Synthesis of Ti-Sn-Nb alloy by powder metallurgy

被引：45

作者：

Nouri, Alireza ^{[1
]}

Chen, Xiaobo ^{[1
]}

Li, Yuncang ^{[1
]}

Yamada, Yasuo ^{[2
]}

Hodgson, Peter D. ^{[1
]}

Wen, Cui'e ^{[1
]}

机构：

[1] Deakin Univ, Ctr Mat & Fibre Innovat, Geelong, Vic 3217, Australia

[2] Natl Inst Adv Ind Sci & Technol, Mat Res Inst Sustainable Dev, Nagoya, Aichi 4638560, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 485卷 / 1-2期

关键词：

mechanical alloying; titanium alloys; microstructure; powder metallurgy; metallic biomaterials;

D O I：

10.1016/j.msea.2007.10.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructural evolution and characteristics of the Ti-16Sn-4Nb powder particles and bulk alloys sintered from the powders ball-milled for various periods of time were studied. Results indicated that ball milling to 8 h led to the development of a supersaturated hcp alpha-Ti and partial amorphous phase due to the solid solution of Sn and Nb into Ti lattice. The bulk Ti-16Sn-4Nb alloy made from the powders ball milled for a short time, up to 2 h, exhibited a primary alpha and a Widmanstatten structure consisting of interlaced secondary alpha and beta. With an increase in ball milling time up to 10h, the microstructure evolved into a fine beta phase dispersed homogeneously within a phase matrix. The microhardness values of the bulk alloy in both alpha- and beta-phases increased with the increasing of the ball milling time and reached a plateau value at 8 h and longer, i.e. 687 and 550 HV for alpha- and beta-phases, respectively. Likewise, the microhardness of the alpha phases was always higher than that of the P phases in the bulk alloys made from the powders ball milled for the same milling time. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：562 / 570

页数：9

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