刘吉梓 - 南京理工大学 - 材料科学与工程学院

个人简介

教育背景 2007.9-2014.10 湖南大学材料科学与工程专业博士 2009.1-1009.12 澳大利亚Queensland大学电镜中心联合培养博士研究生， 2005.9-2007.9 湖南大学材料科学与工程学院粉末冶金专业硕士研究生 2001.9-2005.9 湖南大学材料科学与工程学院材料成型及控制工程专业本科工作履历 2015.3-至今南京理工大学格莱特纳米科技研究所讲师 2012.4-2015.2 湖南大学材料科学与工程学院助理研究员

研究领域

目前主要从事高性能轻质合金、先进电子显微学技术及其在材料科学中的应用、材料微结构及缺陷表征、体心立方金属的形变机理研究。高性能轻质合金（铝合金、镁合金、钛合金）广泛应用于航空航天、高速列车、高级轿车等先进交通领域，本人作为项目的课题负责人广泛参与了中车（原南车）集团的高速列车车身用铝合金国产化研究，为铝合金国产化研究提供了三十余份研究报告。先进电子显微学技术的发展近年来在国内外处于朝阳时期，原子成像技术、原位电镜技术为科学研究走进亚埃空间、实时重现反应过程创造了条件，许多传统的科学问题在这些技术的帮助下，获得了革命性的新认识、新知识。材料的各种性能与微结构之间一定存在着某种本征关系，如析出相与合金的强度、缺陷与单质金属的塑韧性、元素的聚集状态与高温合金及高熵合金的蠕变性能、点缺陷与薄膜材料及纳米材料的各种光、电、磁性能，等。因此，微结构及缺陷的表征显得尤为重要。体心立方金属具有很高的硬度和强度，难以发生形变，其形变机制相对常见的面心立方及密排六方金属更加复杂，难以理解，我们希望通过原位透射电镜技术加深人们对这类材料形变机制的认识。欢迎有志青年加入我们的研究，我们的研究用一句话概括为：以先进的电子显微学技术为研究手段，以高性能轻质合金、BCC单质金属、复杂金属体系为研究载体，以微结构和缺陷表征为主要研究内容，结合其他研究手段，实现无间隙多尺度表征，从而达到微观机理解释宏观性能的终极目的。

