Transactions of Materials and Heat Treatment

Title：Influence of different deformation amounts on microstructure and properties of Cu-2Ag alloy

Authors： Zhou Fei1 Zhang Yanmin1 2 Song Kexing1 2 Gao Hongjiao1

Unit： 1.School of Materials Science and Engineering Henan University of Science and Technology 2.Henan Key Laboratory of Non-Ferrous Materials Science and Processing Technology

KeyWords： cold rolling Cu-2Ag alloy microstructure conductivity mechanical properties

ClassificationCode：

year,vol(issue):pagenumber：2022,47(3):206-210

Abstract：

When the total deformation was constant, Cu-2Ag alloy bars were rolled and deformed by different passes and different deformation amounts, and the influences of different deformation processes on the microstructure, electrical conductivity and mechanical properties of Cu-2Ag alloy were studied. The results show that the distribution of deformation amount in each pass has different effects on the properties of the alloy when the total deformation is constant. The results of conducivity and hardness are as follows: Process 1，82.75% IACS, 170.34 HV; Process 2，83.62% IACS, 174.82 HV; Process 3，82.72% IACS, 180.26 HV. Under the experimental conditions, the larger the rolling deformation (60%) of the first pass is, the better the comprehensive properties of the alloy are. The microstructure of the alloy before rolling is dominated by staggered network dendrites, and after rolling deformation, the dendrites are deformed to different degrees, which is the main reason for the different properties of the alloy. However, the microstructure parallel to the rolling direction is dominated by continuously arranged “fishbone” dendrites, and after rolling deformation, the dendrite spacing increases. Within the test range, after the deformation of Process 3, the hard conductivity of the alloy reaches 0.989, and its comprehensive properties are good.

Funds：

河南省重大科技专项（创新引领专项）（191110210400）

周菲（1998-），女，硕士研究生 E-mail：zhoufei_0526@163.com 通信作者：张彦敏（1970-），女，博士，教授 E-mail：zhangmin70@163.com

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