Mechanical Properties of Ti-Cr-Sn-Zr Alloys with Low Young’s Modulus

Yonosuke Murayama; Hiromasa Sakashita; Hisamichi Kimura; Akihiko Chiba

doi:10.4028/www.scientific.net/MSF.706-709.553

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HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Mechanical Properties of Ti-Cr-Sn-Zr Alloys with...

Mechanical Properties of Ti-Cr-Sn-Zr Alloys with Low Young’s Modulus

Abstract:

This work investigates the mechanical properties of Ti-Cr-Sn-Zr alloys containing large amount of Zr. We focuses on the effect of the varying alloy composition on the microstructure, the Young’s modulus, the deformation mechanism and the deformation behavior. Ti-Cr-Sn-Zr alloys show much low Young’s modulus in the narrow composition range for Cr but wide for Zr. The Young’s modulus of Ti-2Cr-6Sn-xZr (x=5~60mass%) alloy decreases with increasing Zr and shows the minimum value of 41GPa in Ti-2Cr-6Sn-45Zr alloy. The alloys with low Young’s modulus consist in meta-stable β phase. The composition of the meta-stable β phase is close to the transition where the quenched microstructure transits from martensite to meta-stable β phase. Ti-2Cr-6Sn-45Zr alloy with lowest Young’s modulus show the super-elastic property.

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Materials Science Forum (Volumes 706-709)

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553-556

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https://doi.org/10.4028/www.scientific.net/MSF.706-709.553

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Online since:

January 2012

Authors:

Yonosuke Murayama, Hiromasa Sakashita, Hisamichi Kimura, Akihiko Chiba

Keywords:

Martensite, Mechanical Property, Meta-Stable β Titanium, Super-Elasticity, Young's Modulus

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