Development of titanium boride (TiB) dispersed titanium (Ti) matrix composite by direct laser cladding

被引：55

作者：

DuttaMajumdar, Jyotsna ^{[1
]}

Li, Lin ^{[2
]}

机构：

[1] IIIT Kharagpur, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

[2] Univ Manchester, Sch Mech Aero & Civil Engg, Manchester M13 9PL, Lancs, England

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 09期

关键词：

Laser cladding; Composite; Hardness; Young's modulus; MICROSTRUCTURE;

D O I：

10.1016/j.matlet.2009.12.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study aims at development of TiB dispersed alpha-Ti matrix composite by laser melting of Ti-2 wt.% B alloy powder (of particle size ranging from 50-100 mu m) using a high power diode laser with argon shroud and depositing the molten alloy on a Ti-6Al-4 V substrate in a layer by layer fashion (up to a maximum of 5 layers were built). Followed by direct laser cladding, the characteristics and mechanical properties of the clad layer were investigated in details. Laser cladding led to formation of TiB dispersed a-Ti matrix composite with an average microhardness of 290 VHN to 500 VHN for different conditions of lasing. The average Young's modulus was considerably improved to 155-165 GPa. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1010 / 1012

页数：3

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