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Development of processing maps for as-cast ZE41A magnesium alloy 被引量:4
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作者 S. ANBU SELVAN S. rAMANATHAN +1 位作者 r . karthikeyan B. K. rAGHUNATH 《中国有色金属学会会刊:英文版》 EI CSCD 2010年第1期22-27,共6页
The hot deformation behavior of as-cast ZE41A magnesium alloy was studied by employing both processing maps and microstructural observations. To obtain processing map, hot compression tests were performed over a range... The hot deformation behavior of as-cast ZE41A magnesium alloy was studied by employing both processing maps and microstructural observations. To obtain processing map, hot compression tests were performed over a range of strain rates (0.001-1.0 s-1) and temperatures (250-450 ℃). Power dissipation efficiency (η) and instability parameter [ξ (ε)] were evaluated and processing maps were developed for the strain of 0.5. The dynamic recrystallization (DRX) and instable zones were identified and validated through micrographs. The processing maps can be used to select optimum strain rates and temperatures for effective hot working of the material. 展开更多
关键词 加工图 镁合金 热加工温度 热变形行为 热压缩试验 动态再结晶 应变率 微观结构
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