A Study on Characteristics of TiH2-Al-Nb Alloyed Powder During High Energy Ball Milling

摘要：

In this paper, TiH2-47Al-5Nb (at.％) and TiH2-47Al-7Nb(at.％) alloys were mixed and synthesized using TiH2, Al and Nb powders. The composition and morphology evolution of the mixed powder were systematically investigated during high energy ball milling. The results show obvious that structure change of the particle during milling, and amorphous, TiAl, Ti3Al and Ti2Al phases at nanoscale are formed. The addition of Nb shows an active influence on the decomposition of TiH2 and formation of TiAl-intermetallics. Compare with Ti-Al system alloy, the forming process of TiAl-intermetallics for TiH2-Al-Nb system alloy is different and slower. Ti2Al metastable phase formed after ball milling for 15 h in our experiments.

关键词： TiH2-Al-Nb alloy high energy ball milling TiAl-intermetallics powder characteristic

作者: Hua Chen Tianyu Zhang Y. Lu Suqiu Jia Zhilong Chai

作者单位: Key Laboratory of Advanced Structrural Materials，Ministry of Education, Changchun University ofTechn Faculty of Engineering and Resource Science, Akita University, Akita,Japan Research Institute of First Automobile Factory of China, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 1-5

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）