近期论文

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[1] J.Z. Liu, J.H. Chen*, X.B. Yang, S. Ren, C.L. Wu, H.Y. Xu, J. Zou, Revisiting the precipitation sequence in Al-Zn-Mg-based alloys by high-resolution transmission electron microscopy, ScriptaMaterialia 63(11), 1061-1064, 2010. [2] J.Z. Liu, J.H. Chen*, D.W. Yuan, C.L. Wu, T. Hu, J. Zhu, Z.Y. Cheng, Fine precipitation scenarios of AlZnMg(Cu) alloys revealed by advanced atomic-resolution electron microscopy study Part I: Structure determination of the precipitates in AlZnMg(Cu) alloys, Materials Characterization99, 277-286, 2015. [3] J.Z. Liu, J.H. Chen*, D.W. Yuan, C.L. Wu, T. Hu, J. Zhu, Z.Y. Cheng, Fine precipitation scenarios of AlZnMg(Cu) alloys revealed by advanced atomic-resolution electron microscopy study Part II: Fine precipitation scenarios in AlZnMg(Cu) alloys, Materials Characterization 99, 142-149, 2015. [4] J.Z. liu*, S.S. Yang, S.B. Wang, J.H. Chen, C.L. Wu, The influence of Cu/Mg atomic ratios on precipitation scenarios and mechanical properties of Al-Cu-Mg alloys, Journal of Alloys and Compounds 613, 139-142, 2014. [5] 陈江华，刘吉梓，石慧, 多片层方法计算高阶劳厄衍射效应的收敛性研究, 电子显微学报 26, 462-472, 2007. [6] T. Hu, J.H. Chen*, J.Z. Liu, Z.R. Liu, C.L. Wu*, The crystallographic and morphologic evolution of the strengthening precipitates in Cu-Ni-Si alloys, ActaMaterialia 61, 1210-1219, 2013. [7] Z. Gao, J.Z. Liu*, J.H. Chen, S.Y. Duan, Z.R. Liu, W.Q. Ming, C.L. Wu, Formation mechanism of precipitate T1in AlCuLi alloys, Journal of Alloys and Compounds624, 22-26, 2015. [8] Xiubo Yang, Jizi Liu*, Jianghua Chen, Caiyun Wan, Lei Fang, Ping Liu, Cuilan Wu, Relationship between the strengthening effect and the morphology of precipitates in Al-7.4Zn-1.7Mg-2.0Cu (wt. %) alloy, ActaMetallurgicaSinica (English Letters)27(6), 1070-1077, 2014. [9] X.B. Yang, J.H. Chen, J.Z. Liu*, F. Qin, J. Xie, C.L. Wu, A high-strength AlZnMg alloy hardened by the T-phase precipitates, Journal of Alloys and Compounds 610, 69-73, 2014. [10] X.B. Yang, J.H. Chen, J.Z. Liu*, P. Liu, F. Qin, Y.L. Cheng, C.L. Wu, Spherical constituent particles formed by a multistage solution treatment in Al-Zn-Mg-Cu alloys, Materials Characterization 83, 79-88, 2013. [11] S.B. Wang, J.H. Chen*, M.J. Yin, Z.R. Liu, D.W. Yuan, J.Z. Liu, C.H. Liu, C.L. Wu*, Double-atomic-wall-based dynamic precipitates of the early-stage S-phase in AlCuMg alloys, ActaMaterialia 60, 6573-6580, 2012. [12] S.Q. Zhu, H.G. Yan*, J.H. Chen, Y.Z. Wu, J.Z. Liu, J. Tian, Effect of twinning and dynamic recrystallization on the high strain rate rolling process, ScriptaMaterialia 63(10): 985-988, 2010. [13] Su-Qin Zhu, Hong-Ge Yan*, Wei-Jun Xia, Ji-Zi Liu, Jun-Feng Jiang, Influence of different deformation processing on the AZ31 magnesium alloy sheets, Journal of Materials Science 44: 3800-3806, 2009. [14] Zhi-Gang Chen, Lina Cheng, Hong-Yi Xu, Ji-Zi Liu, Jin Zou*, Takashi Sekiguchi, Gao Qing (Max) Lu* and Hui-Ming Cheng*, ZnS Branched Architectures as Optoelectronic Devices and Field Emitters. Advanced Materials 22(21): 2376-2380, 2010. [15] Lu-Tang Fu, Zhi-Gang Chen, Da-Wei Wang, Lina Cheng, Hong-Yi Xu, Ji-Zi Liu,Hong-Tao Cong*, Gao Qing (Max) Lu and Jin Zou*, Wurtzite P-Doped GaN Triangular Microtubes as Field Emitters, Journal of Physical Chemistry C 114: 9627-9633, 2010. [16] Pei Yuan, Junliang Sun, Hongyi Xu, Liang Zhou, Jizi Liu, DaLiang Zhang, Yunhua Wang, Kevin S. Jack, John Drennan, Dongyuan Zhao, Gaoqing Lu, Xiaodong Zou*, Jin Zou* and Chengzhong Yu*, Extensive Inspection of an Unconventional Mesoporous Silica Material at All Length-Scales, Chemistry of Materials 23: 229-238, 2011. [17] Chen ZhenHua; Zhang LiKe; Liu JiZi; Chen Ding*, Cryogenic treatment induced hardening for Cu-Zr-Ag-Al bulk metallic glasses, SCIENCE CHINA-TECHNOLOGICAL SCIENCES 56(3): 637-641, 2013.