Titanium and Titanium Alloy via Sintering of TiH₂

• DOI: 10.4028/www.scientific.net/kem.436.157
• Publication Date: 2010-05-04T12:54:33Z
• Authors: Hong Tao Wang; Michael Lefler; Z. Zak Fang; Ting Lei; Shu Ming Fang; Jia Min Zhang; Qun Zhao
• Keywords: Titanium hydride; Powder Metallurgy; Titanium alloy; Titanium powder; Thermogravimetric analysis

Blended elemental (BE) powder metallurgy (PM) is a promising low cost approach for manufacture titanium and alloy components. Conventional BE method relies on sintering of pure metal powder, while the new examined in this investigation produces bulk materials by hydride powder. Dehydrogenation densification TiH2 powders with different particle sizes TiH2-6Al-4V was studied using thermogravimetric dilatometric techniques. The results show that dehydrogenation leads to very rapid shrinkage α-Ti during sintering. In contrast, requires dissolution elements which occurs above its beta transus temperature.