| 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
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| Corresponding Author | Liu, Jian([email protected]) |
| Source Publication | JOM
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| 2019-10-24 | |
| Pages | 7 |
| ISSN | 1047-4838 |
| Abstract | To 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. |
| DOI | 10.1007/s11837-019-03858-1 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000492370100007 |
| WOS Keyword | SLIDING WEAR ; MICROSTRUCTURE ; ALLOY ; PERFORMANCE ; EVOLUTION ; OXIDATION ; PROPERTY ; LAYER |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| Funding Project | Natural Science Foundation of Jiangsu Province[BK20160258] ; China Postdoctoral Science Foundation[2015M581881] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| Funding Organization | Natural Science Foundation of Jiangsu Province ; China Postdoctoral Science Foundation ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| Classification | 二类/Q1 |
| Ranking | 5 |
| Contributor | Liu, Jian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81386 |
| Collection | 先进制造工艺力学实验室 |
| Affiliation | 1.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.Rp_Au:Liu, Jian |
| 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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| File Name/Size | DocType | Version | Access | License | ||
| Jp2019506.pdf（1580KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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