Research Progress in Precipitated Phases and Mechanical Properties of Mg-Zn-Gd Alloy

Guo Huizhen; Cao Furong

doi:10.15980/j.tzzz.2021.12.002

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Research Progress in Precipitated Phases and Mechanical Properties of Mg-Zn-Gd Alloy
Vol. 41, Issue 12, Pages: 1458-1462(2021)
Published： 2021 ，
DOI： 10.15980/j.tzzz.2021.12.002

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Guo Huizhen, Cao Furong. Research Progress in Precipitated Phases and Mechanical Properties of Mg-Zn-Gd Alloy. [J]. Special Casting & Nonferrous Alloys 41(12):1458-1462(2021)
DOI：

Guo Huizhen, Cao Furong. Research Progress in Precipitated Phases and Mechanical Properties of Mg-Zn-Gd Alloy. [J]. Special Casting & Nonferrous Alloys 41(12):1458-1462(2021) DOI： 10.15980/j.tzzz.2021.12.002.

摘要

镁合金由于屈服强度和硬度等力学性能相对较低

限制了其作为结构件的应用范围。对稀土镁合金的熔炼、铸造、热处理、塑性加工等进行了大量研究

通过调控合金中第二相种类、形态与分布

逐步建立合金成分、工艺参数、组织性能的相互关系。主要论述了Mg-Zn-Gd合金第二相的特征及其析出规律

总结了镁合金成分和加工工艺对其力学性能的影响

并对Mg-Zn-Gd合金的研究方向进行了展望。

Abstract

The application of magnesium alloy as a structural member has been restricted due to its poor mechanical properties such as yield strength and hardness. A lot of results of rare earth（RE） magnesium alloys were presented on the smelting

casting

heat treatment

plastic processing etc. By adjustment of the type

shape and distribution of the second phase in the alloy

the relationship between alloy composition-process parameters-structure and properties was gradually established. The characteristics and precipitation law of the second phases in Mg-Zn-Gd alloys were expounded

and the influence of alloy composition and processing technology on the mechanical properties of the present alloy was reviewed. Finally

the problems that need to be concerned in the Mg-Zn-Gd alloys were put forward.