Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃
文献类型：期刊论文
| 作者 | Yan FY(阎逢元) ; Yan FY(阎逢元); Zhou HD(周惠娣); Chen JM(陈建敏)
|
| 刊名 | Tribology Letters
 |
| 出版日期 | 2010 |
| 卷号 | 37页码:463-475 |
| 关键词 | HVOF spraying Cr3C2–NiCr coating CeO2 additive Friction and wear behavior Wear mechanism Elevated temperature |
| ISSN号 | 1023-8883 |
| 通讯作者 | 阎逢元 |
| 中文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | 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) |
| 语种 | 英语 |
| 公开日期 | 2012-09-28 |
| 源URL | [http://210.77.64.217/handle/362003/1080]  |
| 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 | Yan FY(阎逢元); Yan FY(阎逢元) |
| 推荐引用方式 GB/T 7714 | Yan FY,Yan FY,Zhou HD,et al. 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 | 阎逢元,阎逢元,周惠娣,&陈建敏.(2010).Sliding wear behavior of HVOF-sprayed Cr3C2–NiCr/CeO2 composite coatings at elevated temperature up to 800℃.Tribology Letters,37,463-475. |
| MLA | 阎逢元,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. |
入库方式： OAI收割
来源：兰州化学物理研究所
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