固溶处理对AZ81-xSr合金组织及力学性能的影响

冒国兵; 孙宇峰

doi:10.15980/j.tzzz.2014.01.028

试验研究 | 浏览量 : 0 下载量: 99 CSCD: 1

导出
分享
收藏
专辑

固溶处理对AZ81-xSr合金组织及力学性能的影响
Effects of Solid-Solution Treatment on Microstructure and Mechanical Properties of AZ81-xSr Alloy
2014年34卷第1期页码：6-8
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.01.028

扫描看全文

[1]冒国兵,孙宇峰.固溶处理对AZ81-xSr合金组织及力学性能的影响[J].特种铸造及有色合金,2014,34(01):6-8.

Mao Guobing, Sun Yufeng. Effects of Solid-Solution Treatment on Microstructure and Mechanical Properties of AZ81-xSr Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(1):6-8.
[1]冒国兵,孙宇峰.固溶处理对AZ81-xSr合金组织及力学性能的影响[J].特种铸造及有色合金,2014,34(01):6-8. DOI： 10.15980/j.tzzz.2014.01.028.

Mao Guobing, Sun Yufeng. Effects of Solid-Solution Treatment on Microstructure and Mechanical Properties of AZ81-xSr Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(1):6-8. DOI： 10.15980/j.tzzz.2014.01.028.

摘要

研究了固溶处理对AZ81-xSr（x=0.9、1.8、2.7）镁合金铸态组织及力学性能的影响。结果表明

该合金被固溶处理后

合金组织中的β-Mg17Al12相几乎全部溶于α-Mg基体中

而Sr5Al9相未见溶解。固溶处理使热稳定的Sr5Al9相由骨骼状向层片状和颗粒状转变。并且

固溶处理后

该合金的高温力学性能和硬度得到明显提高。

Abstract

Effects of solid-solution treatment on microstructure and mechanical properties of AZ81-xSr magnesium alloy were investigated.The results indicate that theβ-Mg17Al12 phase of AZ81-xSr alloy is almost totally dissolved into matrix after solid-solution treatment

however

Sr5Al9 phase is not dissolved into matrix.After solid-solution treatment

the form of new skeleton-like Sr5Al9 phase is changed to be lamellar and particular structure.Moreover

mechanical properties and hardness of the alloy are also obviously improved after the solid-solution treatment.