meso/micro-scale forming limit of composite metal foils Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-10 Lihuang Zheng, Jeong Whan Yoon
In order to design robust and reliable micro forming processes for composite metal foils, it is crucial to accurately forecast their forming limit under various strain paths. To date, however, there are few criteria that can effectively predict the forming limit of composite metal foils influenced by size effect. To solve this problem, a new uncoupled failure criterion is developed in this study, which
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Surface roughness evolution and heterogeneous plastic deformation of austenitic stainless steel during micro deep drawing: Modeling and experiment Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-06 Hang Zhao, Xiaoguang Ma, Zhihua Wang, Zhengyi Jiang, Cunlong Zhou, Jingwei Zhao
The present work involves the numerical simulation and experimental study on the surface roughness evolution and heterogeneous plastic deformation (strain localization and concomitant surface morphology evolution) in grain scale of micro deep drawn parts of austenitic stainless steel (ASS) 304 foils. A three-dimensional modeling framework was used to simulate the micro deep drawing (MDD) process. The
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Discontinuous coarsening leads to unchanged tensile properties in high-entropy alloys with different recrystallization volume fractions Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-03 Zhongsheng Yang, Xin Liu, Jiajun Zhao, Qionghuan Zeng, Kengfeng Xu, Yue Li, Chuanyun Wang, Lei Wang, Junjie Li, Jincheng Wang, Hyoung Seop Kim, Zhijun Wang, Feng He
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STZ-Clay: A shear-transformation-zone theory based constitutive model for clay Int. J. Plasticity (IF 9.8) Pub Date : 2024-04-03 W.L. Li, N. Guo, Z.X. Yang
The shear-transformation-zone (STZ) theory is a mesoscale-based approach that attributes material macroscopic plastic deformation to the flipping, creation, and annihilation of mesoscopic structures known as STZs. In this study, the potential of the STZ theory in soil constitutive modeling is demonstrated through the development of a model coined STZ-Clay, by extending the conventional STZ theory to
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Exceptional ductility through interface-constrained grain growth for the ultrafine-scale Ni/Ni-W layered composites Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-31 Fei Liang, Zhe-Xuan Wang, Mei-Yue Li, Bin Zhang, Xue-Mei Luo, Xiao-Fei Zhu, Guang-Ping Zhang
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High-temperature “Inverse” Hall-Petch relationship and fracture behavior of TA15 alloy Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-28 Shaolong Li, Shufeng Li, Lei Liu, Huiying Liu, Chuanyun Wang, Philip J. Withers, Yuntian Zhu, Lina Gao, Shaodi Wang, Biao Chen, Wangtu Huo, Jianbo Gao, Xin Zhang, Bo Li
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Enhanced grain boundary cohesion mediated by solute segregation in a dilute Mg alloy with improved crack tolerance and strength Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-24 An Yang, Yu-Jing Liu, Cheng Wang, Yipeng Gao, Peng Chen, Hong Ju, Wei-Jiang Guo, Hong Ning, Kai Guan, Hui-Yuan Wang
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A physically-based mixed hardening model for the prediction of the ductility limits of thin metal sheets using a CPFE approach Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-21 S. Zhou, M. Ben Bettaieb, F. Abed-Meraim
An advanced Crystal Plasticity Finite Element (CPFE) approach is developed to accurately predict the ductility limit strains of thin metal sheets. This method uses polycrystalline unit cells to represent the metal sheets at the macroscopic level. The macroscopic behavior of these unit cells is determined based on that of the constituent single crystals using the periodic homogenization multiscale scheme
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A general micromechanics-based model for precipitate strengthening and fracture toughness in polycrystal high entropy alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-19 Yankai Wang, Fusheng Tan, Yang Chen, Hui Feng, Jia Li, Peter K Liaw, Qihong Fang
High-entropy alloys (HEAs) usually exhibit exceptional mechanical properties attributed to one of important core effects for serious lattice strain to impede dislocation motion compared to the traditional alloys. However, their roles on the quantitative measurement for precipitate strengthening and fracture toughness are lack using the existing physical model. Here, we propose a mechanistic modelling
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Dynamic evolution of the T1 phase and its effect on continuous dynamic recrystallization in Al–Cu–Li alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-17 Kuizhao Wang, Cunsheng Zhang, Zinan Cheng, Haibin Zhao, Zijie Meng, Liang Chen, Guoqun Zhao
