时效工艺对CuNiBeZr合金组织和性能的影响  

Effect of aging on microstructure and properties of CuNiBeZr alloy

作　　者：阎璐[1] 孙菲[1] 花思明[1] 谢春生[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《金属热处理》2012年第10期54-57,共4页Heat Treatment of Metals

基　　金：江苏省科技支撑项目(BE2007068)

摘　　要：对CuNiBeZr合金进行了固溶、冷变形、时效等一系列不同热处理工艺试验,特别是对不同工艺时效后合金的组织和性能进行了研究。结果表明,CuNiBeZr合金先经固溶,再经过25%冷变形、340℃×1 h+470℃×2.5 h分级时效处理后,合金具有优良的综合性能,抗拉强度达到809 MPa,硬度达到251 HB,导电率达到57.2%IACS。经分级时效处理后,CuNiBeZr合金具有高的抗拉强度与硬度,同时保持较高的导电率。Different heat treatment test such as solid solution, cold deformation and aging for CuNiBeZr alloy were studied, especially mierostructure and properties of CuNiBeZr alloy after different aging processes. The results show that the CuNiBeZr alloy deformed at 25% after step aging 340 ℃x1 h ＋470 ℃ x2. 5 h shows better comprehensive properties, tensile strength reaches 809 MPa, hardness 251 HB, and conductivity 57. 2% IACS. After step aging, the CuNiBeZr alloy shows high tensile strength and hardness as well as conductivity.

关 键 词：CuNiBeZr合金 冷变形 分级时效 强度 导电率 

分 类 号：TG156.92[金属学及工艺—热处理]