Divergent evolution of slip banding in CrCoNi alloys
Abstract Metallic materials under high stress often exhibit deformation localization, manifesting as slip banding. Over seven decades ago, Frank and Read introduced the well-known model of dislocation multiplication at a source, explaining slip band formation. Here, we reveal two distinct types of s...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58480-4 |
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| _version_ | 1850145154448490496 |
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| author | Bijun Xie Hangman Chen Pengfei Wang Cheng Zhang Bin Xing Mingjie Xu Xin Wang Lorenzo Valdevit Julian Rimoli Xiaoqing Pan Penghui Cao |
| author_facet | Bijun Xie Hangman Chen Pengfei Wang Cheng Zhang Bin Xing Mingjie Xu Xin Wang Lorenzo Valdevit Julian Rimoli Xiaoqing Pan Penghui Cao |
| author_sort | Bijun Xie |
| collection | DOAJ |
| description | Abstract Metallic materials under high stress often exhibit deformation localization, manifesting as slip banding. Over seven decades ago, Frank and Read introduced the well-known model of dislocation multiplication at a source, explaining slip band formation. Here, we reveal two distinct types of slip bands (confined and extended) in compressed CrCoNi alloys through multi-scale testing and modeling from microscopic to atomic scales. The confined slip band, characterized by a thin glide zone, arises from the conventional process of repetitive full dislocation emissions at Frank–Read source. Contrary to the classical model, the extended band stems from slip-induced deactivation of dislocation sources, followed by consequent generation of new sources on adjacent planes, leading to rapid band thickening. Our findings provide insights into atomic-scale collective dislocation motion and microscopic deformation instability in advanced structural materials. |
| format | Article |
| id | doaj-art-e26afa9050794ea38b7393dc4884d96c |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-e26afa9050794ea38b7393dc4884d96c2025-08-20T02:28:09ZengNature PortfolioNature Communications2041-17232025-04-0116111110.1038/s41467-025-58480-4Divergent evolution of slip banding in CrCoNi alloysBijun Xie0Hangman Chen1Pengfei Wang2Cheng Zhang3Bin Xing4Mingjie Xu5Xin Wang6Lorenzo Valdevit7Julian Rimoli8Xiaoqing Pan9Penghui Cao10Department of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Material Science and Engineering, University of CaliforniaDepartment of Material Science and Engineering, University of CaliforniaDepartment of Material Science and Engineering, University of CaliforniaDepartment of Material Science and Engineering, University of CaliforniaDepartment of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Mechanical and Aerospace Engineering, University of CaliforniaDepartment of Material Science and Engineering, University of CaliforniaDepartment of Mechanical and Aerospace Engineering, University of CaliforniaAbstract Metallic materials under high stress often exhibit deformation localization, manifesting as slip banding. Over seven decades ago, Frank and Read introduced the well-known model of dislocation multiplication at a source, explaining slip band formation. Here, we reveal two distinct types of slip bands (confined and extended) in compressed CrCoNi alloys through multi-scale testing and modeling from microscopic to atomic scales. The confined slip band, characterized by a thin glide zone, arises from the conventional process of repetitive full dislocation emissions at Frank–Read source. Contrary to the classical model, the extended band stems from slip-induced deactivation of dislocation sources, followed by consequent generation of new sources on adjacent planes, leading to rapid band thickening. Our findings provide insights into atomic-scale collective dislocation motion and microscopic deformation instability in advanced structural materials.https://doi.org/10.1038/s41467-025-58480-4 |
| spellingShingle | Bijun Xie Hangman Chen Pengfei Wang Cheng Zhang Bin Xing Mingjie Xu Xin Wang Lorenzo Valdevit Julian Rimoli Xiaoqing Pan Penghui Cao Divergent evolution of slip banding in CrCoNi alloys Nature Communications |
| title | Divergent evolution of slip banding in CrCoNi alloys |
| title_full | Divergent evolution of slip banding in CrCoNi alloys |
| title_fullStr | Divergent evolution of slip banding in CrCoNi alloys |
| title_full_unstemmed | Divergent evolution of slip banding in CrCoNi alloys |
| title_short | Divergent evolution of slip banding in CrCoNi alloys |
| title_sort | divergent evolution of slip banding in crconi alloys |
| url | https://doi.org/10.1038/s41467-025-58480-4 |
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