Effect of Mn on microstructure and properties of Cu-12Al powder metallurgy alloy

被引：14

作者：

Zhang, Guofei ^{[1
]}

Yin, Haiqing ^{[1
,2
]}

Zhang, Cong ^{[1
,2
]}

Deng, Zhenghua ^{[1
,3
]}

Zhang, Ruijie ^{[1
,2
]}

Jiang, Xue ^{[1
,2
]}

Qu, Xuanhui ^{[1
,4
]}

机构：

[1] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China

[2] Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China

[3] Chongqing Three Gorges Univ, Chongqing Engn Technol Res Ctr Light Alloy & Proc, Chongqing 404000, Peoples R China

[4] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2020年 / 7卷 / 01期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Cu-Al-Mn alloy; powder metallurgy; microstructure; mechanical properties; SLIDING WEAR BEHAVIOR; AGING HEAT-TREATMENT; SHAPE-MEMORY; ALUMINUM BRONZE; PARAMETERS; TRANSFORMATION; STABILITY;

D O I：

10.1088/2053-1591/ab63f8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cu-12Al-xMn (x = 0, 1, 2, 3, 4%, mass fraction) alloys were produced using powder metallurgy to investigate the effect of Mn content on the alloy's microstructure and mechanical properties. The Cu-12Al (no Mn) and Cu-12Al-1Mn (1 wt% Mn) alloys consisted of the alpha + gamma phases, where the size of the alpha grains in the Cu-12Al-1Mn alloy are much larger. Mn effectively inhibited the eutectoid transformation at a concentration above 1 wt%. Furthermore, the beta phase was converted to the beta '-martensite phase, which had a monoclinic structure after slow cooling. The phases of the alloy changed from the alpha + gamma phases to the alpha + beta ' + gamma phases with the further addition of Mn, and the tensile strength of the 3 wt% Mn alloy was 380.59 MPa. The addition of Mn did not have a significant effect on the density of the alloy.

引用

页数：11

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