Effect of Simultaneous Addition of Mn and Mischmetal on the High Temperature Deformation Behavior of AZ61 Magnesium Alloy

被引：3
|
作者：
Wu, Xiaochao [1 ,2 ]
Chen, Mao [1 ]
Qu, Ruixiao [1 ]
Li, Qingkui [1 ,2 ]
Guan, Shaokang [1 ,2 ]
机构：
[1] Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Key Lab Adv Magnesium Alloys Henan Prov, Zhengzhou 450003, Henan, Peoples R China
来源：
MATERIALS TRANSACTIONS | 2017年 / 58卷 / 07期
基金：
中国国家自然科学基金;
关键词：
AZ61 magnesium alloy; simultaneous addition of manganese and mischmetal; true stress-true strain curves; dynamic softening; second phases; HOT COMPRESSION DEFORMATION; STRAIN-RATE; DYNAMIC RECRYSTALLIZATION; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; FLOW-STRESS; MG ALLOY; MICROSTRUCTURE; EVOLUTION; TEXTURE;
D O I：
10.2320/matertrans.M2016445
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gleeble-2000D elevated temperature simulation tester at strain rates of 0.1 s(-1) and 1 s(-1) and deformation temperatures of 523 K, 623 K and 723 K. The microstructure evolutions and second phases of the experimental alloys were analyzed. Compared to the conventional alloy, the modified specimen shows a higher degree of dynamic softening and a lower deformation resistance. The improved deformability becomes more apparent when temperature decreases or strain rate increases, and it is attributed to a great reduction in Mg17Al12 phase and to the formation of Al4RE and Al10RE2Mn7 phases caused by the simultaneous addition of Mn and mischmetal.
引用
收藏
页码：1000 / 1006
页数：7
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