Mechanical properties of porous Ti-15Mo-5Zr-3Al compacts prepared by powder sintering

被引：50

作者：

Nomura, N ^{[1
]}

Kohama, T

Oh, IH

Hanada, S

Chiba, A

Kanehira, M

Sasaki, K

机构：

[1] Iwate Univ, Dept Welfare Engn, Morioka, Iwate 0208551, Japan

[2] Tohoku Univ, Grad Sch Mat Sci, Sendai, Miyagi 9808579, Japan

[3] Korea Inst Ind Technol, Mat & Parts Team, Kwangju 506824, South Korea

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[5] Tohoku Univ, Grad Sch Dent, Sendai, Miyagi 9808575, Japan

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2005年 / 25卷 / 03期

关键词：

porous titanium alloy; PREP; hot-pressing; Young's modulus; yield strength;

D O I：

10.1016/j.msec.2005.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Porous Ti alloy compacts were fabricated and their microstructure and mechanical properties were investigated in this study. Ti alloy powders were atomized from Ti-15Mo-5Zr-3Al (wt.%) bar using the plasma rotating electrode process (PREP) in an Ar atmosphere. These alloy powders were sintered under 1-30 MPa at 1223 K for 7.2 ks by hot-pressing (HP). These compacts were solution treated at 1223 K for 1.2 ks, and then quenched into iced water (STQ). X-ray diffraction analysis revealed that a small amount of alpha phase appeared in the beta phase of the HP compacts, while not in the STQ compacts. Young's modulus of STQ compacts is lower than that of HP compacts. It was found that the strength of porous Ti-15Mo-5Zr-3Al is higher than those of porous pure Ti and human cortical bone, as compared in the range from 10 to 30 GPa of Young's modulus for human bone. (c) 2005 Elsevier B.V All rights reserved.

引用

页码：330 / 335

页数：6

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