Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility
By suppressing SIM (stress induced martensitic) phase transformations, a strong and ductile beta TWIP (twinning induced plasticity) Ti-Mo based alloy was achieved, thanking to the coexistence of mechanical twinning ({112}<111> mode and {332} <113> mode) and dislocation glide. The alloy d...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_11069.pdf |
| _version_ | 1818571816510160896 |
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| author | Chen Guanfang Zhang Jinyong Fu Yangyang Chen Zheng Sun Fan Li Ju |
| author_facet | Chen Guanfang Zhang Jinyong Fu Yangyang Chen Zheng Sun Fan Li Ju |
| author_sort | Chen Guanfang |
| collection | DOAJ |
| description | By suppressing SIM (stress induced martensitic) phase transformations, a strong and ductile beta TWIP (twinning induced plasticity) Ti-Mo based alloy was achieved, thanking to the coexistence of mechanical twinning ({112}<111> mode and {332} <113> mode) and dislocation glide. The alloy displayed extra high yielding stress, stable strain-hardening rate and adequate ductility. In-situ traction/EBSD technique and TEM characterizations were employed to investigate the plastic deformation mechanism. The dislocation slipping was mediated by bimodal twinning mechanism, composed by high density nano-scale {112} twinning in micro {332} twinning grid. The study aims to exploit novel design strategy for strengthening ductile TWIP Ti alloys, attributed to multimodal twinning effects. |
| first_indexed | 2024-12-14T18:49:18Z |
| format | Article |
| id | doaj.art-a2bd79ee699442cc87db3bffca1e7a84 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T18:49:18Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-a2bd79ee699442cc87db3bffca1e7a842022-12-21T22:51:18ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013211106910.1051/matecconf/202032111069matecconf_ti2019_11069Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductilityChen Guanfang0Zhang Jinyong1Fu Yangyang2Chen Zheng3Sun Fan4Li Ju5School of Material Science and Engineering, China University of Mining and TechnologySchool of Material Science and Engineering, China University of Mining and TechnologySchool of Material Science and Engineering, China University of Mining and TechnologySchool of Material Science and Engineering, China University of Mining and TechnologyPSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie ParisDepartment of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of TechnologyBy suppressing SIM (stress induced martensitic) phase transformations, a strong and ductile beta TWIP (twinning induced plasticity) Ti-Mo based alloy was achieved, thanking to the coexistence of mechanical twinning ({112}<111> mode and {332} <113> mode) and dislocation glide. The alloy displayed extra high yielding stress, stable strain-hardening rate and adequate ductility. In-situ traction/EBSD technique and TEM characterizations were employed to investigate the plastic deformation mechanism. The dislocation slipping was mediated by bimodal twinning mechanism, composed by high density nano-scale {112} twinning in micro {332} twinning grid. The study aims to exploit novel design strategy for strengthening ductile TWIP Ti alloys, attributed to multimodal twinning effects.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_11069.pdfbeta ti-alloysdeformation mechanismsbimodal twinningdislocation slip |
| spellingShingle | Chen Guanfang Zhang Jinyong Fu Yangyang Chen Zheng Sun Fan Li Ju Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility MATEC Web of Conferences beta ti-alloys deformation mechanisms bimodal twinning dislocation slip |
| title | Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility |
| title_full | Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility |
| title_fullStr | Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility |
| title_full_unstemmed | Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility |
| title_short | Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility |
| title_sort | coexistence of multi deformation modes in beta ti alloys with improved yielding strength and ductility |
| topic | beta ti-alloys deformation mechanisms bimodal twinning dislocation slip |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_11069.pdf |
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