Influence of Cu on microstructure and wear resistance of TiC/TiB/TiN reinforced composite coating fabricated by laser cladding

被引：65

作者：

Li Jianing ^{[1
]}

Chen Chuanzhong ^{[1
]}

He Qingshan ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 133卷 / 2-3期

关键词：

Surfaces; Coatings; Hardness; Surface properties; IN-SITU; SURFACE MODIFICATION; GRAIN-REFINEMENT; ALLOY; BEHAVIOR;

D O I：

10.1016/j.matchemphys.2012.01.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The TiC/TiB/TiN reinforced composite coating was prepared by laser cladding of the Fe/Al + B4C/SiC pre-placed powders on Ti-6Al-4V alloy in the nitrogen protective atmosphere. Nevertheless, the pores and micro-crack were present in this coating. Through the experiment, it was found that Cu can be used to improve the microstructure and wear resistance of this composite coating, and Ti3CuN/Ti2Cu/CuAl were produced. Due to the action of Cu, the crystals had enough time to grow up, and the wear volume loss of the composite coating was approximately 7-8 times less than that of the Ti-6Al-4V substrate. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：741 / 745

页数：5

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