Apr 4, 2012 - By Zhigang Zak Fang,* Pei Sun and Hongtao Wang. Powder metallurgy (PM) has been regarded as a viable and promising approach for ...
COMMUNICATION
DOI: 10.1002/adem.201100269
Hydrogen Sintering of Titanium to Produce High Density Fine Grain Titanium Alloys** By Zhigang Zak Fang,* Pei Sun and Hongtao Wang
Titanium powder is typically sintered in high vacuum to achieve high density and low oxygen. Sintered materials usually have coarse grain size or coarse lamellar structure if it is the Ti–6Al–4V alloy. A novel process—hydrogen sintering and phase transformation (HSPT)—for sintering Ti in hydrogen is studied in this paper that can produce near-fully dense (>99%CP-Ti, >98%Ti–6Al–4V) Ti materials with very fine grain size (
