李于朋

个人信息Personal Information

高级实验师

硕士生导师

教师英文名称:Liyupeng

教师拼音名称:liyupeng

出生日期:1982-10-28

电子邮箱:

入职时间:2009-05-18

所在单位:材料科学与工程学院

职务:教师

学历:研究生(博士)毕业

办公地点:材料楼214

性别:男

联系方式:15526639851

学位:博士学位

在职信息:在职

主要任职:材料科学与工程实验中学党支部书记,副主任

毕业院校:吉林大学

论文成果

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Microstructure and properties of FeCoNiCrAl high-entropy alloy particlereinforced Cu-matrix composites prepared via FSP

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所属单位:材料科学工程学院

教研室:材料科学工程学院

发表刊物:Journal of Alloys and Compounds

项目来源:省、市、自治区科技项目

关键字:High-entropy alloy;Cu-matrix composites;Friction stir processing;Mechanical properties;Wear

摘要:Although copper has excellent thermal conductivity, poor wear resistance seriously limits its development. In this paper, a Cu matrix surface composite material reinforced by FeCoNiCrAl high-entropy alloy particles was prepared by friction stir processing. The microstructure and properties of the composite were investigated. The results showed that both the FSP process and the addition of HEA particles contributed to the refinement of the Cu-matrix grains. A diffusion layer with a widthof about 0.8 μm was formed at the interface between the HEA particles and the Cu matrix. Compared with received Cu, the microhardness of Cu matrix in the composites was increased by 69.8%, the wear rate was re uced by 29.7%, and the wear resistance was significantly improved. Mean while, the ductility of the composite was consistent with that of the received Cu, and the thermal conductivity reached 87% of the received Cu. Therefore, this paper provided a new possibility for developing multifunctional structural materials with high wear resistance, high ductility, and high thermal conductivity.

合写作者:宫文彪

第一作者:李于朋

论文类型:期刊论文

页面范围:1

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发表时间:2023-02-15