Influence of Ti/Al Ratio and Al Powder Size on Pore Features of PM Titanium Aluminide Porous Material

摘要：

In this paper, influence of Ti/Al ratio and Al powder size on pore features during cold-press, low temperature sintering and high temperature sintering process was studied in preparing Ti-Al porous material. And the shape variation of pores with different Ti/Al ratio and Al powder size was also analysed by metallographs. The result shows that,the porosity of billets with different Ti/Al ratio is between 30％ - 60％ after sintering process. The compression strength of billets with different Ti/Al ratio is between 9-275MPa. The pore shape is changed with different Al powder size. The number of interconnected pore increases with increasing Al powder size. The aggregation of Al powder appears when the Al powder size is too small,and the inhomogeneous pores with different size appear after sintering process.

关键词： Ti/Al ratio AL powder size Pore features Ti-Al porous material

作者: Li Daren Cai Yixiang Fu Jingyi

作者单位: Guangzhou Research Institute of Non-ferrous Metals,Guangzhou 510651 ,China

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 1394-1397

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）