TY - GEN
T1 - Beneficial effects of hydrogen as a temporary alloying element in titanium alloys
T2 - International Conference on Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions
AU - Froes, F. H.
AU - Eliezer, D.
AU - Senkov, O. N.
AU - Qazi, J. I.
PY - 2003/12/1
Y1 - 2003/12/1
N2 - Use of hydrogen as a temporary alloying element in titanium alloys (thermohydrogen processing, THP) is an attractive method for enhancing processability including working, machining, powder production, sintering, compaction, etc., and also for controlling microstructure and thereby improving final mechanical properties. In the case of near net shapes it is the only method for significant microstructural modification. In the present paper, the status of the THP technique and applications to titanium alloys is presented. The effect of hydrogen alloying on the phase composition, formation of metastable phases and kinetics of the phase transformations is described. The effect of hydrogen on hot workability, composite- and powder-metallurgy-product processing, and microstructure modification of cast-and-wrought and cast conventional alloys and intermetallics, including production of nanocrystalline structures, is reviewed.
AB - Use of hydrogen as a temporary alloying element in titanium alloys (thermohydrogen processing, THP) is an attractive method for enhancing processability including working, machining, powder production, sintering, compaction, etc., and also for controlling microstructure and thereby improving final mechanical properties. In the case of near net shapes it is the only method for significant microstructural modification. In the present paper, the status of the THP technique and applications to titanium alloys is presented. The effect of hydrogen alloying on the phase composition, formation of metastable phases and kinetics of the phase transformations is described. The effect of hydrogen on hot workability, composite- and powder-metallurgy-product processing, and microstructure modification of cast-and-wrought and cast conventional alloys and intermetallics, including production of nanocrystalline structures, is reviewed.
UR - http://www.scopus.com/inward/record.url?scp=23844530360&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:23844530360
SN - 0873395018
SN - 9780873395014
T3 - Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions - Proc. of the International Conference on Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions
SP - 301
EP - 313
BT - Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions - Proc. of the International Conference on Hydrogen Effects on Material Behaviour and Corrosion Deformation Interactions
A2 - Moody, N.R.
A2 - Thompson, A.W.
A2 - Ricker, R.E.
A2 - Was, G.S.
A2 - Jones, R.H.
Y2 - 22 September 2002 through 26 September 2002
ER -