Effects of Ti Modification on As-cast Microstructure and Mechanical Properties of ZCuZn40Pb2 Alloy

Chen Juqiang; Liu Zhixue; Hu Yao

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Effects of Ti Modification on As-cast Microstructure and Mechanical Properties of ZCuZn40Pb2 Alloy
Vol. 29, Issue 1, Pages: 91-93(2009)
Published： 2009 ，
DOI：

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[1]程巨强,刘志学,胡垚.Ti变质对ZCuZn40Pb2组织和力学性能的影响[J].特种铸造及有色合金,2009,29(01):91-93+16.

Chen Juqiang, Liu Zhixue, Hu Yao. Effects of Ti Modification on As-cast Microstructure and Mechanical Properties of ZCuZn40Pb2 Alloy. [J]. Special Casting & Nonferrous Alloys 29(1):91-93(2009)
[1]程巨强,刘志学,胡垚.Ti变质对ZCuZn40Pb2组织和力学性能的影响[J].特种铸造及有色合金,2009,29(01):91-93+16. DOI：

Chen Juqiang, Liu Zhixue, Hu Yao. Effects of Ti Modification on As-cast Microstructure and Mechanical Properties of ZCuZn40Pb2 Alloy. [J]. Special Casting & Nonferrous Alloys 29(1):91-93(2009) DOI：

摘要

研究了Ti变质处理及其变质处理后不同的熔体保温时间对ZCuZn40Pb2铸态组织和力学性能的影响。结果表明

ZCuZn40Pb2加入一定量的Ti可以细化铅黄铜的铸造组织

使粗大的板条状α、β组织变成短小的片状

从而提高合金的力学性能。当Ti加入量在0.06%～0.10%时细化效果较好。Ti变质处理后随熔体保温时间的延长

存在变质衰退的现象

保温30min以内浇注

变质细化效果较好。

Abstract

Effects of Ti modification and holding time on as-cast microstructure and mechanical properties of ZcuZn40Pb2 alloy were described. It is found that as-cast microstructure of the lead brass can be refined with Ti addition

which results in the increase of mechanical properties as a result of coarse α

β plate transforming into short-fine lamellar structure. The satisfactory refinement in microstructure of the lead brass can be observed with addition of 0.06%

.10% Ti. However

modification effects of Ti on the lead brass are faded with increasing in holding time

and desirable refinement can be obtained with pouring after holding time for 30min.