Microstructure Evolution and Its Effect on the Wear Performance of HVOF-Sprayed Conventional WC-Co Coating

被引:1
作者
Dingfa Fu
Haoqi Xiong
Qun Wang
机构
[1] Hunan University,College of Materials Science and Engineering
来源
Journal of Materials Engineering and Performance | 2016年 / 25卷
关键词
decarburization; HVOF; microstructure evolution; wear; WC-Co;
D O I
暂无
中图分类号
学科分类号
摘要
In this work, a conventional tungsten carbide 12% cobalt (WC-12Co) coating was deposited by using a liquid fuel JP-8000 high velocity oxyfuel spray system. The properties of the coating namely phase content, microstructure, hardness, porosity, and fracture toughness were examined. The microstructure evolution and its influence on the abrasive wear behavior of the coatings were evaluated in detail by in-situ scanning electron microscopy and a comprehensive model for decarburization of WC has been established using x-ray diffraction and transmission electron microscopy analyses.
引用
收藏
页码:4352 / 4358
页数:6
相关论文
共 70 条
[1]  
Wang Q(2015)Cavitation and sand slurry erosion resistances of WC-10Co-4Cr coatings J. Mater. Eng. Perform. 24 2435-2443
[2]  
Tang ZX(2012)Electrochemical characteristics of HVOF spray coated layer with WC − 27NiCr and WC − 10Co4Cr for Al bronze Trans. Nonferrous Met. Soc. China 22 s753-s759
[3]  
Cha LM(2013)Relationships between feedstock structure, particle parameter, coating deposition, microstructure and properties for thermally sprayed conventional and nanostructured WC-Co Int. J. Refract. Met. Hard Mater. 39 2-17
[4]  
Han MS(2011)Resistance of cavitation erosion of multimodal WC-12Co coatings sprayed by HVOF Trans. Nonferrous Met. Soc. China 21 129-135
[5]  
Lee SJ(1985)Plasma sprayed WC-Co coatings: influence of spray conditions (atmospheric and low pressure plasma spraying) on the crystal structure, porosity, and hardness J. Vac. Sci. Technol. A 3 2483-2489
[6]  
Kim MS(2000)Influence of coating microstructure on the abrasive wear resistance of WC/Co cermet coatings Surf. Coat. Technol. 124 235-245
[7]  
Jang SK(2001)Factors controlling decarburization in HVOF sprayed nano-WC/Co hardcoatings Scripta Mater. 44 1703-1707
[8]  
Kim SJ(2015)Sliding wear investigation of suspension sprayed WC-Co nanocomposite coatings Wear 322–323 133-150
[9]  
Li CJ(2013)Propylene flow, microstructure and performance of WC-12Co coatings using a gas-fuel HVOF spray process[J] J. Mater. Process. Technol. 213 1653-1660
[10]  
Yang GJ(2014)Effects of the dispersion time on the microstructure and wear resistance of WC/Co-CNTs HVOF sprayed coatings Surf. Coat. Technol. 258 38-48