Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature
Oxidation resistance at elevated temperature is one of the important parameters to evaluate high temperature of materials. To study effect of chromium on oxidation resistance of refractory high entropy alloy, CrxMoNbTiV (x = 0.2, 0.4, 0.6, 0.8 and 1.0) refractory high entropy alloys with different a...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425009676 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849710956403228672 |
|---|---|
| author | Qin Xu Jiantong Wang Chengyuan Guo Qi Wang Jiading Zhao Yajun Yin Ruirun Chen |
| author_facet | Qin Xu Jiantong Wang Chengyuan Guo Qi Wang Jiading Zhao Yajun Yin Ruirun Chen |
| author_sort | Qin Xu |
| collection | DOAJ |
| description | Oxidation resistance at elevated temperature is one of the important parameters to evaluate high temperature of materials. To study effect of chromium on oxidation resistance of refractory high entropy alloy, CrxMoNbTiV (x = 0.2, 0.4, 0.6, 0.8 and 1.0) refractory high entropy alloys with different addition of chromium were prepared. The high temperature oxidation properties of different alloys at 800 °C are tested, and the phase constitution, microstructure characteristics and evolution of oxidation film were investigated. Results show that after oxidation at 800 °C for 100h, weight gains of CrxMoNbTiV alloys are decreased with increasing of chromium, and the weight gain is from 59.2 mg/cm2 to 8.8 mg/cm2 with increasing chromium from 0.2 to 1.0. The thickness of the oxidation film is decreased with increasing of chromium, and that of C0.2rMoNbTiV and CrMoNbTiV alloy is 310 μm and 65 μm, respectively. The surface of oxidation film gets smoother with increasing of chromium, and the amount of dense products CrVNbO6 and Ti4Cr3Nb3O2 increases with increasing of chromium, while that of porous products Nb9VO25 and V2Nb6O19 decreases with increasing of chromium, consequently, the oxidation properties of CrxMoNbTiV alloys is improved. The porous products of CrMoNbTiV with addition of chromium by 1.0 disappear, and the oxidation film of CrMoNbTiV is consisted of compact TiO2, Ti4Cr3Nb3O2 and CrVNbO6, which can protect the inner microstructure of alloy, therefore the oxidation resistance is significantly improved. |
| format | Article |
| id | doaj-art-2729402a2ec04ab7a19af7bbd89bdcb8 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-2729402a2ec04ab7a19af7bbd89bdcb82025-08-20T03:14:45ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01365050506210.1016/j.jmrt.2025.04.145Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperatureQin Xu0Jiantong Wang1Chengyuan Guo2Qi Wang3Jiading Zhao4Yajun Yin5Ruirun Chen6School of Mechanic and Electrical Engineering, Henan University of Technology, Zhengzhou, 450001, ChinaSchool of Mechanic and Electrical Engineering, Henan University of Technology, Zhengzhou, 450001, ChinaSchool of Mechanic and Electrical Engineering, Henan University of Technology, Zhengzhou, 450001, ChinaNational Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, ChinaSchool of Mechanic and Electrical Engineering, Henan University of Technology, Zhengzhou, 450001, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, ChinaNational Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author.Oxidation resistance at elevated temperature is one of the important parameters to evaluate high temperature of materials. To study effect of chromium on oxidation resistance of refractory high entropy alloy, CrxMoNbTiV (x = 0.2, 0.4, 0.6, 0.8 and 1.0) refractory high entropy alloys with different addition of chromium were prepared. The high temperature oxidation properties of different alloys at 800 °C are tested, and the phase constitution, microstructure characteristics and evolution of oxidation film were investigated. Results show that after oxidation at 800 °C for 100h, weight gains of CrxMoNbTiV alloys are decreased with increasing of chromium, and the weight gain is from 59.2 mg/cm2 to 8.8 mg/cm2 with increasing chromium from 0.2 to 1.0. The thickness of the oxidation film is decreased with increasing of chromium, and that of C0.2rMoNbTiV and CrMoNbTiV alloy is 310 μm and 65 μm, respectively. The surface of oxidation film gets smoother with increasing of chromium, and the amount of dense products CrVNbO6 and Ti4Cr3Nb3O2 increases with increasing of chromium, while that of porous products Nb9VO25 and V2Nb6O19 decreases with increasing of chromium, consequently, the oxidation properties of CrxMoNbTiV alloys is improved. The porous products of CrMoNbTiV with addition of chromium by 1.0 disappear, and the oxidation film of CrMoNbTiV is consisted of compact TiO2, Ti4Cr3Nb3O2 and CrVNbO6, which can protect the inner microstructure of alloy, therefore the oxidation resistance is significantly improved.http://www.sciencedirect.com/science/article/pii/S2238785425009676Refractory high entropy alloyMicrostructure characteristicsPhase constitutionOxidation propertiesElevated temperature |
| spellingShingle | Qin Xu Jiantong Wang Chengyuan Guo Qi Wang Jiading Zhao Yajun Yin Ruirun Chen Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature Journal of Materials Research and Technology Refractory high entropy alloy Microstructure characteristics Phase constitution Oxidation properties Elevated temperature |
| title | Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature |
| title_full | Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature |
| title_fullStr | Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature |
| title_full_unstemmed | Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature |
| title_short | Oxidation properties and microstructure evolution of oxidation layer for CrxNbMoTiV refractory high entropy alloys at elevated temperature |
| title_sort | oxidation properties and microstructure evolution of oxidation layer for crxnbmotiv refractory high entropy alloys at elevated temperature |
| topic | Refractory high entropy alloy Microstructure characteristics Phase constitution Oxidation properties Elevated temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425009676 |
| work_keys_str_mv | AT qinxu oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT jiantongwang oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT chengyuanguo oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT qiwang oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT jiadingzhao oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT yajunyin oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature AT ruirunchen oxidationpropertiesandmicrostructureevolutionofoxidationlayerforcrxnbmotivrefractoryhighentropyalloysatelevatedtemperature |