| Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃ | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
尹斌; 刘光; 周惠娣 ; 陈建敏; 阎逢元
| |
| 2010 | |
| Source Publication | Tribology Letters
 |
| ISSN | 1023-8883 |
| Volume | 37Pages:463-475 |
| Abstract | Four types of Cr3C2–NiCr coatings containingdifferent fractions of CeO2 additive were deposited usinghigh velocity oxy-fuel spraying. Hardness tester, X-raydiffractometer, contact surface profiler, and scanningelectron microscope equipped with energy dispersivespectrometer were employed to characterize the microh-ardness, phase composition, surface roughness, andmicrostructure of as-sprayed coatings. At the same time,the friction and wear behavior of the as-sprayed coatingssliding against Si3N4 ball at room temperature and elevatedtemperature of 400 or 800 C under unlubricated conditionwas evaluated using an oscillating friction and wear tester.The worn surfaces of the composite coatings and Si3N4counterpart balls were analyzed by means of scanningelectron microscopy, X-ray diffraction, and three dimen-sional non-contact surface profiler. The friction andwear mechanisms of the coatings with and without CeO2additive were comparatively discussed. Results show thatthe composite coatings doped with CeO2 had betterwear-resistance than that without CeO2, and the coatingcontaining 4 wt% CeO2 showed the best wear-resistantproperty. The improved wear-resistant properties of thecomposite coatings doped with CeO2 were attributed to therefined microstructure and improved mechanical propertiesinduced by CeO2. |
| Keyword | Hvof Spraying Cr3c2–nicr Coating Ceo2 Additive Friction And Wear Behavior Wear Mechanism Elevated Temperature |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | National Natural Science Foundation of China (in the name of Innovative Group Fund, grant No. 50421502);Ministry of Science and Technology of China (in the name of ‘‘973’’ Plan, grant No. 2007CB607601) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 磨损和表面工程组 ; 功能防护材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1080 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | 阎逢元 |
| Recommended Citation GB/T 7714 | 尹斌,刘光,周惠娣,等. Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃[J]. Tribology Letters,2010,37:463-475. |
| APA | 尹斌,刘光,周惠娣,陈建敏,&阎逢元.(2010).Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃.Tribology Letters,37,463-475. |
| MLA | 尹斌,et al."Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃".Tribology Letters 37(2010):463-475. |
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| 2010463-475.pdf（2760KB） | 开放获取 | License | View Application Full Text | |||
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