Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting
Powder preparation, forming process, microstructure, oxide particles, and precipitates of FeCrAl-ODS (Oxide Dispersion Strengthened) alloy fabricated by Selective Laser Melting (SLM) were systematically studied in this paper. Results indicate that after adding 0.1 wt% Y₂O₃ via ball milling, the form...
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| Format: | Article |
| Language: | English |
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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/S2238785425000754 |
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| author | Shenghua Zhang Fudong Li Yu Wang Zhonghua Li Senming Zhang Yen-Ling Kuo Peikang Bai Bin Liu |
| author_facet | Shenghua Zhang Fudong Li Yu Wang Zhonghua Li Senming Zhang Yen-Ling Kuo Peikang Bai Bin Liu |
| author_sort | Shenghua Zhang |
| collection | DOAJ |
| description | Powder preparation, forming process, microstructure, oxide particles, and precipitates of FeCrAl-ODS (Oxide Dispersion Strengthened) alloy fabricated by Selective Laser Melting (SLM) were systematically studied in this paper. Results indicate that after adding 0.1 wt% Y₂O₃ via ball milling, the formed samples showed fewer defects and a 20 HV increase in hardness under the same parameters. The optimal process parameters were: laser power 250 W, scanning speed 900 mm/s, and hatch spacing 0.09 mm. The longitudinal section of the SLM-formed FeCrAl-ODS alloy exhibited a typical molten pool structure with a layered distribution characteristic of SLM-formed alloys. A higher laser coupling efficiency and melt pool temperature led to a lower proportion of subgrains composed of low-angle grain boundaries in the FeCrAl-ODS alloy. Independent α′ phase (Cr-rich phase) and α′ phase attached to Y₂O₃ were observed in the SLM-formed FeCrAl-ODS alloy. Thess results are of great significance for developing ODS alloys fabricated via additive manufacturing. |
| format | Article |
| id | doaj-art-28ec3568eafe42c48b6a107c45390759 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-28ec3568eafe42c48b6a107c453907592025-01-22T05:42:36ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013513691376Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser meltingShenghua Zhang0Fudong Li1Yu Wang2Zhonghua Li3Senming Zhang4Yen-Ling Kuo5Peikang Bai6Bin Liu7Shanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Corresponding author.Shanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR ChinaShanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR ChinaSchool of Mechanical Engineering, North University of China, Taiyuan, 030051, PR ChinaShanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR ChinaDepartment of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, JapanShanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China; Taiyuan University of Science and Technology, Taiyuan 030024, PR ChinaShanxi Key Laboratory of Controlled Metal Solidification and Precision Manufacturing, School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR ChinaPowder preparation, forming process, microstructure, oxide particles, and precipitates of FeCrAl-ODS (Oxide Dispersion Strengthened) alloy fabricated by Selective Laser Melting (SLM) were systematically studied in this paper. Results indicate that after adding 0.1 wt% Y₂O₃ via ball milling, the formed samples showed fewer defects and a 20 HV increase in hardness under the same parameters. The optimal process parameters were: laser power 250 W, scanning speed 900 mm/s, and hatch spacing 0.09 mm. The longitudinal section of the SLM-formed FeCrAl-ODS alloy exhibited a typical molten pool structure with a layered distribution characteristic of SLM-formed alloys. A higher laser coupling efficiency and melt pool temperature led to a lower proportion of subgrains composed of low-angle grain boundaries in the FeCrAl-ODS alloy. Independent α′ phase (Cr-rich phase) and α′ phase attached to Y₂O₃ were observed in the SLM-formed FeCrAl-ODS alloy. Thess results are of great significance for developing ODS alloys fabricated via additive manufacturing.http://www.sciencedirect.com/science/article/pii/S2238785425000754Selective laser meltingOxide dispersion strengthenedForming processMicrostructureOxide particles |
| spellingShingle | Shenghua Zhang Fudong Li Yu Wang Zhonghua Li Senming Zhang Yen-Ling Kuo Peikang Bai Bin Liu Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting Journal of Materials Research and Technology Selective laser melting Oxide dispersion strengthened Forming process Microstructure Oxide particles |
| title | Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting |
| title_full | Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting |
| title_fullStr | Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting |
| title_full_unstemmed | Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting |
| title_short | Study on forming process and microstructure of FeCrAl-ODS alloy by selective laser melting |
| title_sort | study on forming process and microstructure of fecral ods alloy by selective laser melting |
| topic | Selective laser melting Oxide dispersion strengthened Forming process Microstructure Oxide particles |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000754 |
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