Metastable β-type Ti-30Nb-1Mo-4Sn Alloy with Ultralow Young's Modulus and High Strength

被引：18

作者：

Hu, Liang ^{[1
]}

Guo, Shun ^{[1
]}

Meng, Qingkun ^{[1
]}

Zhao, Xinqing ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 02期

基金：

中国国家自然科学基金;

关键词：

MECHANICAL-PROPERTIES; BEHAVIOR;

D O I：

10.1007/s11661-013-2134-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of thermo-mechanical treatment on the mechanical properties of a novel metastable beta-type Ti-30Nb-1Mo-4Sn (wt pct) alloy has been investigated. The solution-treated alloy consists of beta and alpha '' phases and exhibits a two-stage yielding with a low yield stress (around 100 MPa). After cold rolling at a reduction of 87.5 pct and subsequent annealing treat at 623 K (350 degrees C) for 30 minutes, a fine microstructure with nano-sized alpha precipitates distributed in small beta grains as well as high density of dislocations was obtained to achieve a yield strength of 954 MPa and an ultimate tensile strength of 999 MPa. With low stability of beta phase and small volume fraction of a precipitates, the annealed specimen exhibits a low Young's modulus of 45 GPa. Such an excellent combination of the low elastic modulus and high strength in mechanical properties indicates a great potential candidate for biomedical applications. (C) The Minerals, Metals & Materials Society and ASM International 2013

引用

页码：547 / 550

页数：4

共 23 条

[1] Interfacial defects in Ti-Nb shape memory alloys [J].

Chai, Y. W. ;

Kim, H. Y. ;

Hosoda, H. ;

Miyazaki, S. .

ACTA MATERIALIA, 2008, 56 (13) :3088-3097

[2]

COLLINGS E.W., 1986, APPL SUPERCOND, V1, P192

[3]

COLLINS EW, 1984, PHYSICAL METALLURGY, P115

[4] 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

[5] Aging response of the Young's modulus and mechanical properties of Ti-29Nb-13Ta-4.6Zr for biomedical applications [J].

Hao, YL ;

Niinomi, M ;

Kuroda, D ;

Fukunaga, K ;

Zhou, YL ;

Yang, R ;

Suzuki, A .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (04) :1007-1012

[6] Young's modulus and mechanical properties of Ti-29Nb-13Ta-4.6Zr in relation to α" martensite [J].

Hao, YL ;

Niinomi, M ;

Kuroda, D ;

Fukunaga, K ;

Zhou, YL ;

Yang, R ;

Suzuki, A .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (10) :3137-3144

[7] Phase-stability dependence of plastic deformation behavior in Ti-Nb-Ta-Zr-O alloys [J].

Hwang, J ;

Kuramoto, S ;

Furuta, T ;

Nishino, K ;

Saito, T .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2005, 14 (06) :747-754

[8] First-principles calculations for development of low elastic modulus Ti alloys [J].

Ikehata, H ;

Nagasako, N ;

Furuta, T ;

Fukumoto, A ;

Miwa, K ;

Saito, T .

PHYSICAL REVIEW B, 2004, 70 (17) :1-8

[9] Mechanical properties of Ti-Nb biomedical shape memory alloys containing Ge or Ga [J].

Inamura, T ;

Fukui, Y ;

Hosoda, H ;

Wakashima, K ;

Miyazaki, S .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2005, 25 (03) :426-432

[10] Mechanical properties and shape memory behavior of ti-nb alloys [J].

Kim, HY ;

Satoru, H ;

Kim, JI ;

Hosoda, H ;

Miyazaki, S .

MATERIALS TRANSACTIONS, 2004, 45 (07) :2443-2448

← 1 2 3 →