Microstructure and hot compression behavior of twin-roll-casting AZ41M magnesium alloy
Microstructure and hot compression behavior of twin-roll-casting AZ41M magnesium alloy
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DOI：
10.1007/s12598-010-0137-9
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发表时间：
2010-07
期刊：
影响因子：
8.8
通讯作者：
Shouren Wang;Min Wang;Ru Ma;Y. Wang;Yanjun Wang
中科院分区：
文献类型：
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作者：
Shouren Wang;Min Wang;Ru Ma;Y. Wang;Yanjun Wang
利用Gleeble 1500热模拟试验机研究了AZ 41 M镁合金在双辊铸轧和热压缩条件下的真应力-真应变关系。利用光学显微镜观察并讨论了TRC镁合金在不同变形条件（应变、应变速率和变形温度）下的组织演变。真应力-真应变关系表明，较低的变形温度和较高的应变速率会引起急剧的应变硬化。高温低应变速率下，流变应力曲线趋于稳定。中间温度和应变速率（623 K和0.01 s-1）是合适的。
The relationship of true stress and true strain of AZ41M magnesium alloy under twin-roll-cast (TRC) and hot compression was analyzed using a Gleeble 1500 machine. Microstructural evolutions of the TRC magnesium alloy under different deformation conditions (strain, strain rate and deformation temperature) were examined using optical microscopy and discussed. The relationship of true stress and true strain predicted that lower deformation temperature and higher strain rate caused sharp strain hardening. Meanwhile, the flow stress curve turned into a steady state at high temperature and lower strain rate. The intermediate temperature and strain rate (623 K and 0.01 s−1) is appropriate.