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Multi-scale damage mechanism of hierarchically structured high-strength martensitic steels under shock loading Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-16 Zhaoguo Zhang, Sen Chen, Yifei Hong, Xuhai Li, Jian Zhang, Yong Xiao, Guoqiang Luo, Yuying Yu, Jianbo Hu
The multi-scale damage behaviors and underlying mechanisms of hierarchically structured high-strength martensitic steels are investigated via plate-impact recovery experiments, postmortem characterizations. Plate-impact experiments were conducted at compressive peak stresses ranging from approximately 5.5 to 11.0 GPa, and the tensile strain rates are ∼10 s . Significant improvement in the spall strength
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Superior strength-ductility synergy of Mg-Nd-Zn-Zr alloy rod achieved by drawing at elevated temperatures Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-16 Baoxue Zhou, Xiang Wang, Jimiao Jiang, Chun Chen, Xiyuan Zhang, Jialin Niu, Jia Pei, Hua Huang, Deli Wang, Guangyin Yuan
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Atomic-scale observation and characterization of deformation twins in uniaxial tensile-deformed 120Mn13 steel Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-16 Zhimin Ding, Linnan Dong, Neng Fu, Jiaoyang Sun, Yongchang Bao
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Deformation mechanisms in the α phase of the Ti-6Al-2Sn-4Zr-2Mo titanium alloy: In situ experiments and simulations Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-15 S. Hémery, A. Naït-Ali, O. Smerdova, C. Tromas
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Analysis of slip transfer across grain boundaries in Ti via diffraction contrast tomography and high-resolution digital image correlation: When the geometrical criteria are not sufficient Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-15 E. Nieto-Valeiras, A. Orozco-Caballero, M. Sarebanzadeh, J. Sun, J. LLorca
High-resolution digital image correlation was employed to analyze the occurrence of slip transfer across grain boundaries in pure Ti. The microstructure was characterized in 3D through diffraction contrast tomography and electron backscatter diffraction. The prismatic slip activity was captured in the shear strain maps at different strains, and the grain boundaries were classified according to the
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Temperature dependent deformation behavior and texture evolution in AA6082 aluminum alloy: An integrated experimental and crystal plasticity simulation approach Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-14 Oleksandr Lypchanskyi, Chen-Chun Chiu, Faisal Qayyum, Grzegorz Korpała, Sergey Guk, Ching-Kong Chao, Ulrich Prahl
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Deformation behavior, twinning propensity model, and twinnability map for laser powder bed fused austenitic steel homogenized by hot isostatic pressing Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-11 Hongzhuang Zhang, Shujie Cao, Bing Li, Filippo Berto, Guian Qian, Changyou Li
Hot isostatic pressing (HIP) has emerged as a highly effective and extensively adopted technique for eliminating intrinsic flaws, mitigating residual stress, and addressing microstructural anisotropy in laser powder bed fused (L-PBF) metallic materials. However, the deformation behavior, strengthening mechanism, and associated mechanistic models of HIPed l-PBF austenitic steel remain largely unclear
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Exceptional strength-ductility synergy at room and liquid nitrogen temperatures of Al7.5Co20.5Fe24Ni24Cr24 high-entropy alloy with hierarchical precipitate heterogeneous structure Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-11 Chenliang Chu, Weiping Chen, Liran Huang, Hao Wang, Ling Chen, Zhiqiang Fu
The study of alloys exhibiting noteworthy strength-ductility synergy at ambient and cryogenic temperatures has been a persistent area of interest in materials engineering. This interest extends to the recent development of high-entropy alloys (HEAs). The current investigation delves into the impact of diverse thermo-mechanical treatments on the phase and microstructure evolution in a face-centered
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Cross-slip of extended dislocations and secondary deformation twinning in a high-Mn TWIP steel Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-09 Shucheng Shen, Pan Xie, Cuilan Wu, Jing Luo, haifeng Ye, Jianghua Chen
Twinning-induced plasticity (TWIP) steels have become important materials in industry owing to the good combination of strength and ductility and high strain hardening rate. The excellent mechanical properties are highly related to the glide of dislocation and deformation twinning. However, the cross-slip behavior of the extended dislocation and the mechanism of deformation twinning are still controversial
