Microstructure and tribological property of HVOF-sprayed adaptive NiMoAl-Cr3C2-Ag composite coating from 20 °C to 800 °C
文献类型：期刊论文
| 作者 | Chen J(陈杰)1,2 ; Zhao XQ(赵晓琴)1; Zhou HD(周惠娣)1; Chen JM(陈建敏)1; An YL(安宇龙)1; Yan FY(阎逢元)1; Yan FY(阎逢元); An YL(安宇龙)
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| 刊名 | Surface and Coatings Technology
 |
| 出版日期 | 2014 |
| 卷号 | 258页码:1183-1190 |
| 关键词 | Self-lubricating coating Silver molybdate HVOF spraying Ni-based coating High temperature |
| ISSN号 | 0257-8972 |
| 通讯作者 | 安宇龙 ; 阎逢元 |
| 英文摘要 | Adaptive NiMoAl–Cr3C2–Ag composite coating was deposited by high velocity oxy-fuel (HVOF) spraying and its tribological properties from 20 °C to 800 °C under unlubricated conditions were evaluated. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectroscopy were used to characterize the coating and corresponding wear tracks to determine the lubrication mechanisms. The results showed that HVOF-sprayed composite coating exhibited an extremely dense structure, high bonding strength, and excellent friction reduction and wear resistance. When the applied load is 15 N, friction coefficients of the composite coating were below 0.3 and wear rates maintained at the order of 10− 6 mm3/N·m except 400 °C. Post-wear testing structural and chemical characterization revealed that silver with low shear strength provided lubrication below 400 °C. Subsequently, the composite coating suffered serious adhesion wear at 400 °C, nevertheless, the adhesive degree could be greatly alleviated at a lower applied load. At higher temperatures, silver molybdate that was formed through tribo-chemistry reactions acted as high temperature lubricants. |
| 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 (Grant Nos. 51302272;51275509;51175491);the 973 Project of China (No. 2013CB632300);the Chinese Academy of Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000346895000144 |
| 公开日期 | 2014-11-24 |
| 源URL | [http://210.77.64.217/handle/362003/6769]  |
| 专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Yan FY(阎逢元); An YL(安宇龙) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen J,Zhao XQ,Zhou HD,et al. Microstructure and tribological property of HVOF-sprayed adaptive NiMoAl-Cr3C2-Ag composite coating from 20 °C to 800 °C[J]. Surface and Coatings Technology,2014,258:1183-1190. |
| APA | Chen J.,Zhao XQ.,Zhou HD.,Chen JM.,An YL.,...&安宇龙.(2014).Microstructure and tribological property of HVOF-sprayed adaptive NiMoAl-Cr3C2-Ag composite coating from 20 °C to 800 °C.Surface and Coatings Technology,258,1183-1190. |
| MLA | Chen J,et al."Microstructure and tribological property of HVOF-sprayed adaptive NiMoAl-Cr3C2-Ag composite coating from 20 °C to 800 °C".Surface and Coatings Technology 258(2014):1183-1190. |
入库方式： OAI收割
来源：兰州化学物理研究所
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