W10Re alloy is preferred for computed tomography anodes with high molar heat capacity. The deformed W10Re alloy will undergo recrystallization and grain growth during service, resulting in reduced mechanical properties, thermal shock resistance, and service life. The aim of this work is to study the microstructure of the warm-rolled W10Re alloy, its evolution of microstructure and mechanical properties after annealing at 1500 °C. During annealing at 1500 °C, recrystallization and growth of the deformed grain occurred with a latent period. The characteristics of deformed grains in the as-rolled alloy and the variation of kernel average misorientation (KAM) and geometrically necessary dislocations (GND) densities during recrystallization are discussed in detail. In high-temperature annealing, lower stored energy can allow the recrystallization behavior to have a latent period, and the residual deformation of the grain can be retained for a long time. In elevated temperatures, the deterioration of the mechanical properties of the alloy is initially evidenced by a notable decline in strength. This is subsequently followed by the loss of plasticity, which occurs as a result of the further degradation of the structure.

中文翻译：

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温轧 W[sbnd]10Re 合金在 1500 °C 退火过程中微观组织和力学性能的演变


W10Re 合金是具有高摩尔热容的计算机断层扫描阳极的首选。变形的 W10Re 合金在使用过程中会发生再结晶和晶粒生长，导致机械性能、抗热震性和使用寿命降低。本工作的目的是研究温轧 W10Re 合金的微观组织、其在 1500 °C 退火后微观组织和力学性能的演变。 在 1500 °C 退火过程中，变形晶粒的再结晶和生长具有潜伏期。详细讨论了轧制合金中变形晶粒的特性以及再结晶过程中晶粒平均取向差 （KAM） 和几何必要位错 （GND） 密度的变化。在高温退火中，较低的存储能量可以使再结晶行为具有潜伏期，并且可以长时间保留晶粒的残余变形。在高温下，合金机械性能的恶化最初表现为强度的显着下降。随后是可塑性的丧失，这是由于结构的进一步退化而发生的。