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High temperature tribological behaviors and wear mechanisms of NiAl-NbC-Ag composites formed by in-situ decomposition of AgNbO3
Feng, Xiaochun1,2; Lu, Cheng1,2; Jia, Junhong1,3; Xue, Jiali3; Wang, Qihua1; Sun, Yuan4; Wang, Wenzhen1; Yi, Gewen1
Corresponding AuthorJia, Junhong(jhjia@licp.cas.cn) ; Wang, Qihua(qhwang@licp.cas.cn)
2020
Source PublicationTRIBOLOGY INTERNATIONAL
ISSN0301-679X
Volume141Pages:9
AbstractNiAl-NbC-Ag composites were successfully prepared by vacuum-hot-pressing sintering with directly addition of AgNbO3 powders, where AgNbO3 were synthesized using a solid state reaction method. The tribological behaviors of composites were evaluated from 25 degrees C to 800 degrees C. The consequences reveal AgNbO3 are completely decomposed during sintering process and in-situ formed NiAl-NbC-Ag composites, which hold excellent high temperature tribologicial properties. At mid-low temperature, NAB20 (NiAl-20 wt%AgNbO3) has a relative lower friction coefficient compared to NiAl, which was attributed to the existence of Ag. While the lowered friction coefficients at 600 degrees C and 800 degrees C were attributed to the lubricating glaze layers formed by tribo-chemical reaction on the worn surfaces, which were consisted of typical layered structure Ag2Nb4O11, perovskite AgNbO3 with a highly flexible crystal structure and AgNb3O8.
KeywordIn-situ decomposition High temperature Tribological behaviors
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Solid Lubrication
DOI10.1016/j.triboint.2019.105898
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51575505] ; National Natural Science Foundation of China[51675508] ; State Key Laboratory of Solid Lubrication[LSL-1610]
WOS Research AreaEngineering
WOS SubjectEngineering, Mechanical
WOS IDWOS:000505271400010
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136481
Collection中国科学院金属研究所
Corresponding AuthorJia, Junhong; Wang, Qihua
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
3.Shaanxi Univ Sci & Technol, Coll Mech & Elect Engn, Xian 710021, Shaanxi, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Dept Superalloys, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Feng, Xiaochun,Lu, Cheng,Jia, Junhong,et al. High temperature tribological behaviors and wear mechanisms of NiAl-NbC-Ag composites formed by in-situ decomposition of AgNbO3[J]. TRIBOLOGY INTERNATIONAL,2020,141:9.
APA Feng, Xiaochun.,Lu, Cheng.,Jia, Junhong.,Xue, Jiali.,Wang, Qihua.,...&Yi, Gewen.(2020).High temperature tribological behaviors and wear mechanisms of NiAl-NbC-Ag composites formed by in-situ decomposition of AgNbO3.TRIBOLOGY INTERNATIONAL,141,9.
MLA Feng, Xiaochun,et al."High temperature tribological behaviors and wear mechanisms of NiAl-NbC-Ag composites formed by in-situ decomposition of AgNbO3".TRIBOLOGY INTERNATIONAL 141(2020):9.
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