Superplastic deformation behavior of twin-roll cast Mg–6Zn–1Mn–1Al alloy
Superplastic deformation behavior of twin-roll cast Mg–6Zn–1Mn–1Al alloy
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DOI：
10.1016/j.scriptamat.2009.03.057
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发表时间：
2009-07
影响因子：
6
通讯作者：
S. Park;G. Bae;D. Kang;B. You;N. Kim
中科院分区：
文献类型：
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作者：
S. Park;G. Bae;D. Kang;B. You;N. Kim
研究了双辊铸造（TRC） Mg-6Zn-1Mn-1Al （ZMA611）合金的高温变形行为，并与铸锭铸造（IC） Mg-3Al-1Zn （AZ31）合金的高温变形行为进行了比较。在543 ~ 603k和10−4 ~ 10−2s−1温度下，TRC ZMA611合金表现出比IC AZ31合金更高的拉伸伸长率和更快的应变速率。TRC ZMA611合金的超塑性性能主要是由于热稳定的细颗粒的存在，使晶粒尺寸稳定，从而促进晶界滑动。
The high-temperature deformation behavior of twin-roll cast (TRC) Mg–6Zn–1Mn–1Al (ZMA611) alloy has been investigated and compared with that of ingot cast (IC) Mg–3Al–1Zn (AZ31) alloy. At 543–603K and at 10−4–10−2s−1, TRC ZMA611 alloy shows much larger tensile elongation at a faster strain rate than IC AZ31 alloy. The superplastic properties of TRC ZMA611 alloy are mainly due to the presence of thermally stable fine particles, which stabilize grain size and hence promote grain boundary sliding.