Mechanical and Erosion Behaviour of Ti47Al-3W/TI2ALC Composites by Reactive Arc-Melting

Advanced Composites Letters

Article

Kenji Morii¹  H. Mabuchi¹  H. Tsuda¹  T. Matsui¹  R. Krishnamurthy²  S.K. Malhotra²  Janakarajan Ramkumar²  Atsushi Kakitsuji³ 

[1] Graduate school of Engineering, Osaka Prefecture University, Sakai 599–8531, Japan;Indian Institute of Technology Madras, Chennai, India 600 036;Technology Research Institute of Osaka Prefecture, Izumi, 594-1157, Japan;

关键词: Titanium aluminides;    particle reinforced composites;    Microstructure;    Hardness;    Erosion test;   

DOI  :  10.1177/096369350301200402

 received in 2003-03-01, accepted in 2003-07-01,  发布年份 2003

来源: Sage Journals

【 摘 要 】

Ti-50Al alloy and Ti-47Al-3W alloy and its composites have been prepared by reactive arc melting technique using elemental powders. Composites have been reinforced using 3.5, 10 and 18 vol% of Ti2AlC in the matrix of TiAl with and without addition of W and C. By the addition of tungsten and carbon to TiAl alloy, we have produced composites that are reinforced randomly by reacted rod like Ti2AlC particles with fine precipitate of Ti2AlC particles and B2 particles. Compared to Ti-50Al alloys, the Ti-47Al-3W alloy and its composites have superior mechanical properties like bending strength, hardness, fracture toughness and erosion. Ti-47Al-3W/3.5 vol% Ti2AlC has excellent erosion resistance because of the dispersion of fine Ti2AlC and B2 particles in the matrix.

【 授权许可】

Unknown   
© 2003 SAGE Publications Ltd

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