Effect of Cr nanoparticle dispersions with various contents on the oxidation and phase transformation of alumina scale formation on Ni2Al3 coating | |
| Khan, Azim1,2; Ullah, Ihsan2; Shah, S. S. A.1; Aziz, Tariq2; Zhang, S. H.1; Song, G. S.1 | |
| Corresponding Author | Khan, Azim(azim@alum.imr.ac.cn) ; Song, G. S.(song_ahut@163.com) |
| 2022-05-25 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 438Pages:10 |
| Abstract | In this work, the Ni-Cr nanocomposite films were fabricated with various contents of Cr nanoparticle dispersions and then subsequently aluminized to obtain the Cr nanoparticle-dispersed Ni2Al3 coating at temperature 620 C. For comparison, the samples without Cr nanoparticle dispersions were prepared under the same experimental condition. The results showed that the Ni2Al3 coating with Cr nanoparticle dispersions has a lower oxidation rate than the Cr-free Ni2Al3 coating after oxidation. The result also indicates that Cr nanoparticle dispersions in the Ni2Al3 coating promoted the transformation of 0-into-alpha alumina phase and surface microstructure evolution based on the investigations of photo-stimulated luminescence spectroscopy (PSLS) and scanning electron microscopy (SEM), respectively. Furthermore, with increasing the content of Cr nanoparticle dispersions from 2.5 wt% to 5 wt% in theNi(2)Al(3) coatings can significantly reduce the oxidation rate through accelerated phase transformation of metastable to stable alumina. In addition, the Cr nanoparticles in Ni2Al3 not only mitigate the cavities formation at the interface, but also grow an adherent alumina scale on aluminide. |
| Keyword | Ni Cr composite Ni 2 Al 3 coating Alumina scale Oxidation Phase transformation |
| Funding Organization | Research funds for young Scientist the National Natural Science Foundation of China ; Key Laboratory of Green Fabrication and Surface Technology of Advanced Metals Materials ; Institute of Metal Research Chinese of Sciences (IMR-CAS) |
| DOI | 10.1016/j.surfcoat.2022.128397 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Research funds for young Scientist the National Natural Science Foundation of China[52150410429] ; Key Laboratory of Green Fabrication and Surface Technology of Advanced Metals Materials[GFST2022ZR12] ; Institute of Metal Research Chinese of Sciences (IMR-CAS)[110016] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000793770600002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173903 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Khan, Azim; Song, G. S. |
| Affiliation | 1.Anhui Univ Technol, Sch Mat Sci & Engn, Key Lab Green Fabricat & Surface Technol Adv Met, Minist Educ, Maanshan 243000, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 |
Khan, Azim,Ullah, Ihsan,Shah, S. S. A.,et al. Effect of Cr nanoparticle dispersions with various contents on the oxidation and phase transformation of alumina scale formation on Ni2Al3 coating [J]. SURFACE & COATINGS TECHNOLOGY,2022,438:10. |
| APA |
Khan, Azim,Ullah, Ihsan,Shah, S. S. A.,Aziz, Tariq,Zhang, S. H.,&Song, G. S..(2022). Effect of Cr nanoparticle dispersions with various contents on the oxidation and phase transformation of alumina scale formation on Ni2Al3 coating .SURFACE & COATINGS TECHNOLOGY,438,10. |
| MLA |
Khan, Azim,et al." Effect of Cr nanoparticle dispersions with various contents on the oxidation and phase transformation of alumina scale formation on Ni2Al3 coating ".SURFACE & COATINGS TECHNOLOGY 438(2022):10. |
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