形变热处理工艺对Cu-Fe-P合金组织与性能的影响  

Effect of thermo⁃mechanical treatment process on the microstructureand properties of Cu⁃Fe⁃P alloy

作　　者：郑济森 张峻嘉 唐天轶 付莹 Zheng Jisen;Zhang Junjia;Tang Tianyi;Fu Ying(School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Key Laboratory of Lightweight Structural Materials,Northeastern University,Shenyang 110819,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)

机构地区：[1]东北大学材料科学与工程学院,沈阳110819 [2]东北大学辽宁省轻量化用关键金属结构材料重点实验室,沈阳110819 [3]松山湖材料实验室,广东东莞523808

出　　处：《材料与冶金学报》2023年第5期489-494,共6页Journal of Materials and Metallurgy

基　　金：松山湖材料实验室开放课题基金(2021SLABFN22);中央高校基本科研业务费专项资金项目(N2302009)。

摘　　要：Cu-Fe-P合金凭借优异的综合性能和低廉的制备成本,被广泛应用于集成电路引线框架的制备.随着对材料强度和电导率要求的愈发苛刻,如何进一步提高Cu-Fe-P合金的性能以满足使用要求成为当前的研究重点.本文中从成分设计与工艺优化两方面着手,采用双级变形+时效的形变热处理方法使Cu-3.19Fe-0.024P-0.077Zn合金性能得到显著提高.当合金强度达到477.1 MPa时,维氏硬度达到157.5,电导率保持在51.3%IACS.Cu⁃Fe⁃P alloy is widely used to prepare the lead frames of integrated circuits due to its excellent comprehensive properties and low preparation cost.As the requirements for material strength and electrical conductivity become increasingly stringent,how to further improve the properties of Cu⁃Fe⁃P alloy to meet the requirements has become the focus of current research.In the current study,the composition design and process optimization are carried out simultaneously,and the properties of Cu⁃3.19Fe⁃0.024P⁃0.077Zn alloy are significantly improved by the double⁃stage deformation+aging method.The alloy is successfully obtained with an electrical conductivity of 51.3%IACS,a tensile strength of 477.1 MPa and a hardness of HV 157.5.

关 键 词：CU-FE-P合金 形变热处理 显微组织 性能 

分 类 号：TG146.1[一般工业技术—材料科学与工程]