Abstract Hot deformation mechanisms and restoration behavior of a single-phase face-centered cubic high entropy alloy was studied. The hot-deformed microstructure consisted of complex shaped deformation/transition bands. For the first time in these alloys, self-screening microband arrays were detected. The microbands were of highly crystallographic nature, i.e., they were aligned with traces of {111} slip planes containing slip systems having the highest or second highest possible Schmid factors. Dynamic recrystallization initiated mainly at the initial grain boundaries through strain-induced boundary migration generally followed by the formation of multiple twinning chains. Also, micro-shear-band induced recrystallization was observed locally, mainly due to strain localization.

中文翻译：

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面心立方Al0.3CoCrFeNi高熵合金的热加工组织

摘要 研究了一种单相面心立方高熵合金的热变形机制和恢复行为。热变形微观结构由形状复杂的变形/过渡带组成。首次在这些合金中检测到自筛选微带阵列。微带具有高度晶体学性质，即，它们与{111}滑移面的痕迹对齐，滑移系统具有最高或第二高的可能施密德因子。动态再结晶主要通过应变诱导的晶界迁移在初始晶界处开始，通常随后形成多个孪晶链。此外，局部观察到微剪切带诱导的再结晶，主要是由于应变局部化。