Beta ti alloys with low young's modulus

Tomomichi Ozaki; Hiroaki Matsumoto; Sadao Watanabe; Shuji Hanada

doi:10.2320/matertrans.45.2776

Beta ti alloys with low young's modulus

Tomomichi Ozaki, Hiroaki Matsumoto, Sadao Watanabe, Shuji Hanada

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-review

208 Citations (Scopus)

Abstract

Composition dependence of Young's modulus in β Ti-V and Ti-Nb binary alloys and Sn-added ternary alloys quenched from β phase region was investigated at room temperature in relation to the stability of β phase. A minimum of Young's modulus in the binary alloys appears at such a composition that athermal ω phase transformation is almost completely suppressed. Formation of isothermal ω phase by aging after quenching increases Young's modulus. Sn addition to the binary alloys suppresses or retards ω transformation, thereby decreasing Young's modulus. Optimization of alloy composition in Ti-Nb-Sn alloys leads to low Young's modulus of about 40 GPa. The composition dependence of Young's modulus obtained experimentally in this study can be qualitatively explained by the theoretical discrete-variational Xα cluster method.

Original language	English
Pages (from-to)	2776-2779
Number of pages	4
Journal	Materials Transactions
Volume	45
Issue number	8
DOIs	https://doi.org/10.2320/matertrans.45.2776
Publication status	Published - 2004 Aug

Keywords

Beta titanium alloy
Omega phase
Tin addition
Titanium-niobium alloy
Titanium-vanadium alloy
Young's modulus

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "Composition dependence of Young's modulus in β Ti-V and Ti-Nb binary alloys and Sn-added ternary alloys quenched from β phase region was investigated at room temperature in relation to the stability of β phase. A minimum of Young's modulus in the binary alloys appears at such a composition that athermal ω phase transformation is almost completely suppressed. Formation of isothermal ω phase by aging after quenching increases Young's modulus. Sn addition to the binary alloys suppresses or retards ω transformation, thereby decreasing Young's modulus. Optimization of alloy composition in Ti-Nb-Sn alloys leads to low Young's modulus of about 40 GPa. The composition dependence of Young's modulus obtained experimentally in this study can be qualitatively explained by the theoretical discrete-variational Xα cluster method.",

keywords = "Beta titanium alloy, Omega phase, Tin addition, Titanium-niobium alloy, Titanium-vanadium alloy, Young's modulus",

author = "Tomomichi Ozaki and Hiroaki Matsumoto and Sadao Watanabe and Shuji Hanada",

year = "2004",

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doi = "10.2320/matertrans.45.2776",

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pages = "2776--2779",

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T1 - Beta ti alloys with low young's modulus

AU - Ozaki, Tomomichi

AU - Matsumoto, Hiroaki

AU - Watanabe, Sadao

AU - Hanada, Shuji

PY - 2004/8

Y1 - 2004/8

N2 - Composition dependence of Young's modulus in β Ti-V and Ti-Nb binary alloys and Sn-added ternary alloys quenched from β phase region was investigated at room temperature in relation to the stability of β phase. A minimum of Young's modulus in the binary alloys appears at such a composition that athermal ω phase transformation is almost completely suppressed. Formation of isothermal ω phase by aging after quenching increases Young's modulus. Sn addition to the binary alloys suppresses or retards ω transformation, thereby decreasing Young's modulus. Optimization of alloy composition in Ti-Nb-Sn alloys leads to low Young's modulus of about 40 GPa. The composition dependence of Young's modulus obtained experimentally in this study can be qualitatively explained by the theoretical discrete-variational Xα cluster method.

AB - Composition dependence of Young's modulus in β Ti-V and Ti-Nb binary alloys and Sn-added ternary alloys quenched from β phase region was investigated at room temperature in relation to the stability of β phase. A minimum of Young's modulus in the binary alloys appears at such a composition that athermal ω phase transformation is almost completely suppressed. Formation of isothermal ω phase by aging after quenching increases Young's modulus. Sn addition to the binary alloys suppresses or retards ω transformation, thereby decreasing Young's modulus. Optimization of alloy composition in Ti-Nb-Sn alloys leads to low Young's modulus of about 40 GPa. The composition dependence of Young's modulus obtained experimentally in this study can be qualitatively explained by the theoretical discrete-variational Xα cluster method.

KW - Beta titanium alloy

KW - Omega phase

KW - Tin addition

KW - Titanium-niobium alloy

KW - Titanium-vanadium alloy

KW - Young's modulus

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Beta ti alloys with low young's modulus

Abstract

Keywords

ASJC Scopus subject areas

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