Investigation of the preparation of TiAl-base high temperature alloys by Gelcasting process

摘要：

In this research,the titanium powder and aluminum powder have been successfully mixed by ball milling,and then it has been dealt with low temperature presintering,gel-casting and high temperature sintering in protective atmosphere.We successfully prepared the TiAl alloy powder.And The effects of technological parameters,such as modified starch content,solid volume loading on the rheological behavior of ceramics slurry,density and strength of the green bodies was researched.The TiAl alloy powder mainly contains TiAl phase,and a small amount of Ti3Al phase existed.In the gelcasting,the fine range of solid loading is 54 vol％-58vol％.The sintering temperature of green body is 1480℃.The TiAl alloys” density ratio reached 96.8％.

关键词： TiAl alloy powder gelcasting solid loading controllable solidify density strength

作者: Xinyue Zhang Zhimeng Guo Huiping Shao

作者单位: University of Science and Technology Beijing,School of Materials Science and Engineering,Beijing 100083,P.R.China

会议类型: 国内会议

会议名称: 2013年全国粉末冶金学术会议及海峡两岸粉末冶金技术研讨会

会议地点: 厦门

会议语种:英文

页码: 1-4

在线出版日期: 2013-11-01（万方平台首次上网日期，不代表论文的发表时间）