Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten
The isothermal oxidation behavior of multi-component high entropy alloys (HEAs), namely AlCuCrFeMn, AlCuCrFeMnW0.05, AlCuCrFeMnW0.1, and AlCuCrFeMnW0.5, was investigated and the behavior of the oxide layer was analyzed. All four HEAs were synthesized via mechanical alloying (MA) and consolidated by...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422017860 |
| _version_ | 1828090124682919936 |
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| author | Sheetal Kumar Dewangan Devesh Kumar Ashutosh Sharma Byungmin Ahn Vinod Kumar |
| author_facet | Sheetal Kumar Dewangan Devesh Kumar Ashutosh Sharma Byungmin Ahn Vinod Kumar |
| author_sort | Sheetal Kumar Dewangan |
| collection | DOAJ |
| description | The isothermal oxidation behavior of multi-component high entropy alloys (HEAs), namely AlCuCrFeMn, AlCuCrFeMnW0.05, AlCuCrFeMnW0.1, and AlCuCrFeMnW0.5, was investigated and the behavior of the oxide layer was analyzed. All four HEAs were synthesized via mechanical alloying (MA) and consolidated by spark plasma sintering (SPS). The samples were oxidized in the air atmosphere at a temperature of 500 °C for 50 h. Based on the thermogravimetric result, the oxidation rate of the materials decreased with the increase of W content, and the values of parabolic constants were on a level similar to those observed in Ni–Al superalloys. However, higher content of W improves the continuity and internal position of the WO3 scale, which leads to increased oxidation resistance. Throughout the oxidation process, the composition of the phases of all materials changed significantly. The triple-thick oxide layer formed of Al2O3, Cr2O3, and WO3, developed in HEAs, has been carefully studied using the XPS technique. |
| first_indexed | 2024-04-11T05:52:17Z |
| format | Article |
| id | doaj.art-68d3e561eac34df2b66ce9761c52698e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T05:52:17Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-68d3e561eac34df2b66ce9761c52698e2022-12-22T04:42:02ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012149604968Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungstenSheetal Kumar Dewangan0Devesh Kumar1Ashutosh Sharma2Byungmin Ahn3Vinod Kumar4Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South KoreaDepartment of Mechanical Engineering, Poornima University, Jaipur, 303905, IndiaDepartment of Materials Science and Engineering, Ajou University, Suwon, 16499, South KoreaDepartment of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea; Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea; Corresponding author.Department of Metallurgy Engineering and Materials Science, Indian Institute of Technology (IIT), Indore, 453552, India; Corresponding author.The isothermal oxidation behavior of multi-component high entropy alloys (HEAs), namely AlCuCrFeMn, AlCuCrFeMnW0.05, AlCuCrFeMnW0.1, and AlCuCrFeMnW0.5, was investigated and the behavior of the oxide layer was analyzed. All four HEAs were synthesized via mechanical alloying (MA) and consolidated by spark plasma sintering (SPS). The samples were oxidized in the air atmosphere at a temperature of 500 °C for 50 h. Based on the thermogravimetric result, the oxidation rate of the materials decreased with the increase of W content, and the values of parabolic constants were on a level similar to those observed in Ni–Al superalloys. However, higher content of W improves the continuity and internal position of the WO3 scale, which leads to increased oxidation resistance. Throughout the oxidation process, the composition of the phases of all materials changed significantly. The triple-thick oxide layer formed of Al2O3, Cr2O3, and WO3, developed in HEAs, has been carefully studied using the XPS technique.http://www.sciencedirect.com/science/article/pii/S2238785422017860High-entropy alloyOxide resistanceNanocrystallinePowder metallurgy |
| spellingShingle | Sheetal Kumar Dewangan Devesh Kumar Ashutosh Sharma Byungmin Ahn Vinod Kumar Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten Journal of Materials Research and Technology High-entropy alloy Oxide resistance Nanocrystalline Powder metallurgy |
| title | Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten |
| title_full | Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten |
| title_fullStr | Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten |
| title_full_unstemmed | Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten |
| title_short | Enhancing the oxidation resistance of nanocrystalline high-entropy AlCuCrFeMn alloys by the addition of tungsten |
| title_sort | enhancing the oxidation resistance of nanocrystalline high entropy alcucrfemn alloys by the addition of tungsten |
| topic | High-entropy alloy Oxide resistance Nanocrystalline Powder metallurgy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422017860 |
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