Effect of rolling and heat treatment on microstructure and mechanical properties of Mg3.5Y0.8Ca0.4Zr alloy

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 allo...

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Published inJournal of rare earths Vol. 30; no. 11; pp. 1146 - 1149
Main Author 樊建锋 陈志远 马跃宇 韩刚 许并社 董洪标
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2012
Subjects
Density
Elongation
Grain size
Heat treatment
Hot rolling
magnesium alloy
Magnesium base alloys
Mechanical properties
Microstructure
plastic deformation
Rare earth metals
rare earths
力学性能
平均晶粒尺寸
拉伸强度
显微组织
热处理组织
热轧过程
轧制
铸态合金
magnesium alloy
heat treatment
mechanical properties
plastic deformation
rare earths
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ISSN1002-0721
2509-4963
DOI10.1016/S1002-0721(12)60196-3

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Summary: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 lain and the tensile strength was enhanced while the plasticity was degraded because the accumulation of rolling reduction increased the density oft-wins, and refined the grain structures. After the solution heat treatment at 743 K, the elongation of alloy was greatly enhanced from 3% to 17%.
Bibliography: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 lain and the tensile strength was enhanced while the plasticity was degraded because the accumulation of rolling reduction increased the density oft-wins, and refined the grain structures. After the solution heat treatment at 743 K, the elongation of alloy was greatly enhanced from 3% to 17%.
11-2788/TF
FAN Jianfeng , CHEN Zhiyuan , XU Bingshe , DONG Hongbiao , MA Yueyu , HAN Gang XU Bingshe , DONG Hongbiao （1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China,＂ 2 Shanxi Research Center of Advanced Materials Science and Technology, Taiyuan 030024, China,＂ 3. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China 4. General Research Institute for Non-ferrous Metals, Beijing 100088, China）
magnesium alloy; plastic deformation; heat treatment; mechanical properties; rare earths
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(12)60196-3