| Influence of laser re-melting and vacuum heat treatment on plasma-sprayed FeCoCrNiAl alloy coatings | |
| Alternative Title | Influence of laser re-melting and vacuum heat treatment on plasma-sprayed FeCoCrNiAl alloy coatings |
| Lin Danyang; Zhang Nannan; He Bin; Jin Bingqian; Zhang Yue; Li Deyuan; Dong Fuyu | |
| 2017 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Volume | 24Issue:12Pages:1199-1205 |
| Abstract | FeCoCrNiAl high entropy alloy coatings were prepared by supersonic air-plasma spraying. The coatings were post-treated by vacuum heat treatment at 600 and 900 degrees C, and laser re-melting with 300 W, respectively, to study the influence of different treatments on the structure and properties of the coatings. The phase constitution, microstructure and microhardness of the coatings after treatments were investigated using X-ray diffraction, scanning electron microscopy and energy dispersive spectrometry. Results showed that the as-sprayed coatings consisted of pure metal and Fe-Cr. The AINi(3) phase was obtained after the vacuum heat treatment process. A body-centered cubic structure with less AINi3 could he found in the coating after the laser re-melting process. The average hardness values of the as-sprayed coating and the coatings with two different temperature vacuum heat treatments and with laser re-melting were 177, 227, 266 and 682 HV, respectively. This suggests that the vacuum heat treatment promoted the alloying process of the coatings, and contributed to the enhancement of the coating wear resistance. The laser re-melted coating showed the best wear resistance. |
| Other Abstract | FeCoCrNiAl high entropy alloy coatings were prepared by supersonic air-plasma spraying.The coatings were post-treated by vacuum heat treatment at 600 and 900°C,and laser re-melting with 300 W,respectively,to study the influence of different treatments on the structure and properties of the coatings.The phase constitution,microstructure and microhardness of the coatings after treatments were investigated using X-ray diffraction,scanning electron microscopy and energy dispersive spectrometry.Results showed that the as-sprayed coatings consisted of pure metal and Fe-Cr.The AlNi_3 phase was obtained after the vacuum heat treatment process.A body-centered cubic structure with less AlNi_3 could be found in the coating after the laser re-melting process.The average hardness values of the as-sprayed coating and the coatings with two different temperature vacuum heat treatments and with laser re-melting were 177,227,266 and 682 HV,respectively.This suggests that the vacuum heat treatment promoted the alloying process of the coatings,and contributed to the enhancement of the coating wear resistance.The laser re-melted coating showed the best wear resistance. |
| Keyword | HIGH-ENTROPY ALLOYS MECHANICAL-PROPERTIES MICROSTRUCTURE BEHAVIOR STRENGTH ELEMENTS STEEL Plasma spray High entropy alloy Vacuum heat treatment Laser re-melting FeCoCrNiAl alloy coating |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] ; [China Postdoctoral Science Foundation] ; [Natural Science Foundation of Liaoning Province] ; [Science Research Program of Education Department in Liaoning Province] |
| CSCD ID | CSCD:6138892 |
| Citation statistics |
Cited Times:4[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/155779 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Lin Danyang,Zhang Nannan,He Bin,et al. Influence of laser re-melting and vacuum heat treatment on plasma-sprayed FeCoCrNiAl alloy coatings[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2017,24(12):1199-1205. |
| APA | Lin Danyang.,Zhang Nannan.,He Bin.,Jin Bingqian.,Zhang Yue.,...&Dong Fuyu.(2017).Influence of laser re-melting and vacuum heat treatment on plasma-sprayed FeCoCrNiAl alloy coatings.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,24(12),1199-1205. |
| MLA | Lin Danyang,et al."Influence of laser re-melting and vacuum heat treatment on plasma-sprayed FeCoCrNiAl alloy coatings".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 24.12(2017):1199-1205. |
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