槽楔用CuNiCrBeTi铜合金的热处理工艺及其组织与性能  

Heat treatment process of slot wedge CuNiCrBeTi alloy and its microstructure and mechanical properties

作　　者：孙爱俊 谢春生[2] Sun Aijun;Xie Chunsheng(Zhenjiang Siyang Special Metal Material Manuihcture Co.,Ltd.,Zhenjiang Jiangsu 212003,China;School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang.liangsu 212003)

机构地区：[1]镇江四洋特种金属材料制造有限公司,江苏镇江212003 [2]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》2018年第11期73-76,共4页Heat Treatment of Metals

基　　金：江苏省科技支撑项目(BE2007068)

摘　　要：对槽楔CuNiCrBeTi合金开展了大量系统的热处理试验,研究其强化工艺。研究表明,该CuNiCrBeTi合金经950℃×1.5 h固溶＋25%的冷变形＋520℃×2 h时效处理后,其硬度可达到244 HBS、导电率47.23%IACS,室温下抗拉强度Rm=775 MPa,规定塑性延伸强度R（p0.2）=678 MPa,伸长率A5=18%,均达到了槽楔对材料的技术指标要求。Systematic heat treatments were carried out for slot wedge CuNiCrBeTi alloy to study its strengthening process.The results show that after solution treatment at 950℃ for 1.5 h,then 25% cold working and aged at 520℃ for 2 h,the hardness of the alloy is 244 HBS,the conductivity is 47.23% IACS,the ultimate strength Rm is 775 MPa,the proof strength R（P〈0.2）is 678 MPa,and the elongation A5 is 18%,which meet the technical requirements of the slot wedge.

关 键 词：槽楔 CuNiCrBeTi合金 固溶 时效 组织 硬度 导电率 

分 类 号：TG146.1[一般工业技术—材料科学与工程]