High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy
By introducing heterogeneous lamella-structure, we obtained a superior strength-ductility synergy in Mg-alloy associated with excellent strain-hardening ability, i.e. yield strength of ∼251 MPa, tensile strength of ∼393 MPa and elongation of ∼23%. By using advanced characterization techniques, we sh...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2023-03-01
|
| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2022.2133976 |
| _version_ | 1797988764314763264 |
|---|---|
| author | Tong Wang Min Zha Chunfeng Du Hai-Long Jia Cheng Wang Kai Guan Yipeng Gao Hui-Yuan Wang |
| author_facet | Tong Wang Min Zha Chunfeng Du Hai-Long Jia Cheng Wang Kai Guan Yipeng Gao Hui-Yuan Wang |
| author_sort | Tong Wang |
| collection | DOAJ |
| description | By introducing heterogeneous lamella-structure, we obtained a superior strength-ductility synergy in Mg-alloy associated with excellent strain-hardening ability, i.e. yield strength of ∼251 MPa, tensile strength of ∼393 MPa and elongation of ∼23%. By using advanced characterization techniques, we showed that strengthening was mainly caused by the non-uniform distribution of hetero-deformation induced (HDI) stress associated with grain-boundary disclinations, which are mediated by heterogeneous multi-grain interactions. Induced by grain-boundary disclinations and intergranular slip transfers, a variety of abnormal deformation modes have been activated，which contributed significantly to enhanced ductility. This work suggests a new avenue to evade strength-ductility trade-off dilemma in Mg-alloys. |
| first_indexed | 2024-04-11T08:08:02Z |
| format | Article |
| id | doaj.art-5915edb5acee41d998cee5161db3019b |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-04-11T08:08:02Z |
| publishDate | 2023-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-5915edb5acee41d998cee5161db3019b2022-12-22T04:35:27ZengTaylor & Francis GroupMaterials Research Letters2166-38312023-03-0111318719510.1080/21663831.2022.2133976High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloyTong Wang0Min Zha1Chunfeng Du2Hai-Long Jia3Cheng Wang4Kai Guan5Yipeng Gao6Hui-Yuan Wang7State Key Laboratory of Superhard Materials, Jilin University, Changchun, People’s Republic of ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun, People’s Republic of ChinaKey Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun, People’s Republic of ChinaKey Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun, People’s Republic of ChinaKey Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun, People’s Republic of ChinaKey Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun, People’s Republic of ChinaKey Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering, Nanling Campus, Jilin University, Changchun, People’s Republic of ChinaState Key Laboratory of Superhard Materials, Jilin University, Changchun, People’s Republic of ChinaBy introducing heterogeneous lamella-structure, we obtained a superior strength-ductility synergy in Mg-alloy associated with excellent strain-hardening ability, i.e. yield strength of ∼251 MPa, tensile strength of ∼393 MPa and elongation of ∼23%. By using advanced characterization techniques, we showed that strengthening was mainly caused by the non-uniform distribution of hetero-deformation induced (HDI) stress associated with grain-boundary disclinations, which are mediated by heterogeneous multi-grain interactions. Induced by grain-boundary disclinations and intergranular slip transfers, a variety of abnormal deformation modes have been activated，which contributed significantly to enhanced ductility. This work suggests a new avenue to evade strength-ductility trade-off dilemma in Mg-alloys.https://www.tandfonline.com/doi/10.1080/21663831.2022.2133976Mg-alloyheterogeneous lamella-structurestrength-ductility synergydeformation behavior |
| spellingShingle | Tong Wang Min Zha Chunfeng Du Hai-Long Jia Cheng Wang Kai Guan Yipeng Gao Hui-Yuan Wang High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy Materials Research Letters Mg-alloy heterogeneous lamella-structure strength-ductility synergy deformation behavior |
| title | High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy |
| title_full | High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy |
| title_fullStr | High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy |
| title_full_unstemmed | High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy |
| title_short | High strength and high ductility achieved in a heterogeneous lamella-structured magnesium alloy |
| title_sort | high strength and high ductility achieved in a heterogeneous lamella structured magnesium alloy |
| topic | Mg-alloy heterogeneous lamella-structure strength-ductility synergy deformation behavior |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2022.2133976 |
| work_keys_str_mv | AT tongwang highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT minzha highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT chunfengdu highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT hailongjia highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT chengwang highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT kaiguan highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT yipenggao highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy AT huiyuanwang highstrengthandhighductilityachievedinaheterogeneouslamellastructuredmagnesiumalloy |