Microstructure and Mechanical Properties of Cast Ti25Nb3Mo3Zr2Sn Alloy

被引：2

作者：

Wang, Gui ^{[1
]}

Kent, Damon ^{[1
]}

Paladugu, Mohanchand ^{[1
]}

Yu, Zhentao ^{[2
]}

Dargusch, Matthew S. ^{[1
]}

机构：

[1] Univ Queensland, Sch Engn, CAST CRC DMTC, Brisbane, Qld 4072, Australia

[2] Northwest Inst Nonferrous Met Res, Biomat Res Ctr, Xian 710016, Peoples R China

来源：

MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷

关键词：

beta titanium alloy; casting; mechanical properties; precipitation; BETA-TITANIUM ALLOYS; BIOMEDICAL APPLICATIONS; DESIGN; TA;

D O I：

10.4028/www.scientific.net/AMR.97-101.488

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and mechanical properties of a cast near beta type titanium alloy, Ti-25Nb-3Zr-3Mo-2Sn, have been investigated in this paper. In the as cast condition, the alloy possesses coarse, equiaxed beta grains and Transmission Electron Microscopy(TEM) observations showed the omega phase is also present in this condition. The alloy in the as cast condition has low strength and is highly ductile. Direct ageing at 450 degrees C for 4 hours leads to the formation of a large number of fine scale alpha phase precipitates. The alloy in the aged condition is less ductile but exhibits significantly enhanced strength.

引用

页码：488 / +

页数：2

共 9 条

[1] Strengthening mechanisms in Ti-Nb-Zr-Ta and Ti-Mo-Zr-Fe orthopaedic alloys [J].

Banerjee, R ;

Nag, S ;

Stechschulte, J ;

Fraser, HL .

BIOMATERIALS, 2004, 25 (17) :3413-3419

[2] Ti based biomaterials, the ultimate choice for orthopaedic implants - A review [J].

Geetha, M. ;

Singh, A. K. ;

Asokamani, R. ;

Gogia, A. K. .

PROGRESS IN MATERIALS SCIENCE, 2009, 54 (03) :397-425

[3] Ti alloy design strategy for biomedical applications [J].

He, G ;

Hagiwara, M .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2006, 26 (01) :14-19

[4] ω-Assisted nucleation and growth of α precipitates in the Ti-5Al-5Mo-5V-3Cr-0.5Fe β titanium alloy [J].

Nag, S. ;

Banerjee, R. ;

Srinivasan, R. ;

Hwang, J. Y. ;

Harper, M. ;

Fraser, H. L. .

ACTA MATERIALIA, 2009, 57 (07) :2136-2147

[5] Mechanical biocompatibilities of titanium alloys for biomedical applications [J].

Niinomi, Mitsuo .

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2008, 1 (01) :30-42

[6] Recent research and development in titanium alloys for biomedical applications and healthcare goods [J].

Niinomi, Mitsuo .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2003, 4 (05) :445-454

[7] Theory-guided bottom-up design of β-titanium alloys as biomaterials based on first principles calculations:: Theory and experiments [J].

Raabe, D. ;

Sander, B. ;

Friak, M. ;

Ma, D. ;

Neugebauer, J. .

ACTA MATERIALIA, 2007, 55 (13) :4475-4487

[8] Development of Biomedical Near β Titanium Alloys [J].

Yu, Zhentao ;

Wang, Gui ;

Ma, Xiqun ;

Dargusch, Matthew S. ;

Han, Jianye ;

Yu, Sen .

LIGHT METALS TECHNOLOGY 2009, 2009, 618-619 :303-+

[9] Changes in mechanical properties of Ti alloys in relation to alloying additions of Ta and Hf [J].

Zhou, Ying-Long ;

Niinomi, Mitsuo ;

Akahori, Toshikazu .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 483-84 :153-156

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