| Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys | |
| Ren, Pan1; Zhu, Shenglong2; Wang, Fuhui3 | |
| Corresponding Author | Ren, Pan(renp@foxmail.com) |
| 2019-02-01 | |
| Source Publication | CORROSION SCIENCE
 |
| ISSN | 0010-938X |
| Volume | 147Pages:182-191 |
| Abstract | An AlN gradient-doped Ni + CrAlYSiHfN coating was prepared on superalloys by magnetron sputtering. The as-deposited coating comprised of three sub-layers. AlN phase shows a gradient distribution in coating after annealing, and AlN reaches 33 vol.% at the top of the coating. Compared with NiCrAlY coating, the gradient coating reduced the CTEs mismatch between coating and alpha-Al2O3 by 41%, and it exhibited a much lower oxidation rate in oxidation test. A thin Cr23C6 diffusion barrier formed at the coating-substrate interface. In summary, the gradient coating effectively reduces the damage of thermal stress on oxide scale, and suppressed the interdiffusion between coating and substrate. |
| Keyword | Oxidation Gradient coating High-temperature protection Diffusion barrier |
| Funding Organization | National Nature Science Foundation of China ; Guangdong Provincial Natural Science Foundation for Doctoral Research Project ; Fundamental Research Funds for the Central Universities ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University, Guangzhou, China |
| DOI | 10.1016/j.corsci.2018.11.004 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundation of China ; Guangdong Provincial Natural Science Foundation for Doctoral Research Project[2017A030310473] ; Fundamental Research Funds for the Central Universities[21617339] ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University, Guangzhou, China |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000456902100016 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131405 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ren, Pan |
| Affiliation | 1.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, Corros & Protect Div, Shenyang, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Pan,Zhu, Shenglong,Wang, Fuhui. Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys[J]. CORROSION SCIENCE,2019,147:182-191. |
| APA | Ren, Pan,Zhu, Shenglong,&Wang, Fuhui.(2019).Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys.CORROSION SCIENCE,147,182-191. |
| MLA | Ren, Pan,et al."Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys".CORROSION SCIENCE 147(2019):182-191. |
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