Effect of rolling and heat treatment on microstructure and mechanical properties of Mg3.5Y0.8Ca0.4Zr alloy
来源期刊：JOURNAL OF RARE EARTHS2012年第11期
论文作者：樊建锋 陈志远 马跃宇 韩刚 许并社 董洪标
文章页码：1146 - 1149
摘 要：The effect of rolling and heat treatment on microstructure and mechanical properties of Mg3.5Y0.8Ca0.4Zr alloy was investigated.With the addition of 0.4Zr,the average grain size of the as-cast alloy was markedly refined to 5-10 μm.After hot rolling process,the grain size of Mg3.5Y0.8Ca0.4Zr alloy was refined further into 3-5 μm and the tensile strength was enhanced while the plasticity was degraded because the accumulation of rolling reduction increased the density of twins,and refined the grain structures.After the solution heat treatment at 743 K,the elongation of alloy was greatly enhanced from 3% to 17%.
樊建锋1,2,3，陈志远1,2,3，马跃宇4，韩刚1,2,3，许并社1,2,3，董洪标1,2,3
1. Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology2. Shanxi Research Center of Advanced Materials Science and Technology3. College of Materials Science and Engineering,Taiyuan University of Technology4. General Research Institute for Non-ferrous Metals
摘 要：The effect of rolling and heat treatment on microstructure and mechanical properties of Mg3.5Y0.8Ca0.4Zr alloy was investigated.With the addition of 0.4Zr,the average grain size of the as-cast alloy was markedly refined to 5-10 μm.After hot rolling process,the grain size of Mg3.5Y0.8Ca0.4Zr alloy was refined further into 3-5 μm and the tensile strength was enhanced while the plasticity was degraded because the accumulation of rolling reduction increased the density of twins,and refined the grain structures.After the solution heat treatment at 743 K,the elongation of alloy was greatly enhanced from 3% to 17%.
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