Microstructure and high-temperature friction and wear behavior of WC-(W,Cr)2C-Ni coating prepared by high velocity oxy-fuel spraying
文献类型：期刊论文
| 作者 | Chen J(陈杰) ; Hou GL(侯国梁); Chen JM(陈建敏); An YL(安宇龙); Zhou HD(周惠娣)
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| 刊名 | Surface and Coatings Technology
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| 出版日期 | 2011 |
| 卷号 | 206页码:82-94 |
| 关键词 | HVOF WC-(W Microstructure Oxidation resistance Friction and wear behavior Cr)2C-Ni coating |
| ISSN号 | 0257-8972 |
| 通讯作者 | 周惠娣 |
| 中文摘要 | WC-(W,Cr)2C-Ni coatingwas prepared by high velocity oxy-fuel spraying (HVOF). Themicrostructure and phase composition of the as-sprayed coating and that after oxidation at high temperature were analyzed by means of scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The oxidation behavior of as-sprayed coating and starting powders was evaluated by thermogravimetry. Dry sliding friction and wear behavior of the WC-(W,Cr)2C-Ni coating sliding against Si3N4 ball at different temperatures (roomtemperature 20 °C and elevated temperature of 700 °C and 800 °C) was evaluated using an oscillating friction and wear tester. Besides, the microhardness and fracture toughness of the coating was also measured. Results show that sintering agglomeratedWC-20 wt.%Cr- 7 wt.%Ni powder is an effective method to prepare agglomerated and sintered WC-(W,Cr)2C-Ni composite powder. The excellent oxidation resistance ofWC-(W,Cr)2C-Ni coating ismainly resulted from a double-decker shell-coremicrostructure formed in the coating. The composition of the outer shell is (W,Cr)2C phase and that of the inner shell is Cr3C2. During high-temperature friction andwear test,well remained hardWC phase in theWC- (W,Cr)2C-Ni coating can guarantee its good mechanical properties and wear resistance, and newly generated nano NiWO4,CrWO4 and Cr2WO6 particles can further improve these properties significantly. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (in the name of Innovative Group Fund,grant NO.50421502);the Ministry of Science and Technology of China (in the name of “973” Plan,grant NO.2007CB607601) |
| 语种 | 英语 |
| 公开日期 | 2012-09-24 |
| 源URL | [http://210.77.64.217/handle/362003/823]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 通讯作者 | Zhou HD(周惠娣) |
| 推荐引用方式 GB/T 7714 | Chen J,Hou GL,Chen JM,et al. Microstructure and high-temperature friction and wear behavior of WC-(W,Cr)2C-Ni coating prepared by high velocity oxy-fuel spraying[J]. Surface and Coatings Technology,2011,206:82-94. |
| APA | 陈杰,侯国梁,陈建敏,安宇龙,&周惠娣.(2011).Microstructure and high-temperature friction and wear behavior of WC-(W,Cr)2C-Ni coating prepared by high velocity oxy-fuel spraying.Surface and Coatings Technology,206,82-94. |
| MLA | 陈杰,et al."Microstructure and high-temperature friction and wear behavior of WC-(W,Cr)2C-Ni coating prepared by high velocity oxy-fuel spraying".Surface and Coatings Technology 206(2011):82-94. |
入库方式： OAI收割
来源：兰州化学物理研究所
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