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Dry Wear Behavior of Cladded NiCoCrAlY Coating on Cast Iron at Elevated Temperatures
Liu H(刘昊)1,2; Liu J1; Hao JB1; Yang HF1; He XL(何秀丽)3,4; Yu G(虞刚)3,4
Corresponding AuthorLiu, Jian(15257130777@163.com)
Source PublicationJOM
2019-10-24
Pages7
ISSN1047-4838
AbstractTo improve the service life of valve retainer in the engine exhaust system, the NiCoCrAlY alloy coating was fabricated on compacted graphite cast iron by laser cladding. Microstructure and high-temperature wear resistance of the coating were studied. The coating exhibits a refined dendritic structure. The M23C6 nano-precipitates with rod-shape are embedded the gamma(Fe, Ni) solid solution dendrites, and the M7C3 nano-precipitates are distributed in the inter-dendrite region. The average nano-hardness of the coating and the substrate are measured as 4.08 GPa and 3.96 GPa, respectively. The wear morphologies and coefficient of friction variation reveal that the friction layer formed at 25 degrees C and 600 degrees C is a mechanical mixing layer and a composite layer, respectively. The coating possesses excellent wear resistance at 600 degrees C due to the formation of a dense oxide film. The main component of the oxide film is identified as Fe2O3, Fe3O4, Al2O3, CrO2, CrO3 and Cr2O3.
DOI10.1007/s11837-019-03858-1
Indexed BySCI ; EI
Language英语
WOS IDWOS:000492370100007
WOS KeywordSLIDING WEAR ; MICROSTRUCTURE ; ALLOY ; PERFORMANCE ; EVOLUTION ; OXIDATION ; PROPERTY ; LAYER
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
Funding ProjectNatural Science Foundation of Jiangsu Province[BK20160258] ; China Postdoctoral Science Foundation[2015M581881] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Funding OrganizationNatural Science Foundation of Jiangsu Province ; China Postdoctoral Science Foundation ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Classification二类/Q1
Ranking5
ContributorLiu, Jian
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/81386
Collection先进制造工艺力学实验室
Affiliation1.China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou, Jiangsu, Peoples R China;
2.China Univ Min & Technol, Jiangsu Key Lab Mine Mech & Elect Equipment, Xuzhou, Jiangsu, Peoples R China;
3.Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing, Peoples R China;
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu H,Liu J,Hao JB,et al. Dry Wear Behavior of Cladded NiCoCrAlY Coating on Cast Iron at Elevated Temperatures[J]. JOM,2019:7.
APA 刘昊,Liu J,Hao JB,Yang HF,何秀丽,&虞刚.(2019).Dry Wear Behavior of Cladded NiCoCrAlY Coating on Cast Iron at Elevated Temperatures.JOM,7.
MLA 刘昊,et al."Dry Wear Behavior of Cladded NiCoCrAlY Coating on Cast Iron at Elevated Temperatures".JOM (2019):7.
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