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Tribological behaviour at various temperatures of WC-Co coatings prepared using different thermal spraying techniques
Geng, Z; Hou, SH; Shi, GL; Duan, DL; Li, S; Duan, DL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2016-12-01
Source PublicationTRIBOLOGY INTERNATIONAL
ISSN0301-679X
Volume104Pages:36-44
AbstractTribological performance of WC-12Co coatings prepared via air plasma spraying (APS), low-pressure plasma spraying (LPPS) and high-velocity air-fuel spraying (HVAF) at temperatures ranging from room temperature (RT, similar to 25 degrees C) to 650 degrees C was investigated. Relationships between the microstructure and tribological behaviour of coatings were discussed. Results show that the plasma-sprayed coatings exhibited more brittle phases, pores and microcracks, which provided the coatings with low hardness, toughness and oxidation resistance, promoted the coating splat delamination during friction and consequently led to the high wear rate. The HVAF coating had fewer brittle phases, fewer pores and more WC particles, which improved the mechanical properties and oxidation resistance, avoided the coating splat delamination, promoted CoWO4 formation and consequently exhibited the better wear resistance. (C) 2016 Elsevier Ltd. All rights reserved.
description.department[geng, zhe ; shi, gaolian] suzhou inst ind technol, dept precis mfg engn, suzhou 215104, peoples r china ; [hou, sihan ; duan, deli ; li, shu] chinese acad sci, inst met res, shenyang 110016, peoples r china
KeywordWc-co Coating High Temperature Friction And Wear Microstructure
Subject AreaEngineering, Mechanical
Funding OrganizationTop-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP) [PPZY2015B186]; Natural Science Foundation of Jiangsu Province, China [BK20160353]; Natural Science Foundation of the Jiangsu Higher Education Institutions of China [16KJB460032]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76171
Collection中国科学院金属研究所
Corresponding AuthorDuan, DL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Geng, Z,Hou, SH,Shi, GL,et al. Tribological behaviour at various temperatures of WC-Co coatings prepared using different thermal spraying techniques[J]. TRIBOLOGY INTERNATIONAL,2016,104:36-44.
APA Geng, Z,Hou, SH,Shi, GL,Duan, DL,Li, S,&Duan, DL .(2016).Tribological behaviour at various temperatures of WC-Co coatings prepared using different thermal spraying techniques.TRIBOLOGY INTERNATIONAL,104,36-44.
MLA Geng, Z,et al."Tribological behaviour at various temperatures of WC-Co coatings prepared using different thermal spraying techniques".TRIBOLOGY INTERNATIONAL 104(2016):36-44.
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