Influence of Pre-deformation on Aging Precipitation and Mechanical Properties of Cu-Ag Alloy

被引：0
作者：
Du Jingwen [1 ,2 ]
An Bailing [1 ,3 ]
Zhang Lin [1 ,2 ]
Wang Engang [1 ]
机构：
[1] Northeastern Univ, Key Lab Elect Proc Mat, Minist Educ, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
[3] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2023年 / 52卷 / 01期
关键词：
Cu-6Ag; pre-deformation; aging precipitation; discontinuous precipitation; property; HIGH-STRENGTH; ZR ADDITIONS; MICROSTRUCTURE; CONDUCTOR; COMPOSITE; CR;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu-Ag alloy is a kind of high-strength and high-conductivity alloy with important application prospects. The improvement of the properties of Cu- Ag alloy depends on the development of the deformation and heat-treatment process. However, the effect of pre-deformation before the heat treatment has not attracted sufficient attention. The effects of pre-deformation on microstructure and properties after solid solution were investigated using XRD analysis, Vickers hardness, conductivity, metalloscope and scanning electron microscopy. The results show that pre-deformation promotes the recrystallization of Cu-6Ag alloy, and the grain size is obviously reduced. Meanwhile, the pre-deformation reduces the amount of Ag in Cu-6Ag alloy after aging treatment. Discontinuous precipitates are observed in samples with or without pre-deformation. The discontinuous precipitation in the pre-deformation alloy has a smaller spacing of 95 +/- 9.5 nm. The hardness of pre-deformation alloy is 840.8 MPa, lower than that of unpre-deformation alloy. The conductivity of pre-deformation alloy is almost equal to unpre-deformation alloy, which is 90.3%IACS.
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页码：403 / 408
页数：6
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