Microstructure regulation of titanium-oxygen alloy with high strength and excellent ductility for biomedical applications

Zeyun Cai

doi:10.1016/j.intermet.2022.107648

Microstructure regulation of titanium-oxygen alloy with high strength and excellent ductility for biomedical applications

2022-09-01

6

PRE

AI

Z

Zeyun Cai

J

Jiayin Chen

Z

Zhen Zhang

K

Kun Li

X

Xinxin Yang

G

Guoqiang Xie *

DOI：10.1016/j.intermet.2022.107648

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Abstract

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Oxygen solid solution reinforced Ti-O alloys with high strengths and good ductility were designed and synthesized via mechanical milling and spark plasma sintering (SPS) processes. The grain size and dispersion state of the Ti-O alloys were optimized by regulating the milling time of the composite powders. Outstanding properties were achieved by 4 h milling with a yield strength of 1082 MPa, 100% higher than that of commercially pure titanium (CP-Ti). According to the quantified results of the strengthening mechanism, fine grains are responsible for the balance of superior strength and ductility of the Ti-O alloy.

Keywords:

Ti -O alloy

Yield strength

Ductility

Solid solution strengthening

Grain refinement

Biocompatibility

Microstructure regulation of titanium-oxygen alloy with high strength and excellent ductility for biomedical applications

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