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Crack nucleation and dislocation activities in titanium alloys with the strong transverse texture: Insights for enhancing dwell fatigue resistance Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-07 Runchen Jia, Weidong Zeng, Zibo Zhao, Boning Wang, Hanwen Chen, Jianwei Xu, Qingjiang Wang
Cold dwell sensitivity of near α titanium alloys has posed a significant challenge to the engineering safety within the aerospace industry. However, there exists inconsistency regarding the critical facet formation mechanism between basal and prismatic nucleation. A key revelation in this paper is that the controversy surrounding the facet nucleation plane primarily arises from variations in texture:
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Virtual laboratory enabled constitutive modelling of dual phase steels Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-06 Wencheng Liu, Xinghao Li, Ming Liu, Hao Cui, Jia Huang, Yong Pang, Jun Ma
Accurate and efficient characterization and modelling of deformation responses are critically essential in the development of advanced metal forming processes. This work presents a virtual laboratory enabled constitutive framework for modelling complex deformation responses of dual phase (DP) steels under complex stress states, based on multi-phase full-field crystal plasticity (CP) and advanced phenomenological
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Effect of pore on the deformation behaviors of NiTi shape memory alloys: A crystal-plasticity-based phase field modeling Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-05 Bo Xu, Chao Yu, Chong Wang, Qianhua Kan, Qingyuan Wang, Guozheng Kang
Porous NiTi shape memory alloys (SMA) have been developed into important biomedical and damping materials. However, the effect of pore on the martensitic microstructure evolution, functional properties, and plastic deformation has not been fully clear yet. In this work, to reveal the functional properties including superelasticity (SE), elastocaloric effect (eCE), one-way shape memory effect (OWSME)
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Plastic deformation and strengthening mechanism in CoNiV medium-entropy alloy fiber Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-03 Lin Deng, Ruixuan Li, Jinru Luo, Shilei Li, Xuefeng Xie, Shangshu Wu, Weiran Zhang, Peter K. Liaw, Elena A. Korznikova, Yong Zhang
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Multi-interface migration mechanism induced by carbide precipitation during the quenching-partitioning-tempering process in a high-carbon steel Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-02 Hongqing Zheng, Jiazhi Zhang, Xunwei Zuo, Yonghua Rong, Jianfeng Wan, Nailu Chen
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Quantifying dislocation drag at high strain rates with laser-induced Microprojectile impact Int. J. Plasticity (IF 9.8) Pub Date : 2024-03-01 Qi Tang, Mostafa Hassani
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Deciphering non-elastic deformation in amorphous alloy: Simultaneous aging-induced ordering and rejuvenation-induced disordering Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-27 Q. Hao, G.J. Lyu, E. Pineda, J.M. Pelletier, Y.J. Wang, Y. Yang, J.C. Qiao
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Uncovering origin of grain boundary resistance to irradiation damage in NiCoCr multi-principal element alloys Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-27 Fusheng Tan, Jia Li, Bin Liu, Peter K Liaw, Qihong Fang
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Anisotropic ductile fracture of a stainless steel under biaxial loading: Experiments and predictions Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-27 Madhav Baral, Peter W. Ripley, Yanshan Lou, Yannis P. Korkolis
The anisotropic ductile fracture behavior of a stainless steel is investigated using a combination of experiments and analysis. The material is SS-304L, an austenitic, low-carbon stainless steel, received in the form of tubes of 2.38 mm dia. and 0.15 mm thickness. The tubes are inflated under volume control in a custom apparatus. At the same time, the axial force on the tubes is kept proportional to
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Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-23 L.T. Zhang, Y.J. Wang, M. Nabahat, E. Pineda, Y. Yang, J.M. Pelletier, D. Crespo, J.C. Qiao
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Modeling and simulation of dynamic compression of Bulk Metallic Glasses at room and elevated temperatures using split Hopkinson pressure bar setup Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-17 Arun Kamble, Parag Tandaiya
This paper presents a modeling and simulation study of dynamic compression behavior of Bulk Metallic Glasses (BMGs) at room and elevated temperatures using the split Hopkinson pressure bar (SHPB) setup. The primary objective of this study is to develop and validate a constitutive model and simulation methodology capable of predicting the high strain rate response of BMGs at different temperatures.
