TY - GEN
T1 - Phase stability and mechanical properties of Ti-Cr based alloys with low Young's modulus
AU - Murayama, Yonosuke
AU - Sasaki, Shuichi
AU - Kimura, Hisamichi
AU - Chiba, Akihiko
PY - 2010
Y1 - 2010
N2 - This work investigates the mechanical properties of Ti-Cr system alloys and focuses on the microstructure, the Young's modulus, the deformation mechanism and the deformation behaviour observed in various alloy compositions. The addition of Al to the Ti-Cr system alloys greatly decreases the Young's modulus. Addition of Al, Sn and Zr to various Ti-Cr alloys suppresses the athermal ω phase that forms during quenching from β field. A Ti-Cr system alloy with low Young's modulus was obtained in suitable compositional combination of Cr, Zr and Sn or Al. The alloys with the composition where the quenched microstructure transits from martensite to meta-stable β phase show low Young's modulus. In addition, the alloys show two-step yielding due to stress-induced transformation.
AB - This work investigates the mechanical properties of Ti-Cr system alloys and focuses on the microstructure, the Young's modulus, the deformation mechanism and the deformation behaviour observed in various alloy compositions. The addition of Al to the Ti-Cr system alloys greatly decreases the Young's modulus. Addition of Al, Sn and Zr to various Ti-Cr alloys suppresses the athermal ω phase that forms during quenching from β field. A Ti-Cr system alloy with low Young's modulus was obtained in suitable compositional combination of Cr, Zr and Sn or Al. The alloys with the composition where the quenched microstructure transits from martensite to meta-stable β phase show low Young's modulus. In addition, the alloys show two-step yielding due to stress-induced transformation.
KW - Martensite
KW - Mechanical properties
KW - Meta-stable β titanium
KW - Young's modulus
KW - ω phase
UR - http://www.scopus.com/inward/record.url?scp=77955489264&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955489264&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.654-656.2114
DO - 10.4028/www.scientific.net/MSF.654-656.2114
M3 - Conference contribution
AN - SCOPUS:77955489264
SN - 0878492550
SN - 9780878492558
T3 - Materials Science Forum
SP - 2114
EP - 2117
BT - PRICM7
PB - Trans Tech Publications Ltd
T2 - 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
Y2 - 2 August 2010 through 6 August 2010
ER -