铸态铅黄铜的准超塑性及应用  

Quasi-superplasticity and Application of As-cast Leaded Brass

作　　者：董文杰[1] 杨永顺[1] 杨正海[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《热加工工艺》2007年第1期44-46,共3页Hot Working Technology

基　　金：河南省科技项目(0624260035)

摘　　要：通过恒速拉伸试验,对一种生产保持架用铅黄铜的准超塑性进行研究。由正交试验法确定出最佳超塑性条件;考察了变形温度、初始应变速率对其影响,并测定其力学性能。结果表明:此种不经预处理的铸态铅黄铜,在适当条件下具有一定的超塑性。依据试验结果,生产出高速重载轴承的保持器。The quasi-superplasticity of leaded brass for bearing cage was investigated through the constant velocity tensile test. The optimal supecplastic condition was determined hy orthogonal experiment. The effect of deformation temperature and initial strain rate on the superplasticiry of the alloy was observed. The mechanical property was mensurated. It is indicated that as-cast leaded brass without pretreatment can present certain superplasticity at proper condition. Depeading on the results, the high-speed heavy-duty bearing cages have been produeted.

关 键 词：铸态铅黄铜 准超塑性 拉伸试验 力学性能 

分 类 号：TG306[金属学及工艺—金属压力加工]