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Effect of one-step recrystallization on the grain boundary evolution of CoCrFeMnNi high entropy alloy and its subsystems

机译:一步再结晶对CoCrFeMnNi高熵合金及其子系统晶界演化的影响

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摘要

In this study, the grain boundary evolution of equiatomic CoCrFeMnNi, CoCrFeNi, and FeCoNi alloys after one-step recrystallization were investigated. The special boundary fraction and twin density of these alloys were evaluated by electron backscatter diffraction analysis. Among the three alloys tested, FeCoNi exhibited the highest special boundary fraction and twin density after one-step recrystallization. The special boundary increment after one-step recrystallization was mainly affected by grain boundary velocity, while twin density was mainly affected by average grain boundary energy and twin boundary energy.
机译:在这项研究中,研究了一步重结晶后等原子CoCrFeMnNi,CoCrFeNi和FeCoNi合金的晶界演化。通过电子背散射衍射分析评估了这些合金的特殊边界分数和孪生密度。在测试的三种合金中,FeCoNi在一步重结晶后表现出最高的特殊边界分数和孪晶密度。一步再结晶后的特殊边界增量主要受晶界速度的影响,而孪晶密度主要受平均晶界能和孪晶能的影响。

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