固溶处理对Cu-Cr-Zr合金组织与性能的影响  

Effect of solution treatment on microstructure and properties of Cu-Cr-Zr alloy

作　　者：马玉霞[1] 党淑娥[1] 陈慧琴[1] Ma Yuxia;Dang Shue;Chen Huiqin(College of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030024,China)

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024

出　　处：《金属热处理》2022年第1期163-166,共4页Heat Treatment of Metals

基　　金：山西省科技重大专项(20181101002);山西省研究生优秀创新项目(2020BY109);中央引导地方科技发展资金自由探索类基础研究项目(YDZJSX2021A039)。

摘　　要：对热轧态Cu-1.0Cr-0.1Zr合金在电阻炉中进行了不同温度不同保温时间的固溶处理,并对固溶后合金的组织与性能进行了检测,分析了固溶温度与时间对该合金组织性能的影响。结果表明:固溶后合金组织性能由回复、再结晶、未溶粒子回溶与晶粒长大综合影响;随固溶温度升高,合金的硬度先大幅下降,后不断上升,而导电率不断下降;随固溶时间的延长,合金的硬度呈抛物线升高并趋于平缓的趋势,导电率的变化则与之相反。在固溶温度为950℃,固溶时间为120 min时,固溶基本完成,此时硬度为58.9 HBS,导电率为50%IACS。Hot-rolled Cu-1.0 Cr-0.1 Zr alloy was solid-solution treated in a resistance furnace at different temperatures for different holding time. The microstructure and properties of the solution treated alloy were examined and the effect of solution temperature and holding time on microstructure and properties of the alloy were analyzed. The results show that the microstructure and properties of the alloy after solution treatment are affected by recovery, recrystallization, undissolved particle resolution and grain growth. As the solid solution temperature rises, the hardness of the alloy first drops sharply, and then continues to rise, while the electrical conductivity continues to drop. with the extension of solution time, the hardness of the alloy increases parabolically and tends to be flat, while the change in conductivity is the opposite. When solution treatment at 950 ℃ for 120 min, the solution is basically completed, and the hardness is 58.9 HBS and the conductivity is 50%IACS.

关 键 词：CU-CR-ZR合金 固溶温度 保温时间 硬度 导电率 

分 类 号：TG142.1[一般工业技术—材料科学与工程]