A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys
This study investigates the impact of Gd elements on the enhancement of ductility in the Mg–Gd–Zr alloy. The deformation behavior at room temperature of the cast Mg–Gd–Zr alloy and the cast Mg–Zr alloy was examined using the EBSD-assisted slip trace method. The quantitative analysis of the initiatio...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423018641 |
| _version_ | 1827780569327468544 |
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| author | Tianxu Zheng Yaobo Hu Bin Jiang Liang Fu Fusheng Pan Aitao Tang |
| author_facet | Tianxu Zheng Yaobo Hu Bin Jiang Liang Fu Fusheng Pan Aitao Tang |
| author_sort | Tianxu Zheng |
| collection | DOAJ |
| description | This study investigates the impact of Gd elements on the enhancement of ductility in the Mg–Gd–Zr alloy. The deformation behavior at room temperature of the cast Mg–Gd–Zr alloy and the cast Mg–Zr alloy was examined using the EBSD-assisted slip trace method. The quantitative analysis of the initiation ratio of each slip system in the two alloys revealed that the Mg–Gd–Zr alloy had a higher ratio of non-basal slip systems. The experimental determination of the critical resolved shear stress (CRSS) ratios of non-basal slip to basal slip for both alloys indicated that the Gd elements could reduce this ratio, facilitating the initiation of more non-basal slip systems to accommodate strain. Furthermore, the segregation of Gd elements at grain boundaries was observed to enhance the grain boundary strength of the alloy, which is a significant factor in the enhancement of ductility. |
| first_indexed | 2024-03-11T15:06:14Z |
| format | Article |
| id | doaj.art-d68634486115472f8631296af633c282 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:06:14Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d68634486115472f8631296af633c2822023-10-30T06:03:15ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012620822102A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloysTianxu Zheng0Yaobo Hu1Bin Jiang2Liang Fu3Fusheng Pan4Aitao Tang5College of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing 400044, China; National Key Laboratory of Advanced Casting Technologies, Chongqing University, Chongqing 400044, China; Corresponding author. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China.College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing 400044, China; National Key Laboratory of Advanced Casting Technologies, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing 400044, China; Corresponding author. National Engineering Research Center for Magnesium Alloys, Chongqing 400044, China.College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing 400044, ChinaThis study investigates the impact of Gd elements on the enhancement of ductility in the Mg–Gd–Zr alloy. The deformation behavior at room temperature of the cast Mg–Gd–Zr alloy and the cast Mg–Zr alloy was examined using the EBSD-assisted slip trace method. The quantitative analysis of the initiation ratio of each slip system in the two alloys revealed that the Mg–Gd–Zr alloy had a higher ratio of non-basal slip systems. The experimental determination of the critical resolved shear stress (CRSS) ratios of non-basal slip to basal slip for both alloys indicated that the Gd elements could reduce this ratio, facilitating the initiation of more non-basal slip systems to accommodate strain. Furthermore, the segregation of Gd elements at grain boundaries was observed to enhance the grain boundary strength of the alloy, which is a significant factor in the enhancement of ductility.http://www.sciencedirect.com/science/article/pii/S2238785423018641Magnesium alloysDuctilityNon-basal slipGrain boundary cohesion |
| spellingShingle | Tianxu Zheng Yaobo Hu Bin Jiang Liang Fu Fusheng Pan Aitao Tang A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys Journal of Materials Research and Technology Magnesium alloys Ductility Non-basal slip Grain boundary cohesion |
| title | A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys |
| title_full | A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys |
| title_fullStr | A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys |
| title_full_unstemmed | A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys |
| title_short | A comparative study of deformation behaviors and ductility improvement in Mg–Gd–Zr and Mg–Zr cast alloys |
| title_sort | comparative study of deformation behaviors and ductility improvement in mg gd zr and mg zr cast alloys |
| topic | Magnesium alloys Ductility Non-basal slip Grain boundary cohesion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423018641 |
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