预时效对Cu-6Ag合金组织与性能的影响

杨学强; 安佰灵; 张林; 王恩刚

doi:10.15980/j.tzzz.2022.01.006

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预时效对Cu-6Ag合金组织与性能的影响
Effects of Pre-aging on Microstructure and Properties of Cu-6Ag Alloy
2022年42卷第1期页码：32-35
纸质出版日期： 2022 ，
DOI： 10.15980/j.tzzz.2022.01.006

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杨学强, 安佰灵, 张林, 等. 预时效对Cu-6Ag合金组织与性能的影响[J]. 特种铸造及有色合金杂志, 2022,42(1):32-35.

Effects of Pre-aging on Microstructure and Properties of Cu-6Ag Alloy[J]. Special Casting & Nonferrous Alloys, 2022,42(1):32-35.
杨学强, 安佰灵, 张林, 等. 预时效对Cu-6Ag合金组织与性能的影响[J]. 特种铸造及有色合金杂志, 2022,42(1):32-35. DOI： 10.15980/j.tzzz.2022.01.006.

Effects of Pre-aging on Microstructure and Properties of Cu-6Ag Alloy[J]. Special Casting & Nonferrous Alloys, 2022,42(1):32-35. DOI： 10.15980/j.tzzz.2022.01.006.

摘要

以Cu-6Ag合金为研究对象

对其进行不同时间的预时效处理

研究了预时效对Cu-6Ag合金的微观组织、硬度和电导率的影响

并与单级析出时效工艺进行对比。结果表明

Cu-6Ag合金的最佳预时效时间为8 h

此时合金的析出相尺寸无明显变化

但析出相之间的宽度较单级析出时效的试样明显减小

硬度(HV)提升了9.4

但对电导率几乎没有影响。

Abstract

The effects of pre-aging on the microstructure

hardness and electrical conductivity of Cu-6 Ag alloy were investigated and compared with those of specimens subjected to single-stage precipitation aging. The results indicate that the optimal pre-aging time is 8 h. Meanwhile

the size of precipitates has no obvious change

where the spacing of precipitates are decreased compared with that of the single-stage aging specimens

leading to an increase of hardness by 9.4 HV. However

effects on the electrical conductivity can be neglected.