Effects of Solid Solution on Microstructure and Hardness of AM50 Magnesium Alloy

Chen Zonghuan; Lin Jida; Xu Sheng’ai; Wang Chengwei

doi:10.15980/j.tzzz.2013.11.015

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Effects of Solid Solution on Microstructure and Hardness of AM50 Magnesium Alloy
Vol. 33, Issue 11, Pages: 1078-1080(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.11.015

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[1]陈宗欢,林继达,许生爱,王承伟.固溶处理对铸造AM50镁合金组织和硬度的影响[J].特种铸造及有色合金,2013,33(11):1078-1080.

Chen Zonghuan, Lin Jida, Xu Sheng’ai, et al. Effects of Solid Solution on Microstructure and Hardness of AM50 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 33(11):1078-1080(2013)
[1]陈宗欢,林继达,许生爱,王承伟.固溶处理对铸造AM50镁合金组织和硬度的影响[J].特种铸造及有色合金,2013,33(11):1078-1080. DOI： 10.15980/j.tzzz.2013.11.015.

Chen Zonghuan, Lin Jida, Xu Sheng’ai, et al. Effects of Solid Solution on Microstructure and Hardness of AM50 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 33(11):1078-1080(2013) DOI： 10.15980/j.tzzz.2013.11.015.

摘要

研究了铸造AM50镁合金的铸态组织和硬度

以及固溶处理对铸造AM50镁合金的显微组织和硬度的影响。结果表明

铸造AM50镁合金的铸态组织为α-Mg基体晶界上分布着呈不连续的网状的β-Mg17Al12相。固溶处理后

β-Mg17Al12相逐步向α-Mg内部溶解和扩散

其组织变得均匀、致密

但硬度比铸态时的有所下降。

Abstract

Microstructure and hardness of cast AM50magnesium alloy were analyzed

and effects of T4and T6treatment on microstructure and hardness of the alloy were approached.The results reveal that the microstructure of the AM50alloy is composed ofα-Mg phase andβ-Mg17Al12phase which is discontinuously distributed along the primary phase boundary.After solid solution treatment

β-Mg17Al12phase is dissolved gradually into theα-Mg phase

resulting in the uniform and fine distribution in the microstructure

however

the hardness is decreased slightly.