Effects of solution treatment on mechanical properties and degradation of Mg-2Zn-0.5Nd-0.5Zr alloy

被引：14
作者：
Chen, Junxiu [1 ,2 ]
Wei, Sheng [1 ,2 ]
Tan, Lili [1 ]
Yang, Ke [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China
来源：
MATERIALS TECHNOLOGY | 2019年 / 34卷 / 10期
关键词：
Magnesium alloy; solution treatment; mechanical properties; galvanic corrosion; degradation rate; BIODEGRADABLE MAGNESIUM SCREW; GRAIN-REFINEMENT; IN-VIVO; MG-2ZN-2GD ALLOY; CORROSION; BEHAVIOR; ND; MICROSTRUCTURE; EXTRUSION; STRENGTH;
D O I：
10.1080/10667857.2019.1603657
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Heat treatment is an effective method to reduce the degradation rate of biodegradable magnesium alloys, especially solution treatment. In this work, the effects of solution treatment on microstructure, mechanical properties and degradation behaviour of a Mg-2Zn-0.5Nd-0.5Zr alloy were investigated. The results showed that with increase of solution temperature, the grain size increased from 4-5 mu m for the untreated alloy to 25-30 mu m for the 550 degrees C treated alloy and the second phases were dissolved into the alloy matrix gradually. With increase of the temperature, both ultimate tensile strength and yield strength of the alloy were decreased, while the elongation was increased. The alloy after 500 degrees C solution treatment exhibited the lowest degradation rate and showed a uniform degradation process.
引用
收藏
页码：592 / 601
页数：10
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