Characterisation of Mg-Li alloy processed by solution treatment and large strain rolling

被引：17

作者：

Kang, Z. X. ^{[1
]}

Lin, K. ^{[1
]}

Zhang, J. Y. ^{[1
]}

机构：

[1] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2016年 / 32卷 / 05期

关键词：

Mg-Li alloy; Solution treatment; Large strain rolling; MECHANICAL-PROPERTIES; DYNAMIC RECRYSTALLIZATION; TENSILE PROPERTIES; MAGNESIUM ALLOY; HIGH-STRENGTH; MICROSTRUCTURE; BEHAVIOR; EVOLUTION;

D O I：

10.1179/1743284715Y.0000000119

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of solution treatment and large strain rolling (LSR) on the microstructure and mechanical properties of Mg-10.73Li-4.49Al-0.52Y alloy were investigated. Results showed that after solution treatment, alpha-phase and AlLi phase were dissolved into beta matrix, which led to the increase of strength. With the increased temperature of LSR, new phase MgLi2Al (h-phase) and AlLi phase precipitated from the matrix in turns. The Mg-Li alloy rolled at 623 K with 75% reduction showed the ultimate tensile strength of 328 MPa, which was more superior to many other Mg-Li alloys. The excellent strength could be explained by the mechanisms of solution strengthening and fine grain strengthening.

引用

页码：498 / 506

页数：9

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