Phase composition, microstructure, and mechanical properties of porous Ti-Nb-Zr alloys prepared by a two-step foaming powder metallurgy method

被引：76

作者：

Rao, X.

Chu, C. L. ^{[1
]}

Zheng, Y. Y.

机构：

[1] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2014年 / 34卷

关键词：

Titanium alloys; Powder metallurgy; Porous materials; Mechanical properties; Fracture; BEHAVIOR; TITANIUM; NITI; HARDNESS;

D O I：

10.1016/j.jmbbm.2014.02.001

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Porous Ti-Nb-Zr alloys with different porosities from 6.06 to 62.8% are prepared by a two-step foaming powder metallurgy method using TiH2, Nb, and Zr powders together with 0 to 50 wt% of NH4HCO3. The effects of the amounts of Nb and Zr as well as the sintering temperature (1473 to 1673 K) on their phase composition, porosity, morphology, and mechanical characteristics are investigated. By controlling the porosity, Nb and Zr concentrations as well as the sintering temperature, porous Ti-Nb-Zr alloys with different mechanical properties can be obtained, for example, the hardness between 290 and 63 HV, the compressive strength between 1530.5 and 73.4 MPa, and the elastic modulus between 10.8 and 1.2 GPa. The mechanical properties of the sintered porous Ti-Nb-Zr alloys can be tailored to match different requirements for the human bones and are thus potentially useful in the hard tissue implants. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：27 / 36

页数：10

共 36 条

[11]

Dong Xian-juan, 2010, NONFERROUS MET SOC C, V20, P2259

[12] Characterization of Ti-6Al-4V alloy foams synthesized by space holder technique [J].

Esen, Ziya ;

Bor, Sakir .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (7-8) :3200-3209

[13] Effect of thermomechanical processing on evolution of various phases in Ti-Nb-Zr alloys [J].

Geetha, M ;

Singh, AK ;

Gogia, AK ;

Asokamani, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 384 (1-2) :131-144

[14] 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

[15]

Gibson L. J., 1997, CELLULAR SOLIDS STRU, V2nd ed

[16] THE MECHANICAL-BEHAVIOR OF CANCELLOUS BONE [J].

GIBSON, LJ .

JOURNAL OF BIOMECHANICS, 1985, 18 (05) :317-&

[17] Elastic modulus of sintered porous Ti-Si-Zr, using activation by Ti-Si mechanically alloyed powder and TiH2 powder [J].

Goi, K. L. S. ;

Butler, D. L. ;

Jarfors, A. E. W. ;

Yong, J. M. S. ;

Lim, D. C. S. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 475 (1-2) :45-51

[18] Synthesis and bioactivity of porous Ti alloy prepared by foaming with TiH2 [J].

Gu, Y. W. ;

Yong, M. S. ;

Tay, B. Y. ;

Lim, C. S. .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2009, 29 (05) :1515-1520

[19] Compression testing of a sintered Ti6Al4V powder compact for biomedical applications [J].

Guden, M ;

Celik, E ;

Akar, E ;

Cetiner, S .

MATERIALS CHARACTERIZATION, 2005, 54 (4-5) :399-408

[20] Porous titanium materials with entangled wire structure for load-bearing biomedical applications [J].

He, Guo ;

Liu, Ping ;

Tan, Qingbiao .

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2012, 5 (01) :16-31

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