Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate
This study examines four types of Bi-xAg alloys (where x = 1.5, 2.5, 5.0, and 7.5 wt%) prepared using a casting method. The effects of Ag addition on the microstructure and properties of the alloys, as well as their deformation behavior at low strain rate (1.0 × 10−5s−1) were investigated. With the...
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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/S223878542501172X |
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| author | Yan Wang Zhe-Feng Xu Hui-Hui Zhang Meng-Ying Zhu Rui-Dong Yang Cai-Li Tian Chang-Zeng Fan Satoshi MotozuKa Kazuhiro Matsugi Jin-Ku Yu |
| author_facet | Yan Wang Zhe-Feng Xu Hui-Hui Zhang Meng-Ying Zhu Rui-Dong Yang Cai-Li Tian Chang-Zeng Fan Satoshi MotozuKa Kazuhiro Matsugi Jin-Ku Yu |
| author_sort | Yan Wang |
| collection | DOAJ |
| description | This study examines four types of Bi-xAg alloys (where x = 1.5, 2.5, 5.0, and 7.5 wt%) prepared using a casting method. The effects of Ag addition on the microstructure and properties of the alloys, as well as their deformation behavior at low strain rate (1.0 × 10−5s−1) were investigated. With the increase of Ag content, the microstructure variation and grain refinement are noticeable, the ultimate tensile strength increases, and the fracture strain first increases and then decreases, resulting in the highest fracture strain of 68.6 % at 5.0 wt% Ag content. The microstructure of Bi-1.5Ag (hypoeutectic alloy) is composed of well-developed dendritic primary Bi phase along with eutectic structure, the microstructure of Bi-2.5Ag (eutectic alloy) is composed of cellular eutectic structure, and the microstructure of Bi-5.0Ag and Bi-7.5Ag (hypereutectic alloy) is composed of primary Ag phase surrounded by a Bi phase and eutectic structure. Except for Bi-2.5Ag alloy, the strain distribution of other alloys is nonuniform. A considerable number of low-angle grain boundaries (LAGBs) appear in the eutectic structure with larger strain. The strain of the primary Bi phase was slight, the Bi twin structure is observed for the first time in Bi-1.5 Ag, which demonstrates excellent uniform plastic deformation capacity. The primary Ag phase causes stress concentration, which has an adverse effect on plastic deformation. The increase of Ag content is not positively correlated with the increase of fracture strain, which is mainly attributable to the size and distribution of primary Ag phase. |
| format | Article |
| id | doaj-art-32a5c85600764ed6ab144d580db277b6 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-32a5c85600764ed6ab144d580db277b62025-08-20T01:50:49ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01367870788010.1016/j.jmrt.2025.05.018Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rateYan Wang0Zhe-Feng Xu1Hui-Hui Zhang2Meng-Ying Zhu3Rui-Dong Yang4Cai-Li Tian5Chang-Zeng Fan6Satoshi MotozuKa7Kazuhiro Matsugi8Jin-Ku Yu9State Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, China; Hebei Key Lab for Optimizing Metal Product Technology and Performance, Yanshan University, Qinhuangdao, 066004, China; Corresponding author. State Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, China.State Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, China; Institute of Energy Resources (Hebei Academy of Sciences), Shijiazhuang, 050051, Hebei, ChinaState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaDepartment of Materials Science and Engineering, Kyushu Institute of Technology, Kitakyushu, 8048550, JapanGraduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 7398527, JapanState Key Lab of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao, 066004, ChinaThis study examines four types of Bi-xAg alloys (where x = 1.5, 2.5, 5.0, and 7.5 wt%) prepared using a casting method. The effects of Ag addition on the microstructure and properties of the alloys, as well as their deformation behavior at low strain rate (1.0 × 10−5s−1) were investigated. With the increase of Ag content, the microstructure variation and grain refinement are noticeable, the ultimate tensile strength increases, and the fracture strain first increases and then decreases, resulting in the highest fracture strain of 68.6 % at 5.0 wt% Ag content. The microstructure of Bi-1.5Ag (hypoeutectic alloy) is composed of well-developed dendritic primary Bi phase along with eutectic structure, the microstructure of Bi-2.5Ag (eutectic alloy) is composed of cellular eutectic structure, and the microstructure of Bi-5.0Ag and Bi-7.5Ag (hypereutectic alloy) is composed of primary Ag phase surrounded by a Bi phase and eutectic structure. Except for Bi-2.5Ag alloy, the strain distribution of other alloys is nonuniform. A considerable number of low-angle grain boundaries (LAGBs) appear in the eutectic structure with larger strain. The strain of the primary Bi phase was slight, the Bi twin structure is observed for the first time in Bi-1.5 Ag, which demonstrates excellent uniform plastic deformation capacity. The primary Ag phase causes stress concentration, which has an adverse effect on plastic deformation. The increase of Ag content is not positively correlated with the increase of fracture strain, which is mainly attributable to the size and distribution of primary Ag phase.http://www.sciencedirect.com/science/article/pii/S223878542501172XBi-xAg alloyLow strain rateDeformation behavior |
| spellingShingle | Yan Wang Zhe-Feng Xu Hui-Hui Zhang Meng-Ying Zhu Rui-Dong Yang Cai-Li Tian Chang-Zeng Fan Satoshi MotozuKa Kazuhiro Matsugi Jin-Ku Yu Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate Journal of Materials Research and Technology Bi-xAg alloy Low strain rate Deformation behavior |
| title | Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate |
| title_full | Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate |
| title_fullStr | Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate |
| title_full_unstemmed | Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate |
| title_short | Effect of Ag addition on the tensile deformation behavior of Bi based alloys at low strain rate |
| title_sort | effect of ag addition on the tensile deformation behavior of bi based alloys at low strain rate |
| topic | Bi-xAg alloy Low strain rate Deformation behavior |
| url | http://www.sciencedirect.com/science/article/pii/S223878542501172X |
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