Effect of heat treatment on structure and property evolutions of atmospheric plasma sprayed NiCrBSi coatings | |
Department | 先进润滑与防护材料研究发展中心 |
Liu, Liming1; Xu, Haifeng1; Xiao, Jinkun1; Wei, Xinlong1; Zhang G(张嘎)2; Zhang, Chao1 | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Surface and Coatings Technology |
ISSN | 0257-8972 |
Volume | 325Pages:548-554 |
Abstract | To investigate the evolutions of structures and properties of NiCrBSi coatings on cylinder liner of engines during its service, atmospheric plasma sprayed (APS) NiCrBSi coatings were heat treated at 300, 500, or 700 ℃ in this work. The effect of heat treatment on microstructure, phase composition, microhardness and tribological performance has been investigated. It was identified that as -sprayed coatings mainly consisted of γ-(Ni, Fe) phase while CrB and Ni3B phases precipitated from the coatings during the heat treatments at 500 and 700 ℃. In addition, inter-splat oxidation of the coating during the heat treatment occurred. Moreover, the crystallinity of the coating was significantly enhanced with increasing the heat treatment temperature. The heat treatment improved obviously the microhardness whereas it did not exert a pronounced effect on the friction coefficients of the coatings. In spite of the enhanced microhardness, the heat treatment at 700 ℃ increased the wear rate comparatively. It was revealed that inter-splat debonding of the coating surface layer involved in the friction dominated the wear resistance of the coating. Inter-splat oxidation and reduction of coating toughness due to heat treatment can account for the increased wear rate. |
Keyword | Plasma Spray Nicrbsi Coating Heat Treatment Microstructure Wear Resistance |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.surfcoat.2017.07.011 |
Funding Organization | the Jiangsu Natural Science Foundation of China under Grant No. BK20140487;BK20160472;the Funding of Jiangsu Innovation Program for Graduate Education under Grant No. KYLX16_1387 ; Six Talent Peaks Project in Jiangsu Province under Grant No. JXQC-031 |
Indexed By | SCI |
If | 2.589 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22505 |
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 | Zhang, Chao |
Affiliation | 1.Yangzhou Univ, Coll Mech Engn, Yangzhou 225127, Jiangsu, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Liu, Liming,Xu, Haifeng,Xiao, Jinkun,et al. Effect of heat treatment on structure and property evolutions of atmospheric plasma sprayed NiCrBSi coatings[J]. Surface and Coatings Technology,2017,325:548-554. |
APA | Liu, Liming,Xu, Haifeng,Xiao, Jinkun,Wei, Xinlong,Zhang G,&Zhang, Chao.(2017).Effect of heat treatment on structure and property evolutions of atmospheric plasma sprayed NiCrBSi coatings.Surface and Coatings Technology,325,548-554. |
MLA | Liu, Liming,et al."Effect of heat treatment on structure and property evolutions of atmospheric plasma sprayed NiCrBSi coatings".Surface and Coatings Technology 325(2017):548-554. |
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