Dry Wear Behavior of Cladded NiCoCrAlY Coating on Cast Iron at Elevated Temperatures
文献类型：期刊论文
| 作者 | Liu H(刘昊)3,4; Liu J4; Hao JB4; Yang HF4; He XL(何秀丽)1,2 ; Yu G(虞刚)1,2
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| 刊名 | JOM
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| 出版日期 | 2019-10-24 |
| 页码 | 7 |
| ISSN号 | 1047-4838 |
| DOI | 10.1007/s11837-019-03858-1 |
| 通讯作者 | Liu, Jian(15257130777@163.com) |
| 英文摘要 | 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. |
| 分类号 | 二类/Q1 |
| WOS关键词 | SLIDING WEAR ; MICROSTRUCTURE ; ALLOY ; PERFORMANCE ; EVOLUTION ; OXIDATION ; PROPERTY ; LAYER |
| 资助项目 | Natural Science Foundation of Jiangsu Province[BK20160258] ; China Postdoctoral Science Foundation[2015M581881] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000492370100007 |
| 资助机构 | Natural Science Foundation of Jiangsu Province ; China Postdoctoral Science Foundation ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) |
| 其他责任者 | Liu, Jian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/81385]  |
| 专题 | 力学研究所_先进制造工艺力学重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing, Peoples R China; 3.China Univ Min & Technol, Jiangsu Key Lab Mine Mech & Elect Equipment, Xuzhou, Jiangsu, Peoples R China; 4.China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou, Jiangsu, Peoples R China; |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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