摘要
采用2种制备工艺,即连铸+冷拉丝加工工艺(CC+CD)和连铸+等径角挤压+冷拉丝加工工艺(CC+ECAP+CD)制备Cu-8%Ag合金(质量分数),随后进行时效处理。分别测试了不同应变量下Cu-8%Ag合金的力学性能和电学性能,探究了不同制备工艺下合金的显微组织、力学性能及电学性能的变化规律,分析了影响其性能变化的原因,并讨论了ECAP技术与传统冷加工技术相结合是否可以获得更好的综合性能。结果表明:采用CC+ECAP+CD制备的Cu-8%Ag合金的综合性能略高于CC+CD制备的合金。这对解决Cu-Ag合金的高强度与高导电率之间此消彼长的问题具有一定的研究意义和应用价值。
Cu-8wt%Ag alloy was prepared by two kinds of preparation techniques, namely continuous casting ＋ cold wire-drawing deformation preparation（CC ＋ CD） and continuous casting ＋ equal channel angular pressing ＋ cold wire-drawing deformation preparation（CC ＋ ECAP ＋ CD）, and subsequently the aging treatment was performed. We measured the mechanical property and the electrical property of the Cu-8wt%Ag alloy with different strains, explored the changing rules of the microstructure, the mechanical property and the electrical property by different preparation techniques. Then we analyzed the changing reasons of performance and discussed whether the better comprehensive performance could be acquired by combining the ECAP with the traditional cold-processing. The results show that the comprehensive performance of the Cu-8wt%Ag alloy prepared by CC ＋ ECAP ＋ CD is a little better than that by CC ＋ CD. It is significant and valuable to solve the waxing and waning problem between the high strength and high conductivity of the Cu-Ag alloy.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2016年第8期1997-2002,共6页
Rare Metal Materials and Engineering
基金
National Natural Science Foundation of China(51164015)
Applied Basic Research Key Programs of Yunnan Province(2011FA026)