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A physics-based plasticity study of the mechanism of inhomogeneous strain evolution in dual phase 600 steel Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-16 Mohammad Hasan Joudivand Sarand, I. Burc Misirlioglu
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Gurson-Cohesive modeling (GCM) for 3D ductile fracture simulation Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-16 Jihyuk Park, Soondo Kweon, Kyoungsoo Park
A (GCM) is proposed to investigate 3D ductile fracture accounting for the void growth, coalescence, and complete failure phenomena. The proposed model idealizes the ductile fracture process as continuum damage evolution, cohesive crack initiation, nonlinear softening along the crack surface, and complete failure. The Gurson model is employed to describe continuum damage with void growth, while the
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A forming limit framework accounting for various failure mechanisms: Localization, ductile and cleavage fracture Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-15 Fuhui Shen, Yannik Sparrer, Jing Rao, Markus Könemann, Sebastian Münstermann, Junhe Lian
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Coupling effect of loading mode and temperature on the deformation behaviors of TWIP β Ti alloy: From superior tensile strength-ductility synergy to low Charpy impact toughness Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-15 Q. Wang, B. Sang, J.Q. Ren, C. Xin, Y.H. Zhang, Q. Gao, W.F. Liu, Z.L. Ning, J.T. Yu, X.F. Lu
The Ti-8.5Cr-1.5Sn β Ti alloy with twinning induced plasticity (TWIP) effect was selected for the quasi-static tensile and Charpy impact tests at 298 K and 77 K to determine whether the strengthening and toughening strategy by TWIP effect can be extended to the cryogenic temperature. As the impact deformation temperature decreased from 298 K to 77 K, the Charpy impact toughness decreased obviously
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Short-range ordering mechanics in FCC materials Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-13 Daegun You, Orcun Koray Celebi, Gorkem Gengor, Ahmed Sameer Khan Mohammed, Wael Abuzaid, Huseyin Sehitoglu
Short-range order (SRO) has a crucial impact on the mechanical strength of metallic alloys. Recent atomistic investigations defined an average SRO and attempted to correlate it with the yield strength. We propose that the local change in SRO upon slip advance must dictate the strengthening, and we elaborate the methodology to establish the “SRO change” on a slip plane considering the Wigner-Seitz cell
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Hydride-enhanced strain localization in zirconium alloy: A study by crystal plasticity finite element method Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-11 X.D. Zan, X. Guo, G.J. Weng
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Relating stress/strain heterogeneity to lath martensite strength by experiments and dislocation density-based crystal plasticity Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-10 Tim Fischer, Tao Zhou, Carl F.O. Dahlberg, Peter Hedström
To enhance the fundamental understanding for micromechanical lath martensite deformation, the microstructure as well as macro- and microscopic tensile properties of as-quenched 15–5 PH stainless steel are systematically analysed depending on the austenitisation temperature. Based on electron backscatter diffraction (EBSD) and backscattered electron (BSE) analysis, it is noted that the martensite morphology
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Modeling of creep in nickel-based superalloy based on microtwinning mechanism Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-10 Jingyu Zhang, Ying Liu, Yangyang Cheng, Hao Wang, Aixue Sha, Huiling Duan
Microtwinning is the dominant creep deformation mechanism of nickel-based superalloy in certain temperature and stress conditions. This study proposes a novel temperature-dependent creep constitutive model based on microtwinning mechanism, which includes the glide of 1/6<112> partial dislocations and atomic diffusion in precipitates. Both microtwinning and anti-phase boundary shearing mechanisms are
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Deformation-induced structural multiplicity of tilt boundaries facilitating the formation of two-dimensional interfacial superstructures Int. J. Plasticity (IF 9.8) Pub Date : 2024-02-09 Xiande Ma, Hongbo Xie, Shanshan Li, Weitao Jia, Yuping Ren, Gaowu Qin
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