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

被引：6

作者：

Cai, Zeyun ^{[1
]}

Chen, Jiayin ^{[1
]}

Zhang, Zhen ^{[1
]}

Li, Kun ^{[1
]}

Yang, Xinxin ^{[1
]}

Xie, Guoqiang ^{[1
,2
]}

机构：

[1] Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China

[2] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

INTERMETALLICS | 2022年 / 148卷

基金：

中国国家自然科学基金;

关键词：

Ti -O alloy; Yield strength; Ductility; Solid solution strengthening; Grain refinement; Biocompatibility; PURE TITANIUM; EVOLUTION;

D O I：

10.1016/j.intermet.2022.107648

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：7

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