Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C
The hot corrosion behaviors of the aluminide coatings with different treatments on the surface of Ni-based alloy at high temperature were investigated. The aluminide coating modified by three different methods (pretreatment, Pt-modification and both), and then all the specimens were oxidized in lab...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abc4b2 |
| _version_ | 1797746907638923264 |
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| author | Jubo Peng Taihong Huang Peng Song Wenlang Huang Yang He Tao Ma Bixiao Yang Yuwei Liang Minxuan Wu Rong Chen |
| author_facet | Jubo Peng Taihong Huang Peng Song Wenlang Huang Yang He Tao Ma Bixiao Yang Yuwei Liang Minxuan Wu Rong Chen |
| author_sort | Jubo Peng |
| collection | DOAJ |
| description | The hot corrosion behaviors of the aluminide coatings with different treatments on the surface of Ni-based alloy at high temperature were investigated. The aluminide coating modified by three different methods (pretreatment, Pt-modification and both), and then all the specimens were oxidized in lab air with NaCl salt at 1050 °C. During cycle oxidation, oxide scales on the surface of the aluminide coatings presented different morphologies, composition and corrosion behaviors. The oxide scale on the surface of the as-received aluminide coating without any treatments showed a poor dense and a bad adherence. However, the oxide scale on the surface of the aluminide coating with both Pt-modification and pre-oxidation exhibited the best hot corrosion resistance. In the NaCl corrosion environment, different treatments resulted in different corrosion mechanisms. Without any treatments, the oxide scale with NaCl at high temperature occurred internal active oxidation, which could promote the corrosion process and form the pores in the oxide scale. The internal active oxidation also presented in the oxide scale on the surface of the aluminide coating with pre-oxidation. |
| first_indexed | 2024-03-12T15:43:33Z |
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| id | doaj.art-d57d0724d2b04b07bd9cb83906b066e2 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:43:33Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
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| series | Materials Research Express |
| spelling | doaj.art-d57d0724d2b04b07bd9cb83906b066e22023-08-09T15:51:54ZengIOP PublishingMaterials Research Express2053-15912020-01-0171111640210.1088/2053-1591/abc4b2Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °CJubo Peng0Taihong Huang1Peng Song2https://orcid.org/0000-0003-0437-8628Wenlang Huang3Yang He4Tao Ma5Bixiao Yang6Yuwei Liang7Minxuan Wu8Rong Chen9Yunnan Tin Group (Holding) Company Limited, 650000 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , 650093 Kunming, People’s Republic of ChinaThe hot corrosion behaviors of the aluminide coatings with different treatments on the surface of Ni-based alloy at high temperature were investigated. The aluminide coating modified by three different methods (pretreatment, Pt-modification and both), and then all the specimens were oxidized in lab air with NaCl salt at 1050 °C. During cycle oxidation, oxide scales on the surface of the aluminide coatings presented different morphologies, composition and corrosion behaviors. The oxide scale on the surface of the as-received aluminide coating without any treatments showed a poor dense and a bad adherence. However, the oxide scale on the surface of the aluminide coating with both Pt-modification and pre-oxidation exhibited the best hot corrosion resistance. In the NaCl corrosion environment, different treatments resulted in different corrosion mechanisms. Without any treatments, the oxide scale with NaCl at high temperature occurred internal active oxidation, which could promote the corrosion process and form the pores in the oxide scale. The internal active oxidation also presented in the oxide scale on the surface of the aluminide coating with pre-oxidation.https://doi.org/10.1088/2053-1591/abc4b2hot corrosionoxide scalePt modificationcorrosion mechanism |
| spellingShingle | Jubo Peng Taihong Huang Peng Song Wenlang Huang Yang He Tao Ma Bixiao Yang Yuwei Liang Minxuan Wu Rong Chen Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C Materials Research Express hot corrosion oxide scale Pt modification corrosion mechanism |
| title | Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C |
| title_full | Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C |
| title_fullStr | Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C |
| title_full_unstemmed | Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C |
| title_short | Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C |
| title_sort | effect of platinum and pre oxidation on the hot corrosion behavior of aluminide coating with nacl at 1050 °c |
| topic | hot corrosion oxide scale Pt modification corrosion mechanism |
| url | https://doi.org/10.1088/2053-1591/abc4b2 |
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