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| HVOF制备亚微米结构WC-12Co涂层性能研究 | |
| 引用本文： | 王群,丁彰雄,陈振华,张世英,吴维冬.HVOF制备亚微米结构WC-12Co涂层性能研究[J].湖南大学学报(自然科学版),2007,34(2):56-59. |
| 作者姓名： | 王群 丁彰雄 陈振华 张世英 吴维冬 |
| 作者单位： | 1. 湖南大学,材料科学与工程学院,湖南,长沙,410082 2. 武汉理工大学,能源与动力工程学院,湖北,武汉,430063 3. 长沙学院,生物工程与环境科学系,湖南,长沙,410003 |
| 基金项目： | 国家自然科学基金资助项目(50479016) |
| 摘 要： | 采用超音速火焰(HVOF)喷涂工艺制备了亚微米结构WC-12Co涂层,测试了这种亚微米涂层的结合强度、显微硬度及抗磨粒磨损性能,并利用XRD对喷涂粉末及涂层进行相结构分析,用扫描电子显微镜对喷涂粉末、磨粒磨损前后的涂层表面形貌进行观察.研究结果表明:喷涂过程中,亚微米结构WC粒子没有明显的脱碳分解发生,涂层组织结构致密,其显微硬度平均值高达HV1105;在相同的试验条件下,16Mn钢的磨粒磨损量是亚微米WC-12Co涂层的7.8倍,这表明亚微米结构涂层具有优异的抗磨粒磨损性能. |
| 关 键 词： | 涂层 超音速火焰喷涂 WC-12Co 磨粒磨损 |
| 文章编号： | 1000-2472（2007）02-0056-04 |
| 修稿时间： | 2006-08-11 |
Performance Study of Submicron Structured WC-12Co Coatings Sprayed by HVOF |
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| WANG Qun,DING Zhang-xiong,CHEN Zheng-hu,ZHANG Shi-ying,WU Wei-dong.Performance Study of Submicron Structured WC-12Co Coatings Sprayed by HVOF[J].Journal of Hunan University(Naturnal Science),2007,34(2):56-59. | |
| Authors: | WANG Qun DING Zhang-xiong CHEN Zheng-hu ZHANG Shi-ying WU Wei-dong |
| Institution: | 1.College of Materials Science and Engineering, Hunan Univ,Changsha,Hunan 410082,China; 2. College of Energy and Engineering, Wuhan Univ of Technology,Wuhan, Hubei 430063,China; 3. Dept of Biological Engineering and Environmental Science, Changsha Univ,Changsha,Hunan 410003,China |
| Abstract: | Submicron structural WC-12Co coatings were deposited by HVOF spraying. The properties of microhardness and the abrasive wear of the coating were investigated.Phases of the feedstock powders and the coating were analyzed by XRD.The characterizations of spraying feedstock powders,microstructure and surface micrographs of the prophase,and anaphase attrition surfaces were analyzed by SEM.The results indicated that the submicron WC particles did not decompose noticeably during spraying,the coatings were highly dense,the microhardness of the coatings reached to 1150HV,and the weight loss of abrasive wear of 16Mn steel were 7.8 times to the coating.This demonstrated the excellent wear resistance performance of the coating. |
| Keywords: | coatings high velocity oxy-fuel WC-12Co abrasive wear |
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