Hetero-deformation-induced stress in additively manufactured 316L stainless steel
Heterogeneous cellular structure combined with bimodal grain structure contributed to the high hetero-deformation-induced (HDI) stress in selective laser melted 316L stainless steel (SLMed 316L SS) and high grain boundary density at molten pool boundaries and thick cellular boundaries inside grains...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2020-10-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2020.1775149 |
| _version_ | 1819171078979715072 |
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| author | Decheng Kong Chaofang Dong Xiaoqing Ni Zhang Liang Cheng Man Xiaogang Li |
| author_facet | Decheng Kong Chaofang Dong Xiaoqing Ni Zhang Liang Cheng Man Xiaogang Li |
| author_sort | Decheng Kong |
| collection | DOAJ |
| description | Heterogeneous cellular structure combined with bimodal grain structure contributed to the high hetero-deformation-induced (HDI) stress in selective laser melted 316L stainless steel (SLMed 316L SS) and high grain boundary density at molten pool boundaries and thick cellular boundaries inside grains both acted as hard domains. However, the HDI hardening rate caused by cellular boundary was lower compared with the traditional grain boundary due to its weaker dislocation motion resistance. Under high deformation, massive deformation-induced twins penetrated the cellular boundary and distorted its configuration; therefore, grain boundary heterogeneity dominated the overall HDI stress in SLMed 316L SS after large deformation. |
| first_indexed | 2024-12-22T19:45:35Z |
| format | Article |
| id | doaj.art-07bd73b813ff4fafbc93e7a4036af4a6 |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-22T19:45:35Z |
| publishDate | 2020-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-07bd73b813ff4fafbc93e7a4036af4a62022-12-21T18:14:41ZengTaylor & Francis GroupMaterials Research Letters2166-38312020-10-0181039039710.1080/21663831.2020.17751491775149Hetero-deformation-induced stress in additively manufactured 316L stainless steelDecheng Kong0Chaofang Dong1Xiaoqing Ni2Zhang Liang3Cheng Man4Xiaogang Li5Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology BeijingBeijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology BeijingShanghai Engineering Research Center of 3D Printing Materials, Shanghai Research Institute of MaterialsShanghai Engineering Research Center of 3D Printing Materials, Shanghai Research Institute of MaterialsSchool of Materials Science and Engineering, Ocean University of ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology BeijingHeterogeneous cellular structure combined with bimodal grain structure contributed to the high hetero-deformation-induced (HDI) stress in selective laser melted 316L stainless steel (SLMed 316L SS) and high grain boundary density at molten pool boundaries and thick cellular boundaries inside grains both acted as hard domains. However, the HDI hardening rate caused by cellular boundary was lower compared with the traditional grain boundary due to its weaker dislocation motion resistance. Under high deformation, massive deformation-induced twins penetrated the cellular boundary and distorted its configuration; therefore, grain boundary heterogeneity dominated the overall HDI stress in SLMed 316L SS after large deformation.http://dx.doi.org/10.1080/21663831.2020.1775149selective laser melting316l stainless steelhdi stresscellular structure |
| spellingShingle | Decheng Kong Chaofang Dong Xiaoqing Ni Zhang Liang Cheng Man Xiaogang Li Hetero-deformation-induced stress in additively manufactured 316L stainless steel Materials Research Letters selective laser melting 316l stainless steel hdi stress cellular structure |
| title | Hetero-deformation-induced stress in additively manufactured 316L stainless steel |
| title_full | Hetero-deformation-induced stress in additively manufactured 316L stainless steel |
| title_fullStr | Hetero-deformation-induced stress in additively manufactured 316L stainless steel |
| title_full_unstemmed | Hetero-deformation-induced stress in additively manufactured 316L stainless steel |
| title_short | Hetero-deformation-induced stress in additively manufactured 316L stainless steel |
| title_sort | hetero deformation induced stress in additively manufactured 316l stainless steel |
| topic | selective laser melting 316l stainless steel hdi stress cellular structure |
| url | http://dx.doi.org/10.1080/21663831.2020.1775149 |
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