Effect of Y on microstructure, damping properties and mechanical properties of Cu-Al-Ni-Mn alloy

被引：13
作者：
Yang, Liu [1 ,2 ]
Jiang, Xiaosong [1 ,2 ]
Sun, Hongliang [1 ,2 ]
Shao, Zhenyi [1 ,2 ]
Fang, Yongjian [3 ]
Shu, Rui [4 ]
机构：
[1] Minist Educ, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China
[2] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China
[3] Sungkyunkwan Univ, Sch Mech Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea
[4] Forschungszentrum Julich, Inst Energieund Klimaforsch Plasmaphys IEK 4, D-52425 Julich, Germany
来源：
MATERIALS LETTERS | 2022年 / 308卷
基金：
中国博士后科学基金;
关键词：
Metals and alloys; Microstructure; Mechanical properties; Damping properties;
D O I：
10.1016/j.matlet.2021.131170
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Y content on the microstructure, mechanical and damping properties of Cu-11Al-3Ni-2.5Mn-chi Y (chi = 0, 0.5, 1, 2, wt.%) alloys were investigated. The results of X-ray diffraction (XRD) analysis showed that the alloy was mainly composed of 18R martensite, alpha-Cu and gamma(2)-Cu9Al4. The Y2O3 particles appear after the addition of Y elements. The grain size is reduced to 36.5 mu m when 1 wt.% Y element was added, and the combined effect of the grain size reduction and the Y2O3 particles increases the tensile strength to 601.75 MPa. Meanwhile, the alloy at this content has high damping properties, the damping peaks at room temperature and temperature 600 degrees C were 0.038 and 0.24, respectively.
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页数：4
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