Microstructure and wear resistance of TaC reinforced Ni-based coating by laser cladding

被引：98
作者：
Chao, Ming-Ju [1 ,2 ]
Wang, Wen-Li [1 ,2 ]
Liang, Er-Jun [1 ,2 ]
Ouyang, Dongxun [1 ,2 ]
机构：
[1] Zhengzhou Univ, Dept Phys, Zhengzhou, Peoples R China
[2] Zhengzhou Univ, Key Lab Mat Phys Minist Educ, Zhengzhou, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2008年 / 202卷 / 10期
关键词：
laser cladding; in situ synthesis; TaC; microstructure; wear resistance;
D O I：
10.1016/j.surfcoat.2007.08.021
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The in situ synthesized TaC particulate reinforced Ni-based composite coating was fabricated on a mild steel by laser cladding of powder mixture of Ni60 alloy powder with (Ta2O5+C)-doping. The microstructure and wear resistance of the TaC/Ni60 composite coating were investigated. It is shown that the coating is bonded metallurgically to the substrate and has a homogeneous fine microstructure containing both approximate cubic TaC particle and acicular chromium carbide uniformly dispersed in the dual phase matrix of gamma(Ni) solid solution and eutectic of Cr3C2, Fe2B with gamma(Ni). Compared to a Ni60 coating, the hardness of the TaC/Ni60 composite coating was enhanced by a factor of 1.38, could achieve a Vicker microhardness of Hv(0.3)1100. And the wear rate in a block on ring test against hardened steel was reduced by a factor of five. This is attributed to the presence of in situ synthesized TaC particles and their well distribution in the coating. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1918 / 1922
页数：5
相关论文
共 23 条
[1]   Preparation and characterization of in situ synthesized B4C particulate reinforced nickel composite coatings by laser cladding [J].
Chao, Ming-Ju ;
Niu, Xin ;
Yuan, Bin ;
Liang, Er-Jun ;
Wang, Dong-Sheng .
SURFACE & COATINGS TECHNOLOGY, 2006, 201 (3-4) :1102-1108
[2]   Effect of TiO2-doping on the microstructure and the wear properties of laser-clad nickel-based coatings [J].
Chao, MJ ;
Liang, EJ .
SURFACE & COATINGS TECHNOLOGY, 2004, 179 (2-3) :265-271
[3]   Eutectic MC carbide growth morphologies of a laser clad TiC/FeAl composite coating [J].
Chen, Y ;
Wang, HM .
MATERIALS LETTERS, 2005, 59 (28) :3699-3702
[4]   Microstructural characterization and microscopy analysis of laser cladding Stellite 12 and tungsten carbide [J].
Chiang, K. A. ;
Chen, Y. C. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 182 (1-3) :297-302
[5]   Cavitation erosion resistance of AISI 420 martensitic stainless steel laser-clad with nickel aluminide intermetallic composites and matrix composites with TiC reinforcement [J].
Duraiselvam, Muthukannan ;
Galun, Rolf ;
Wesling, Volker ;
Mordike, Barry L. ;
Reiter, Rolf ;
Oligmueller, Joerg .
SURFACE & COATINGS TECHNOLOGY, 2006, 201 (3-4) :1289-1295
[6]   Investigation on decomposition mechanism of tantalum ethylate precursor during formation of TaC on C/C composite material [J].
He, Hanwei ;
Zhou, Kechao ;
Xiong, Xiang ;
Huang, Baiyun .
MATERIALS LETTERS, 2006, 60 (28) :3409-3412
[7]   Microstructure of Al2O3 nanocrystalline/cobalt-based alloy composite coatings by laser deposition [J].
Li, Mingxi ;
He, Yizhu ;
Yuan, Xiaomin ;
Zhang, Shillong .
MATERIALS & DESIGN, 2006, 27 (10) :1114-1119
[8]   Effects of La2O3 on microstructure and wear properties of laser clad γ/Cr7C3/TiC composite coatings on TiAl intermatallic alloy [J].
Liu, Xiu-Bo ;
Yu, Rong-Li .
MATERIALS CHEMISTRY AND PHYSICS, 2007, 101 (2-3) :448-454
[9]   Laser induced reaction-synthesis of TiC+WC reinforced metal matrix composites coatings on Al 6061 [J].
Man, HC ;
Yang, YQ ;
Lee, WB .
SURFACE & COATINGS TECHNOLOGY, 2004, 185 (01) :74-80
[10]   The effect of laser cladding on the corrosion resistance of magnesium ZK60/SiC composite [J].
Mei, Z ;
Guo, LF ;
Yue, TM .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2005, 161 (03) :462-466
123