Synthesis and characterization of FeCoNiCrCu high-entropy alloy coating by laser cladding

被引：253
作者：
Zhang, Hui [1 ,2 ]
Pan, Ye [1 ]
He, Yi-Zhu [2 ]
机构：
[1] Southeast Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Metall Mat, Nanjing 211189, Jiangshu, Peoples R China
[2] Anhui Univ Technol, Sch Mat Sci & Engn, Anhui Key Lab Mat Sci & Proc, Maanshan 243002, Anhui, Peoples R China
来源：
MATERIALS & DESIGN | 2011年 / 32卷 / 04期
关键词：
Coatings; Rapid solidification; Microstructure; MECHANICAL-PROPERTIES; COMPOSITE COATINGS; WEAR BEHAVIOR; MICROSTRUCTURE; MN; ELEMENTS;
D O I：
10.1016/j.matdes.2010.12.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influences of Si (1.2 mol.%), Mn (1.2 mol.%) and Mo (2.8 mol.%) additions on the microstructure, properties and coating quality of laser cladded FeCoNiCrCu high-entropy alloy coating have been investigated. The multi-component alloy coating is found to be a simple face-centered cubic (FCC) solid solution with less component segregation and high corrosion resistance, microhardness and softening resistance properties. For the coating without Si, Mn and Mo additions, the microstructure is mainly composed of columnar and equiaxed grains with uniformly distributed alloying elements. The microhardness reaches 375 HV0.5, which is about 50% higher than that of the same alloy prepared by arc melting technique. But the coating quality is very poor. While for the coating with Si, Mn and Mo additions, the coating quality is greatly improved, the microhardness increases to 450 HV0.5, but the microstructure transforms to dendrite due to a slightly increase in component segregation. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1910 / 1915
页数：6
相关论文
共 22 条
[1]   THEORY FOR THE TRAPPING OF DISORDER AND SOLUTE IN INTERMETALLIC PHASES BY RAPID SOLIDIFICATION [J].
BOETTINGER, WJ ;
AZIZ, MJ .
ACTA METALLURGICA, 1989, 37 (12) :3379-3391
[2]   Influence of substrate bias, deposition temperature and post-deposition annealing on the structure and properties of multi-principal-component (AlCrMoSiTi)N coatings [J].
Chang, Hui-Wen ;
Huang, Ping-Kang ;
Yeh, Jien-Wei ;
Davison, Andrew ;
Tsau, Chun-Huei ;
Yang, Chih-Chao .
SURFACE & COATINGS TECHNOLOGY, 2008, 202 (14) :3360-3366
[3]   Effect of iron content on wear behavior of AlCoCrFexMo0.5Ni high-entropy alloys [J].
Hsu, Chin-You ;
Sheu, Tsing-Shien ;
Yeh, Jien-Wei ;
Chen, Swe-Kai .
WEAR, 2010, 268 (5-6) :653-659
[4]   Effect of rare earth Y addition on the microstructure and mechanical properties of high entropy AlCoCrCuNiTi alloys [J].
Hu, Zhaohua ;
Zhan, Yongzhong ;
Zhang, Guanghua ;
She, Jia ;
Li, Chunhui .
MATERIALS & DESIGN, 2010, 31 (03) :1599-1602
[5]   Effects of Mn, Ti and V on the microstructure and properties of AlCrFeCoNiCu high entropy alloy [J].
Li, B. S. ;
Wang, Y. R. ;
Ren, M. X. ;
Yang, C. ;
Fu, H. Z. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 498 (1-2) :482-486
[6]   Effect of alloying elements on microstructure and properties of multiprincipal elements high-entropy alloys [J].
Li, C. ;
Li, J. C. ;
Zhao, M. ;
Jiang, Q. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 475 (1-2) :752-757
[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]   Laser cladding Co-based alloy/SiCp composite coatings on IF steel [J].
Li, MX ;
He, YZ ;
Sun, GX .
MATERIALS & DESIGN, 2004, 25 (04) :355-358
[9]   Elucidating the microstructure and wear behavior for multicomponent alloy clad layers by in situ synthesis [J].
Lin, Y. C. ;
Cho, Y. H. .
SURFACE & COATINGS TECHNOLOGY, 2008, 202 (19) :4666-4672
[10]   Influence of additives on the microstructure and tensile properties of near-eutectic Al-10.8%Si cast alloy [J].
Mohamed, A. M. A. ;
Samuel, A. M. ;
Samuel, F. H. ;
Doty, H. W. .
MATERIALS & DESIGN, 2009, 30 (10) :3943-3957
123