| Composition versus friction and wear behavior of plasma sprayed WC-(W,Cr)(2)C-Ni/Ag/BaF2-CaF2 self-lubricating composite coatings for use up to 600 degrees C | |
| Department | 先进润滑与防护材料研究发展中心 |
Chen JM(陈建敏)1 ; Hou GL(侯国梁)1,2; Chen J(陈杰)1,2; An YL(安宇龙)1; Zhou HD(周惠娣)1; Zhao XQ(赵晓琴)1; Yang J(杨杰)1,2; Chen JM(陈建敏)
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| The second department | 固体润滑国家重点实验室 |
| 2012 | |
| Source Publication | Applied Surface Science
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| ISSN | 0169-4332 |
| Volume | 261Pages:584-592 |
| Abstract | This paper reports the composition optimization of self-lubricating composite coatings containing WC–(W,Cr)2C–Ni, silver and fluoride eutectics. Various ingredients obtained by powder blending were studied to determine their optimum content in as-prepared composite coatings. An atmospheric plasma spraying (APS) system was used to deposit promising WC–(W,Cr)2C–Ni/Ag/BaF2–CaF2 self-lubricating composite coatings. The friction and wear behavior of the composite coatings sliding against Si3N4 ball was investigated from room temperature to 600 °C. Results show that silver and fluoride eutectics can effectively reduce the friction coefficient of the coatings and the wear volume loss of counterpart balls over the whole temperature range. Thanks to the highest hardness, WC–(W,Cr)2C–Ni coating without silver and fluoride eutectics has the lowest wear rate at room temperature and 600 °C. However, it has a high friction coefficient and a very high wear rate at 200 and 400 °C, due to severe adhesion wear and fatigue wear thereat. Fortunately, introducing appropriate amount of silver and fluoride eutectics contributes to effectively reduce the wear rate of the composite coatings at 200 and 400 °C. The optimized composite coating consists of 70 wt.% WC–(W,Cr)2C–Ni, 15 wt.% Ag and 15 wt.% BaF2/CaF2, and it has excellent friction and wear performance over a wide range of temperature. |
| Keyword | Atmospheric Plasma Spraying Baf2/caf2 Wc-(w Ag Cr)(2)C-ni Self-lubricating Composite Coating Composition Optimization Friction And Wear Behavior |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.apsusc.2012.08.060 |
| Funding Organization | the Science Fund for Creative Research Groups of National Natural Science Foundation of China(grant no. 50421502);the Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences (YYYJ-0913) |
| Indexed By | SCI |
| If | 2.112 |
| Language | 英语 |
| Funding Project | 磨损和表面工程组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3285 |
| 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 | Chen JM(陈建敏) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Chen JM,Hou GL,Chen J,et al. Composition versus friction and wear behavior of plasma sprayed WC-(W,Cr)(2)C-Ni/Ag/BaF2-CaF2 self-lubricating composite coatings for use up to 600 degrees C[J]. Applied Surface Science,2012,261:584-592. |
| APA | Chen JM.,Hou GL.,Chen J.,An YL.,Zhou HD.,...&陈建敏.(2012).Composition versus friction and wear behavior of plasma sprayed WC-(W,Cr)(2)C-Ni/Ag/BaF2-CaF2 self-lubricating composite coatings for use up to 600 degrees C.Applied Surface Science,261,584-592. |
| MLA | Chen JM,et al."Composition versus friction and wear behavior of plasma sprayed WC-(W,Cr)(2)C-Ni/Ag/BaF2-CaF2 self-lubricating composite coatings for use up to 600 degrees C".Applied Surface Science 261(2012):584-592. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 584-592.PDF（2962KB） | 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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