Characterisation of a Ductile Ti-3Al-2.5V/TiBp Composite Produced via Mechanical Alloying
An in-situ Ti-3Al-2. 5V/TiBp discontinuously reinforced Titanium Matrix Composite, containing 10％ of TiB by volume, was produced via a powder metallurgy route. Ti-3Al-2. 5 alloy atomised powders were mechanically alloyed with 6. 4wt％ of TiB2 to produce composite powders. The powders were consolidated using Hot Isostatic Pressing. The consolidated composite was heat treated under various conditions to achieve a complete conversion of the TiB2 particles to TiB needles. Good ductility of the composite was achieved via this process. The microstructure of the composite is described here and analysed for the different stages of the process. Special attention is given to the influence of the different heat treatments on the microstructure, and their effect on the mechanical properties. A correlation between the microstructure and the theoretical mechanical properties is made using the Halpin-Tsai model.
Metal matrix composites titanium alloys mechanical alloying powder metallurgy metallography
ROPARS Ludovic SILK Jonathan BASS Nigel BIZE Tanguy GOURDET Sophie
Aerospace Metal Composites Ltd ,Rae Road ,GU14 6XE,Farnborough,United Kingdom EADS France-Innovation Aerospace Metal Composites Ltd ,Rae Road ,GU14 6XE,Farnborough,United Kingdom. EADS France-Innovation Works Department, 12 Rue Pasteur, 92150 Suresnes,France.
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1402-1406
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）