Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts
Low utilization efficiency of powders limits the large-scale application of Laser Melting Deposition (LMD) and discussions on this topic are far from enough. So, this study was done with the aim to enhance powder reuse. Changes of Inconel 625 powders (compositions, morphology, size, flowability and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424003788 |
| _version_ | 1827310725009244160 |
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| author | Pei Zhang Min Jiang Benli Luan |
| author_facet | Pei Zhang Min Jiang Benli Luan |
| author_sort | Pei Zhang |
| collection | DOAJ |
| description | Low utilization efficiency of powders limits the large-scale application of Laser Melting Deposition (LMD) and discussions on this topic are far from enough. So, this study was done with the aim to enhance powder reuse. Changes of Inconel 625 powders (compositions, morphology, size, flowability and sphericity etc.) in the 4 times of reusing were clarified. And the resulted effects on microstructures, inclusions and mechanical properties (microhardness and tensile properties) of deposited parts were also elucidated. It was found that reused powders were severely oxidized and indicated poorer flowability, with particle sizes increased after 1 and 2 times of reusing while decreased after 3 and 4 times of reusing. Number densities of inclusions in the deposited parts increased while grain sizes decreased in the powder reusing. Obvious changes in microhardness and tensile strength in deposited parts were not seen but the ductility only slightly decreased. The obtained results were meaningful to indicate that powder reusing was feasible, which would help save resources and reduce costs, thus to promote the competition of LMD. |
| first_indexed | 2024-03-07T22:54:16Z |
| format | Article |
| id | doaj.art-62bef58f27f44862baefdd74ed51c79f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:04:33Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-62bef58f27f44862baefdd74ed51c79f2024-03-24T06:58:15ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012937823794Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited partsPei Zhang0Min Jiang1Benli Luan2National Center for Materials Service Safety, University of Science and Technology Beijing, 100083, Beijing, PR ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, 100083, Beijing, PR China; Corresponding author.National Center for Materials Service Safety, University of Science and Technology Beijing, 100083, Beijing, PR China; Chemistry Department, Western University, London, Ontario, N6A 5B7, Canada; Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, Zhejiang, 315200, PR China; Corresponding author. National Center for Materials Service Safety, University of Science and Technology Beijing, 100083, Beijing, PR China.Low utilization efficiency of powders limits the large-scale application of Laser Melting Deposition (LMD) and discussions on this topic are far from enough. So, this study was done with the aim to enhance powder reuse. Changes of Inconel 625 powders (compositions, morphology, size, flowability and sphericity etc.) in the 4 times of reusing were clarified. And the resulted effects on microstructures, inclusions and mechanical properties (microhardness and tensile properties) of deposited parts were also elucidated. It was found that reused powders were severely oxidized and indicated poorer flowability, with particle sizes increased after 1 and 2 times of reusing while decreased after 3 and 4 times of reusing. Number densities of inclusions in the deposited parts increased while grain sizes decreased in the powder reusing. Obvious changes in microhardness and tensile strength in deposited parts were not seen but the ductility only slightly decreased. The obtained results were meaningful to indicate that powder reusing was feasible, which would help save resources and reduce costs, thus to promote the competition of LMD.http://www.sciencedirect.com/science/article/pii/S2238785424003788Laser melting depositionPowder reusingPowder oxidationInclusionMicrostructureMechanical properties |
| spellingShingle | Pei Zhang Min Jiang Benli Luan Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts Journal of Materials Research and Technology Laser melting deposition Powder reusing Powder oxidation Inclusion Microstructure Mechanical properties |
| title | Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| title_full | Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| title_fullStr | Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| title_full_unstemmed | Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| title_short | Influence of Inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| title_sort | influence of inconel 625 alloy powder reusing on feedstock characteristics and mechanical properties of deposited parts |
| topic | Laser melting deposition Powder reusing Powder oxidation Inclusion Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424003788 |
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