In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy
Present work focuses on the in-situ 316L/Cu alloy development by using laser beam powder bed fusion (PBF-LB) additive manufacturing. Influence of the most influential processing parameters i.e., the laser power, and the number of scans i.e., single melting (SM), double melting (DM) and triple meltin...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425004016 |
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| author | Rathinavelu Sokkalingam Mikael Åsberg Pavel Krakhmalev |
| author_facet | Rathinavelu Sokkalingam Mikael Åsberg Pavel Krakhmalev |
| author_sort | Rathinavelu Sokkalingam |
| collection | DOAJ |
| description | Present work focuses on the in-situ 316L/Cu alloy development by using laser beam powder bed fusion (PBF-LB) additive manufacturing. Influence of the most influential processing parameters i.e., the laser power, and the number of scans i.e., single melting (SM), double melting (DM) and triple melting (TM), on the in-situ alloying ability was studied. At the lowest laser power, 175 W, some 316L powder particles were unmelted and the Cu was not mixed properly into the matrix of 316L. Increasing the laser power from 175 W to 235 W, improves the complete melting of all the components in 316L/Cu powder mix and effective alloying of Cu into 316L with improved homogeneity in its distribution after solidification. However, there is minor copper rich banding at the track overlaps in SM sample prepared at 235 W. Employing of rescanning strategy further improves the homogeneity in distribution of copper owing to the clean and high-quality molten pool with better intermixing by strong molten pool convection. |
| format | Article |
| id | doaj-art-48a8a330b2ef417a8274c4273805531a |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-48a8a330b2ef417a8274c4273805531a2025-08-20T02:54:29ZengElsevierJournal of Materials Research and Technology2238-78542025-03-01356137614610.1016/j.jmrt.2025.02.154In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategyRathinavelu Sokkalingam0Mikael Åsberg1Pavel Krakhmalev2Corresponding author.; Department of Engineering and Physics, Faculty of Health, Science and Technology, Karlstad University, SE-651 88, Karlstad, SwedenDepartment of Engineering and Physics, Faculty of Health, Science and Technology, Karlstad University, SE-651 88, Karlstad, SwedenDepartment of Engineering and Physics, Faculty of Health, Science and Technology, Karlstad University, SE-651 88, Karlstad, SwedenPresent work focuses on the in-situ 316L/Cu alloy development by using laser beam powder bed fusion (PBF-LB) additive manufacturing. Influence of the most influential processing parameters i.e., the laser power, and the number of scans i.e., single melting (SM), double melting (DM) and triple melting (TM), on the in-situ alloying ability was studied. At the lowest laser power, 175 W, some 316L powder particles were unmelted and the Cu was not mixed properly into the matrix of 316L. Increasing the laser power from 175 W to 235 W, improves the complete melting of all the components in 316L/Cu powder mix and effective alloying of Cu into 316L with improved homogeneity in its distribution after solidification. However, there is minor copper rich banding at the track overlaps in SM sample prepared at 235 W. Employing of rescanning strategy further improves the homogeneity in distribution of copper owing to the clean and high-quality molten pool with better intermixing by strong molten pool convection.http://www.sciencedirect.com/science/article/pii/S2238785425004016Laser beam powder bed fusion (PBF-LB)316L/Cu alloyIn-situ alloyingLaser powerRescanning |
| spellingShingle | Rathinavelu Sokkalingam Mikael Åsberg Pavel Krakhmalev In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy Journal of Materials Research and Technology Laser beam powder bed fusion (PBF-LB) 316L/Cu alloy In-situ alloying Laser power Rescanning |
| title | In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy |
| title_full | In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy |
| title_fullStr | In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy |
| title_full_unstemmed | In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy |
| title_short | In-situ alloying of Cu in 316L stainless steel by PBF-LB: Influence of laser power and rescanning strategy |
| title_sort | in situ alloying of cu in 316l stainless steel by pbf lb influence of laser power and rescanning strategy |
| topic | Laser beam powder bed fusion (PBF-LB) 316L/Cu alloy In-situ alloying Laser power Rescanning |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425004016 |
| work_keys_str_mv | AT rathinavelusokkalingam insitualloyingofcuin316lstainlesssteelbypbflbinfluenceoflaserpowerandrescanningstrategy AT mikaelasberg insitualloyingofcuin316lstainlesssteelbypbflbinfluenceoflaserpowerandrescanningstrategy AT pavelkrakhmalev insitualloyingofcuin316lstainlesssteelbypbflbinfluenceoflaserpowerandrescanningstrategy |