Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion
Abstract This study comprehensively investigates the oxidation kinetics of laser powder bed fusion (LPBF) processed GH3536 superalloy at 950 °C. The oxidation kinetics and oxide film microstructure characteristics are analyzed and the underlying mechanism is discussed, by comparing with the conventi...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-10-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-023-00399-6 |
| _version_ | 1797557545662939136 |
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| author | S. L. Min H. W. Zhang H. Liu L. H. He S. Y. Qiu F. Z. Chu S. S. Huang Y. Q. Wang K. Zhang J. J. Liang J. Hou |
| author_facet | S. L. Min H. W. Zhang H. Liu L. H. He S. Y. Qiu F. Z. Chu S. S. Huang Y. Q. Wang K. Zhang J. J. Liang J. Hou |
| author_sort | S. L. Min |
| collection | DOAJ |
| description | Abstract This study comprehensively investigates the oxidation kinetics of laser powder bed fusion (LPBF) processed GH3536 superalloy at 950 °C. The oxidation kinetics and oxide film microstructure characteristics are analyzed and the underlying mechanism is discussed, by comparing with the conventionally manufactured wrought GH3536 samples under the exactly same test condition. The oxidation rate of LPBF samples is faster at initial stage and then tends to flatten out with increase of heating duration time. The finer and equiaxed chromia crystals formed in LPBF GH3536 surface can effectively improve the oxidation resistance comparing to the columnar structure chromia in wrought GH3536. The oxide film with excellent protection in LPBF GH3536 provides an important contribution to the application of GH3536 at high temperature. |
| first_indexed | 2024-03-10T17:18:28Z |
| format | Article |
| id | doaj.art-a2b96318f5444a4e8a5631ab09122972 |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-03-10T17:18:28Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-a2b96318f5444a4e8a5631ab091229722023-11-20T10:26:12ZengNature Portfolionpj Materials Degradation2397-21062023-10-017111410.1038/s41529-023-00399-6Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusionS. L. Min0H. W. Zhang1H. Liu2L. H. He3S. Y. Qiu4F. Z. Chu5S. S. Huang6Y. Q. Wang7K. Zhang8J. J. Liang9J. Hou10School of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologySchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologyShi-changxu Innovation Center for Advanced Materials, Institute of Metal ResearchSchool of Materials Science and Chemistry, University of Shanghai for Science and TechnologyAbstract This study comprehensively investigates the oxidation kinetics of laser powder bed fusion (LPBF) processed GH3536 superalloy at 950 °C. The oxidation kinetics and oxide film microstructure characteristics are analyzed and the underlying mechanism is discussed, by comparing with the conventionally manufactured wrought GH3536 samples under the exactly same test condition. The oxidation rate of LPBF samples is faster at initial stage and then tends to flatten out with increase of heating duration time. The finer and equiaxed chromia crystals formed in LPBF GH3536 surface can effectively improve the oxidation resistance comparing to the columnar structure chromia in wrought GH3536. The oxide film with excellent protection in LPBF GH3536 provides an important contribution to the application of GH3536 at high temperature.https://doi.org/10.1038/s41529-023-00399-6 |
| spellingShingle | S. L. Min H. W. Zhang H. Liu L. H. He S. Y. Qiu F. Z. Chu S. S. Huang Y. Q. Wang K. Zhang J. J. Liang J. Hou Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion npj Materials Degradation |
| title | Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion |
| title_full | Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion |
| title_fullStr | Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion |
| title_full_unstemmed | Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion |
| title_short | Oxidation kinetic behavior and microstructure mechanism of GH3536 alloy fabricated by laser powder bed fusion |
| title_sort | oxidation kinetic behavior and microstructure mechanism of gh3536 alloy fabricated by laser powder bed fusion |
| url | https://doi.org/10.1038/s41529-023-00399-6 |
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