Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys

Nobuhito Sakaguchi; Mitsuo Niinomi; Toshikazu Akahori; Junji Takeda; Hiroyuki Toda

doi:10.1016/j.msec.2004.12.014

Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys

Nobuhito Sakaguchi, Mitsuo Niinomi, Toshikazu Akahori, Junji Takeda, Hiroyuki Toda

Research output: Contribution to journal › Conference article › peer-review

95 Citations (Scopus)

Abstract

Ti-Nb-Ta-Zr system alloys are receiving more attention for biomedical material component applications. However, the deformation behavior of the Ti-Nb-Ta-Zr system has not been evaluated to date. Therefore, the deformation behavior of Ti-Nb-Ta-Zr alloys with different Nb contents was investigated in this study. The behaviors of loading-unloading stress-strain curves of Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr air-cooled after final heating of the manufacturing process are similar to that obtained in metastable β type titanium alloys that have the shape memory effect. Therefore, the shape memory effect was expected in Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr alloys. The elastic deformation of Ti-30Nb-10Ta-5Zr disobeyed Hooke's law. However, stress or strain-induced martensite (SIM) is not observed on the loading-unloading stress-strain curve. The deformation mechanism of Ti-25Nb-10Ta-5Zr changes with varying its microstructure. In Ti-25Nb-10Ta-5Zr air-cooled after final heating, the microstructure consisted of an ω phase in a β phase. The stress for inducing martensite in a β phase, σ_M, was nearly equal to the yielding stress, σ_y. Therefore, stress-induced martensitic transformation and movement of dislocations occurred together. In Ti-25Nb-10Ta-5Zr water-quenched after final heating of the manufacturing process, the microstructure consisted of a single β phase, where σ_M is lower than σ_y. Therefore, stress-induced martensitic transformation occurred before yielding.

Original language	English
Pages (from-to)	363-369
Number of pages	7
Journal	Materials Science and Engineering C
Volume	25
Issue number	3
DOIs	https://doi.org/10.1016/j.msec.2004.12.014
Publication status	Published - May 1 2005
Externally published	Yes
Event	Selected Papers Presented at the Materials Science and Technology 2004 Meeting: Titanium for Biomedical, Dental, and Healthcare - Duration: Sept 26 2004 → Sept 29 2004

All Science Journal Classification (ASJC) codes

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

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10.1016/j.msec.2004.12.014

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title = "Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys",

abstract = "Ti-Nb-Ta-Zr system alloys are receiving more attention for biomedical material component applications. However, the deformation behavior of the Ti-Nb-Ta-Zr system has not been evaluated to date. Therefore, the deformation behavior of Ti-Nb-Ta-Zr alloys with different Nb contents was investigated in this study. The behaviors of loading-unloading stress-strain curves of Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr air-cooled after final heating of the manufacturing process are similar to that obtained in metastable β type titanium alloys that have the shape memory effect. Therefore, the shape memory effect was expected in Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr alloys. The elastic deformation of Ti-30Nb-10Ta-5Zr disobeyed Hooke's law. However, stress or strain-induced martensite (SIM) is not observed on the loading-unloading stress-strain curve. The deformation mechanism of Ti-25Nb-10Ta-5Zr changes with varying its microstructure. In Ti-25Nb-10Ta-5Zr air-cooled after final heating, the microstructure consisted of an ω phase in a β phase. The stress for inducing martensite in a β phase, σM, was nearly equal to the yielding stress, σy. Therefore, stress-induced martensitic transformation and movement of dislocations occurred together. In Ti-25Nb-10Ta-5Zr water-quenched after final heating of the manufacturing process, the microstructure consisted of a single β phase, where σM is lower than σy. Therefore, stress-induced martensitic transformation occurred before yielding.",

author = "Nobuhito Sakaguchi and Mitsuo Niinomi and Toshikazu Akahori and Junji Takeda and Hiroyuki Toda",

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T1 - Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys

AU - Sakaguchi, Nobuhito

AU - Niinomi, Mitsuo

AU - Akahori, Toshikazu

AU - Takeda, Junji

AU - Toda, Hiroyuki

PY - 2005/5/1

Y1 - 2005/5/1

N2 - Ti-Nb-Ta-Zr system alloys are receiving more attention for biomedical material component applications. However, the deformation behavior of the Ti-Nb-Ta-Zr system has not been evaluated to date. Therefore, the deformation behavior of Ti-Nb-Ta-Zr alloys with different Nb contents was investigated in this study. The behaviors of loading-unloading stress-strain curves of Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr air-cooled after final heating of the manufacturing process are similar to that obtained in metastable β type titanium alloys that have the shape memory effect. Therefore, the shape memory effect was expected in Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr alloys. The elastic deformation of Ti-30Nb-10Ta-5Zr disobeyed Hooke's law. However, stress or strain-induced martensite (SIM) is not observed on the loading-unloading stress-strain curve. The deformation mechanism of Ti-25Nb-10Ta-5Zr changes with varying its microstructure. In Ti-25Nb-10Ta-5Zr air-cooled after final heating, the microstructure consisted of an ω phase in a β phase. The stress for inducing martensite in a β phase, σM, was nearly equal to the yielding stress, σy. Therefore, stress-induced martensitic transformation and movement of dislocations occurred together. In Ti-25Nb-10Ta-5Zr water-quenched after final heating of the manufacturing process, the microstructure consisted of a single β phase, where σM is lower than σy. Therefore, stress-induced martensitic transformation occurred before yielding.

AB - Ti-Nb-Ta-Zr system alloys are receiving more attention for biomedical material component applications. However, the deformation behavior of the Ti-Nb-Ta-Zr system has not been evaluated to date. Therefore, the deformation behavior of Ti-Nb-Ta-Zr alloys with different Nb contents was investigated in this study. The behaviors of loading-unloading stress-strain curves of Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr air-cooled after final heating of the manufacturing process are similar to that obtained in metastable β type titanium alloys that have the shape memory effect. Therefore, the shape memory effect was expected in Ti-20Nb-10Ta-5Zr and Ti-25Nb-10Ta-5Zr alloys. The elastic deformation of Ti-30Nb-10Ta-5Zr disobeyed Hooke's law. However, stress or strain-induced martensite (SIM) is not observed on the loading-unloading stress-strain curve. The deformation mechanism of Ti-25Nb-10Ta-5Zr changes with varying its microstructure. In Ti-25Nb-10Ta-5Zr air-cooled after final heating, the microstructure consisted of an ω phase in a β phase. The stress for inducing martensite in a β phase, σM, was nearly equal to the yielding stress, σy. Therefore, stress-induced martensitic transformation and movement of dislocations occurred together. In Ti-25Nb-10Ta-5Zr water-quenched after final heating of the manufacturing process, the microstructure consisted of a single β phase, where σM is lower than σy. Therefore, stress-induced martensitic transformation occurred before yielding.

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VL - 25

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EP - 369

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

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T2 - Selected Papers Presented at the Materials Science and Technology 2004 Meeting: Titanium for Biomedical, Dental, and Healthcare

Y2 - 26 September 2004 through 29 September 2004

ER -

Relationships between tensile deformation behavior and microstructure in Ti-Nb-Ta-Zr system alloys

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