| Microstructure and tribological property of HVOF-sprayed adaptive NiMoAl-Cr3C2-Ag composite coating from 20 °C to 800 °C | |
| Department | 先进润滑与防护材料研究发展中心 |
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; An YL(安宇龙); Yan FY(阎逢元)
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| The second department | 固体润滑国家重点实验室 |
| 2014 | |
| Source Publication | Surface and Coatings Technology
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| ISSN | 0257-8972 |
| Volume | 258Pages:1183-1190 |
| Abstract | 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. |
| Keyword | Self-lubricating Coating Silver Molybdate Hvof Spraying Ni-based Coating High Temperature |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.surfcoat.2014.07.012 |
| Funding Organization | the National Natural Science Foundation of China (Grant Nos. 51302272;51275509;51175491);the 973 Project of China (No. 2013CB632300);the Chinese Academy of Sciences |
| Indexed By | SCI |
| If | 1.998 |
| Language | 英语 |
| Funding Project | 磨损与表面工程课题组;功能防护材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/6769 |
| Collection | 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 固体润滑国家重点实验室（LSL） |
| Corresponding Author | An YL(安宇龙); Yan FY(阎逢元) |
| Affiliation | 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 |
| Recommended Citation 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.,...&阎逢元.(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S025789721400（2752KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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