| Improving cyclic oxidation resistance of Ni3Al-based single crystal superalloy with low-diffusion platinum-modified aluminide coating | |
| Liu, H.1,2; Xu, M. M.1,2; Li, S.1,2; Bao, Z. B.1; Zhu, S. L.1; Wang, F. H.3 | |
| Corresponding Author | Bao, Z. B.(zbbao@imr.ac.cn) |
| 2020-10-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 54Pages:132-143 |
| Abstract | A low-diffusion NiRePtAl coating ((Ni,Pt)Al outer layer in addition to a Re-rich diffusion barrier layer) was prepared on a Ni3Al-base single crystal (SC) superalloy via electroplating and gaseous aluminizing treatments, wherein the electroplating procedures consisted of the composite deposition of Ni-Re followed by electroplating of Pt. In order to perform a comparison with conventional NiAl and (Ni,Pt)Al coatings, the cyclic oxidation performance of the NiRePtAl coating was evaluated at 1100 and 1150 degrees C. We observed that the oxidation resistance of the NiRePtAl coating was significantly improved by the greater presence of the residual beta-NiAl phase in the outer layer and the lesser outward-diffusion of Mo from the substrate. In addition, the coating with the Re-rich diffusion barrier demonstrated a lower extent of interdiffusion into the substrate, where the thickness of the second reaction zone (SRZ) in the substrate alloy decreased by 25 %. The mechanisms responsible for improving the oxidation resistance and decreasing the extent of SRZ formation are discussed, in which a particular attention is paid to the inhibition of the outward diffusion of Mo by the Re-based diffusion barrier. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Ni3Al-base superalloy Pt-modified aluminide coating Re-rich diffusion barrier Cyclic oxidation Interdiffusion Second reaction zone |
| Funding Organization | Key-Area Research and Development Program of Guangdong Province ; National Natural Science Foundation of China |
| DOI | 10.1016/j.jmst.2020.05.007 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key-Area Research and Development Program of Guangdong Province[20198010936001] ; National Natural Science Foundation of China[51671202] ; National Natural Science Foundation of China[51301184] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000545310500014 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139731 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Bao, Z. B. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Jinzhai Rd 96, Hefei 230026, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, H.,Xu, M. M.,Li, S.,et al. Improving cyclic oxidation resistance of Ni3Al-based single crystal superalloy with low-diffusion platinum-modified aluminide coating[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,54:132-143. |
| APA | Liu, H.,Xu, M. M.,Li, S.,Bao, Z. B.,Zhu, S. L.,&Wang, F. H..(2020).Improving cyclic oxidation resistance of Ni3Al-based single crystal superalloy with low-diffusion platinum-modified aluminide coating.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,54,132-143. |
| MLA | Liu, H.,et al."Improving cyclic oxidation resistance of Ni3Al-based single crystal superalloy with low-diffusion platinum-modified aluminide coating".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 54(2020):132-143. |
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