Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure
To explore the effect of operational service temperatures on the fatigue properties of fine-grained magnesium, we processed magnesium using multi-pass rolling at about 200oC and then tested the samples under a cyclic tension-tension loading at various temperatures. The selected testing temperatures...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425008932 |
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| author | Qihui Li Qizhen Li |
| author_facet | Qihui Li Qizhen Li |
| author_sort | Qihui Li |
| collection | DOAJ |
| description | To explore the effect of operational service temperatures on the fatigue properties of fine-grained magnesium, we processed magnesium using multi-pass rolling at about 200oC and then tested the samples under a cyclic tension-tension loading at various temperatures. The selected testing temperatures are room temperature, 0oC, and −60oC. The loading condition is almost the same for all selected temperatures. The tested samples were prepared for microstructural characterization and observed using the electron backscatter diffraction technique. The fatigue testing and microstructural observation results were analyzed to obtain the stress-strain curves, the fatigue lives, the orientation information of grains, the 0001 and 10-10 pole figures, the inverse pole figures, the misorientation angles of boundaries, the kernel average misorientation distributions and geometrically necessary dislocation density distributions for all studied testing conditions. The fatigue life at room temperature is the longest and that at 0oC is the shortest among all testing temperatures. The geometrically necessary dislocation density distributions indicate that dislocation activities were substantial for the sample tested at 0oC and moderate for the samples tested at room temperature and −60oC. The misorientation angle distribution curves show that very limited tensile twins are in the samples tested at room temperature and 0oC, and an extensive number of tensile twins are in the sample tested at −60oC. Thus, tensile twinning is a critical deformation mode for the testing at −60oC, and this mode is not active for the testing at room temperature and 0oC. |
| format | Article |
| id | doaj-art-e136ebaa028e4f7490acbef6d00a7f59 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-e136ebaa028e4f7490acbef6d00a7f592025-08-20T03:10:28ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01364255426810.1016/j.jmrt.2025.04.072Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structureQihui Li0Qizhen Li1School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, USA; Department of Computer Science, Huanggang Normal University, Huanggang, ChinaSchool of Mechanical and Materials Engineering, Washington State University, Pullman, WA, USA; Corresponding author.To explore the effect of operational service temperatures on the fatigue properties of fine-grained magnesium, we processed magnesium using multi-pass rolling at about 200oC and then tested the samples under a cyclic tension-tension loading at various temperatures. The selected testing temperatures are room temperature, 0oC, and −60oC. The loading condition is almost the same for all selected temperatures. The tested samples were prepared for microstructural characterization and observed using the electron backscatter diffraction technique. The fatigue testing and microstructural observation results were analyzed to obtain the stress-strain curves, the fatigue lives, the orientation information of grains, the 0001 and 10-10 pole figures, the inverse pole figures, the misorientation angles of boundaries, the kernel average misorientation distributions and geometrically necessary dislocation density distributions for all studied testing conditions. The fatigue life at room temperature is the longest and that at 0oC is the shortest among all testing temperatures. The geometrically necessary dislocation density distributions indicate that dislocation activities were substantial for the sample tested at 0oC and moderate for the samples tested at room temperature and −60oC. The misorientation angle distribution curves show that very limited tensile twins are in the samples tested at room temperature and 0oC, and an extensive number of tensile twins are in the sample tested at −60oC. Thus, tensile twinning is a critical deformation mode for the testing at −60oC, and this mode is not active for the testing at room temperature and 0oC.http://www.sciencedirect.com/science/article/pii/S2238785425008932MagnesiumFatigue lifeTesting temperatureDislocation motionTensile twinning |
| spellingShingle | Qihui Li Qizhen Li Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure Journal of Materials Research and Technology Magnesium Fatigue life Testing temperature Dislocation motion Tensile twinning |
| title | Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| title_full | Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| title_fullStr | Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| title_full_unstemmed | Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| title_short | Effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| title_sort | effect of service temperature on cyclic mechanical behavior of magnesium with fine grained structure |
| topic | Magnesium Fatigue life Testing temperature Dislocation motion Tensile twinning |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425008932 |
| work_keys_str_mv | AT qihuili effectofservicetemperatureoncyclicmechanicalbehaviorofmagnesiumwithfinegrainedstructure AT qizhenli effectofservicetemperatureoncyclicmechanicalbehaviorofmagnesiumwithfinegrainedstructure |