Real-time observation of dynamic instability and adiabatic shear banding in pure titanium
Abstract Instability of various forms is a common phenomenon in condensed matter. The adiabatic shear bands (ASBs) of visco-plastic materials attract substantial attention in both academia and industry due to their critical impact on component safety, particularly under extreme impact loading condit...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-025-00863-7 |
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| author | Jianguo Li Jingui Zhong Longkang Li Jiaming Han Haosen Chen Qiuming Wei Tao Suo |
| author_facet | Jianguo Li Jingui Zhong Longkang Li Jiaming Han Haosen Chen Qiuming Wei Tao Suo |
| author_sort | Jianguo Li |
| collection | DOAJ |
| description | Abstract Instability of various forms is a common phenomenon in condensed matter. The adiabatic shear bands (ASBs) of visco-plastic materials attract substantial attention in both academia and industry due to their critical impact on component safety, particularly under extreme impact loading conditions. Its occurrence on an extremely small temporal and spatial scale makes prediction extremely challenging. Here, we developed an advanced in-situ testing system to capture the onset of instability and real-time evolution of deformation and temperature fields. We reported an anisotropic instability behavior in pure Ti with two distinct ASB development modes under dynamic compression in different directions. In one case, no significant temperature rise was detected until ASB propagation began; in the other, thermal softening significantly affected dynamic instability. This anisotropy is likely due to differences in dominant plasticity mechanisms. More critically, detailed experiments revealed that microstructural evolution and microscale damage are key drivers of localized plastic instability. |
| format | Article |
| id | doaj-art-d9e409d6e15e44dc8f4d9e0ed5cc6d12 |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-d9e409d6e15e44dc8f4d9e0ed5cc6d122025-08-20T04:01:36ZengNature PortfolioCommunications Materials2662-44432025-07-016111010.1038/s43246-025-00863-7Real-time observation of dynamic instability and adiabatic shear banding in pure titaniumJianguo Li0Jingui Zhong1Longkang Li2Jiaming Han3Haosen Chen4Qiuming Wei5Tao Suo6School of Aeronautics, Northwestern Polytechnical UniversitySchool of Aeronautics, Northwestern Polytechnical UniversityInstitute of Advanced Structure Technology, Beijing Institute of TechnologySchool of Aeronautics, Northwestern Polytechnical UniversityInstitute of Advanced Structure Technology, Beijing Institute of TechnologyDepartment of Mechanical Engineering, University of North Carolina at CharlotteSchool of Aeronautics, Northwestern Polytechnical UniversityAbstract Instability of various forms is a common phenomenon in condensed matter. The adiabatic shear bands (ASBs) of visco-plastic materials attract substantial attention in both academia and industry due to their critical impact on component safety, particularly under extreme impact loading conditions. Its occurrence on an extremely small temporal and spatial scale makes prediction extremely challenging. Here, we developed an advanced in-situ testing system to capture the onset of instability and real-time evolution of deformation and temperature fields. We reported an anisotropic instability behavior in pure Ti with two distinct ASB development modes under dynamic compression in different directions. In one case, no significant temperature rise was detected until ASB propagation began; in the other, thermal softening significantly affected dynamic instability. This anisotropy is likely due to differences in dominant plasticity mechanisms. More critically, detailed experiments revealed that microstructural evolution and microscale damage are key drivers of localized plastic instability.https://doi.org/10.1038/s43246-025-00863-7 |
| spellingShingle | Jianguo Li Jingui Zhong Longkang Li Jiaming Han Haosen Chen Qiuming Wei Tao Suo Real-time observation of dynamic instability and adiabatic shear banding in pure titanium Communications Materials |
| title | Real-time observation of dynamic instability and adiabatic shear banding in pure titanium |
| title_full | Real-time observation of dynamic instability and adiabatic shear banding in pure titanium |
| title_fullStr | Real-time observation of dynamic instability and adiabatic shear banding in pure titanium |
| title_full_unstemmed | Real-time observation of dynamic instability and adiabatic shear banding in pure titanium |
| title_short | Real-time observation of dynamic instability and adiabatic shear banding in pure titanium |
| title_sort | real time observation of dynamic instability and adiabatic shear banding in pure titanium |
| url | https://doi.org/10.1038/s43246-025-00863-7 |
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