Effect of Oxygen on Phase Precipitation and Mechanical Functionality in Ti-29Nb-13Ta-4.6Zr

Mitsuo Niinomi; Masaaki Nakai; Toshikazu Akahori; Harumi Tsutsumi

doi:10.4028/www.scientific.net/KEM.436.179

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Microstructure and Mechanical Properties of α’ Martensite Type Ti-V-Al Alloy after Cold- or Hot Working Process
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Effect of Oxygen on Phase Precipitation and Mechanical Functionality in Ti-29Nb-13Ta-4.6Zr
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 436Effect of Oxygen on Phase Precipitation and...

Effect of Oxygen on Phase Precipitation and Mechanical Functionality in Ti-29Nb-13Ta-4.6Zr

Abstract:

Oxygen plays very important roles in titanium and its alloys. Solute oxygen in titanium alloys leads to solid solution strengthening, suppressing the precipitation of the athermal omegaor orthorhombic martensite phase, enhancing the formation of the -case, etc. The proper using oxygen is effective to improve the mechanical functionalities of titanium alloys. However, the role of oxygen in titanium alloys is still not well understood. Therefore, the effect of oxygen on the mechanical functionalities such as strength-ductility balance, hardness, and Young’s modulus in Ti-29nb-13Ta-4.6Zr was investigated.

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Periodical:

Key Engineering Materials (Volume 436)

Pages:

179-184

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.436.179

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Online since:

May 2010

Authors:

Mitsuo Niinomi, Masaaki Nakai, Toshikazu Akahori, Harumi Tsutsumi

Keywords:

Mechanical Functionality, Oxygen, Phase Stability, Ti-29Nb-13Ta-4.6Zr, Ω Phase

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References

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