B变质对HPb59-1黄铜组织细化的影响  

Effects of B Modification on Microstructure of HPb59-1 Brass

作　　者：倪自飞[1] 程巨强[1] 刘志学[1] 

机构地区：[1]西安工业大学材料与化工学院

出　　处：《特种铸造及有色合金》2007年第1期70-72,共3页Special Casting & Nonferrous Alloys

基　　金：西安工业大学校长基金资助项目(编号:XGYXJJ0519)

摘　　要：研究了B变质处理及其变质处理后不同的保温时间对HPh59-1黄铜的组织与力学性能的影响。结果表明，HPh59-1黄铜中加入一定量的B可以细化HPh59-1黄铜的组织，改变α和β相组织的分布状态，提高合金的力学性能。细化效果随着B的含量的增加而增强，当B加入量范围在0．008％～0．015％时细化效果较好。变质处理后随熔体保温时间的延长，B细化变质效果存在衰退现象，保温10min后浇注，晶粒细化变质效果最好。Effects of B-modification and holding time after modification on the microstructure and mechanical properties of HPb59-1 brass were investigated.A certain amount of element B addition can improve the mechanical properties of the HPb59-1 brass,which is as a result of refining microstructure of the HPb59-1 brass and changing the distribution of α and β phases in the microstructure.Refinement can be improved with increasing in element B addition,in which the desirable refinement can be observed with adding B content in range of 0.008% to 0.015%.Modification effects of element B is fade with extending holding time,where desirable modification effects can be obtained with holding time for 10 min.

关 键 词：HPB59-1黄铜 组织 性能 细化变质 衰退 

分 类 号：TG113.1[金属学及工艺—物理冶金]