The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting
This paper aims to investigate the unique substructure and grain growth of 316L stainless steel processed by selective laser melting (SLM) and clarify the mechanism. Results showed that the grain orientation on the x-z plane parallel to the build direction was the same type as the y-z plane, which a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac21ea |
| _version_ | 1797746840338169856 |
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| author | Dengcui Yang Yanjun Yin Xinfeng Kan Yan Zhao Zhengzhi Zhao Jiquan Sun |
| author_facet | Dengcui Yang Yanjun Yin Xinfeng Kan Yan Zhao Zhengzhi Zhao Jiquan Sun |
| author_sort | Dengcui Yang |
| collection | DOAJ |
| description | This paper aims to investigate the unique substructure and grain growth of 316L stainless steel processed by selective laser melting (SLM) and clarify the mechanism. Results showed that the grain orientation on the x-z plane parallel to the build direction was the same type as the y-z plane, which all grow along the heat flow direction to form elongated columnar grains passing through the multi-layer fusion line. The epitaxial growth direction of grains changed abruptly with the vary of temperature gradient direction. Moreover, to expound the substructure formation based on solidification theory, a finite element model was established to obtain the distribution map of cooling rate G × R and solidified morphology G/R. |
| first_indexed | 2024-03-12T15:42:31Z |
| format | Article |
| id | doaj.art-d4356baaba124f75b74ef6797f920d92 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:42:31Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-d4356baaba124f75b74ef6797f920d922023-08-09T15:55:13ZengIOP PublishingMaterials Research Express2053-15912021-01-018909651010.1088/2053-1591/ac21eaThe mechanism of substructure formation and grain growth 316L stainless steel by selective laser meltingDengcui Yang0https://orcid.org/0000-0002-1045-5960Yanjun Yin1Xinfeng Kan2https://orcid.org/0000-0002-9986-6271Yan Zhao3Zhengzhi Zhao4https://orcid.org/0000-0002-0324-5164Jiquan Sun5https://orcid.org/0000-0001-6502-9136Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China; Beijing Engineering Technology Research Center of Special Steel for Traffic and Energy, Beijing, 100083, People’s Republic of ChinaJiangsu University of Science and Technology , Zhenjiang, Jiangsu, 212000, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China; Beijing Engineering Technology Research Center of Special Steel for Traffic and Energy, Beijing, 100083, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China; Beijing Engineering Technology Research Center of Special Steel for Traffic and Energy, Beijing, 100083, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of ChinaThis paper aims to investigate the unique substructure and grain growth of 316L stainless steel processed by selective laser melting (SLM) and clarify the mechanism. Results showed that the grain orientation on the x-z plane parallel to the build direction was the same type as the y-z plane, which all grow along the heat flow direction to form elongated columnar grains passing through the multi-layer fusion line. The epitaxial growth direction of grains changed abruptly with the vary of temperature gradient direction. Moreover, to expound the substructure formation based on solidification theory, a finite element model was established to obtain the distribution map of cooling rate G × R and solidified morphology G/R.https://doi.org/10.1088/2053-1591/ac21ea316L stainless steelselective laser meltingsubstructuresolidification theorygrain epitaxial growth |
| spellingShingle | Dengcui Yang Yanjun Yin Xinfeng Kan Yan Zhao Zhengzhi Zhao Jiquan Sun The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting Materials Research Express 316L stainless steel selective laser melting substructure solidification theory grain epitaxial growth |
| title | The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting |
| title_full | The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting |
| title_fullStr | The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting |
| title_full_unstemmed | The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting |
| title_short | The mechanism of substructure formation and grain growth 316L stainless steel by selective laser melting |
| title_sort | mechanism of substructure formation and grain growth 316l stainless steel by selective laser melting |
| topic | 316L stainless steel selective laser melting substructure solidification theory grain epitaxial growth |
| url | https://doi.org/10.1088/2053-1591/ac21ea |
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