Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition
The influence of trace (3 vol%) silicon carbide particle (SiCp) addition on the hot deformation behavior of the Mg-5wt.%Zn (Mg–5Zn) alloy was studied through the hot compression test. The activation energy of the Mg–5Zn alloy is decreased by the addition of trace SiCp, which is due to the high dislo...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-01-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420320706 |
| _version_ | 1818452348559687680 |
|---|---|
| author | Ding-ge Fan Kun-kun Deng Cui-ju Wang Kai-bo Nie Quan-xin Shi Wei Liang |
| author_facet | Ding-ge Fan Kun-kun Deng Cui-ju Wang Kai-bo Nie Quan-xin Shi Wei Liang |
| author_sort | Ding-ge Fan |
| collection | DOAJ |
| description | The influence of trace (3 vol%) silicon carbide particle (SiCp) addition on the hot deformation behavior of the Mg-5wt.%Zn (Mg–5Zn) alloy was studied through the hot compression test. The activation energy of the Mg–5Zn alloy is decreased by the addition of trace SiCp, which is due to the high dislocations density in particle deformation zone (PDZ) around SiCp stimulates the pipe diffusion. Moreover, the activation energy of the composite also decreases with the increase of the size of PDZ (dPDZ). Additionally, the optimum deformation condition of 3 vol% 20 μm SiCp/Mg–5Zn composite is 693 K and 0.1–0.01s−1 according to the processing map. The instability region of the processing map at 543 K and 1 s−1 disappears with the increase of strain, which is associated with the inhibitory effect of trace SiCp on {101¯2} extension twins and promoting effect on the dynamic recrystallization (DRX) within {101¯1} contraction twins and {101¯1}-{101¯2} double twins by introducing flow localization. Moreover, the DRX behavior of the 3 vol% 20 μm SiCp/Mg–5Zn composite was analyzed by EBSD technology. The DRX mechanisms of the composite at 543 K and 1 s−1 are continuous dynamic recrystallization (CDRX), particle stimulated nucleation (PSN) and twining dynamic recrystallization (TDRX). With the increase of temperature, the DRX mechanisms are discontinuous dynamic recrystallization (DDRX) and PSN. |
| first_indexed | 2024-12-14T21:21:40Z |
| format | Article |
| id | doaj.art-3b5503d7e9784bd39a079ad64820549d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-14T21:21:40Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-3b5503d7e9784bd39a079ad64820549d2022-12-21T22:46:56ZengElsevierJournal of Materials Research and Technology2238-78542021-01-0110422437Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp additionDing-ge Fan0Kun-kun Deng1Cui-ju Wang2Kai-bo Nie3Quan-xin Shi4Wei Liang5Shanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR ChinaShanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, PR China; Corresponding author.Shanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR ChinaShanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, PR ChinaShanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR ChinaShanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, PR ChinaThe influence of trace (3 vol%) silicon carbide particle (SiCp) addition on the hot deformation behavior of the Mg-5wt.%Zn (Mg–5Zn) alloy was studied through the hot compression test. The activation energy of the Mg–5Zn alloy is decreased by the addition of trace SiCp, which is due to the high dislocations density in particle deformation zone (PDZ) around SiCp stimulates the pipe diffusion. Moreover, the activation energy of the composite also decreases with the increase of the size of PDZ (dPDZ). Additionally, the optimum deformation condition of 3 vol% 20 μm SiCp/Mg–5Zn composite is 693 K and 0.1–0.01s−1 according to the processing map. The instability region of the processing map at 543 K and 1 s−1 disappears with the increase of strain, which is associated with the inhibitory effect of trace SiCp on {101¯2} extension twins and promoting effect on the dynamic recrystallization (DRX) within {101¯1} contraction twins and {101¯1}-{101¯2} double twins by introducing flow localization. Moreover, the DRX behavior of the 3 vol% 20 μm SiCp/Mg–5Zn composite was analyzed by EBSD technology. The DRX mechanisms of the composite at 543 K and 1 s−1 are continuous dynamic recrystallization (CDRX), particle stimulated nucleation (PSN) and twining dynamic recrystallization (TDRX). With the increase of temperature, the DRX mechanisms are discontinuous dynamic recrystallization (DDRX) and PSN.http://www.sciencedirect.com/science/article/pii/S2238785420320706Trace SiCpHot deformation mechanismConstitutive analysisProcessing mapDynamic recrystallization |
| spellingShingle | Ding-ge Fan Kun-kun Deng Cui-ju Wang Kai-bo Nie Quan-xin Shi Wei Liang Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition Journal of Materials Research and Technology Trace SiCp Hot deformation mechanism Constitutive analysis Processing map Dynamic recrystallization |
| title | Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition |
| title_full | Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition |
| title_fullStr | Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition |
| title_full_unstemmed | Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition |
| title_short | Hot deformation behavior and dynamic recrystallization mechanism of an Mg-5wt.%Zn alloy with trace SiCp addition |
| title_sort | hot deformation behavior and dynamic recrystallization mechanism of an mg 5wt zn alloy with trace sicp addition |
| topic | Trace SiCp Hot deformation mechanism Constitutive analysis Processing map Dynamic recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420320706 |
| work_keys_str_mv | AT dinggefan hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition AT kunkundeng hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition AT cuijuwang hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition AT kaibonie hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition AT quanxinshi hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition AT weiliang hotdeformationbehavioranddynamicrecrystallizationmechanismofanmg5wtznalloywithtracesicpaddition |