Pub Date : 2026-02-10DOI: 10.1016/j.jma.2026.101981
Takumi Tsuji, Daisuke Ando, Yuji Sutou
{"title":"Dependence of the microstructure and mechanical properties of the LPSO-type Mg-Y-Zn alloy on the extrusion die angle and vortex shape","authors":"Takumi Tsuji, Daisuke Ando, Yuji Sutou","doi":"10.1016/j.jma.2026.101981","DOIUrl":"https://doi.org/10.1016/j.jma.2026.101981","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Achieving balanced degradation and biological performance in Mg-Ag-Mn alloys via PEO process: Role of Mn addition and post-casting heat treatment","authors":"You Lv, Yun Zhang, Xin Qiu, Valery Konstantinovich Sheleg, Zehua Dong, Xinxin Zhang","doi":"10.1016/j.jma.2026.101994","DOIUrl":"https://doi.org/10.1016/j.jma.2026.101994","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"16 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-09DOI: 10.1016/j.jma.2025.101961
Hong Xu, Hanrong Cai, Shuaifeng Chen, Wenlong Liu, Kai Guan, Xiuming Cheng, You Fang
{"title":"Twinning activation and dynamic recrystallization behavior of AZ61 tubes in electro-assisted bending","authors":"Hong Xu, Hanrong Cai, Shuaifeng Chen, Wenlong Liu, Kai Guan, Xiuming Cheng, You Fang","doi":"10.1016/j.jma.2025.101961","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101961","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"30 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-04DOI: 10.1016/j.jma.2025.101973
Diana C. Martinez, Anna Dobkowska, Alessia Paradiso, Jakub Jaroszewicz, Katarzyna Pucia, Artur Kamiński, Shin-ichi Inoue, Yoshihito Kawamura, Wojciech Święszkowski
While magnesium implants are already commercially available, exploring new manufacturing methods and alloy designs is essential to enhance their properties and clinical safety. This study assesses the in vitro and in vivo degradation of disc-shaped implants of the Mg-1Ca-0.5Zn-0.1Y-0.03Mn (at.%) alloy prepared by the rapidly solidified ribbon consolidation (RSRC) and hot extrusion of cast material (ingot metallurgy, IM). Electrochemical measurements and 28-day in vitro immersion tests were carried out under simulating physiological conditions. The cytotoxicity was evaluated by exposing L929 fibroblasts to RSRC Mg extracts. For the first time, the biocompatibility and degradation of the Mg-1Ca-0.5Zn-0.1Y-0.03Mn at.% alloy was assessed in a partial thickness calvaria defect model on male Wistar rats after 7 and 28 days of implantation. In vitro results showed that the RSRC alloy exhibited a more homogeneous microstructure and significantly lower corrosion rates compared to IM samples, with corrosion rates below 0.12 mm/year. The RSRC specimens exhibited lower pH and osmolality, and cytotoxicity assays confirmed that extracts from the RSRC alloy were non-toxic to L929 fibroblasts. In vivo, the RSRC alloys demonstrated slow degradation with corrosion rates remaining below 0.25 mm/year compared to pure Mg. Despite the presence of hydrogen gas cavities, new bone formation was observed suggesting that the RSRC alloy is a suitable material for the potential use as medical-grade absorbable Mg implants.
{"title":"Manufacturing-driven biocorrosion differences in the Mg-1Ca-0.5Zn-0.1Y-0.03Mn (at.%) alloy: An integrated in vitro and short-term in vivo evaluation","authors":"Diana C. Martinez, Anna Dobkowska, Alessia Paradiso, Jakub Jaroszewicz, Katarzyna Pucia, Artur Kamiński, Shin-ichi Inoue, Yoshihito Kawamura, Wojciech Święszkowski","doi":"10.1016/j.jma.2025.101973","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101973","url":null,"abstract":"While magnesium implants are already commercially available, exploring new manufacturing methods and alloy designs is essential to enhance their properties and clinical safety. This study assesses the <em>in vitro</em> and <em>in vivo</em> degradation of disc-shaped implants of the Mg-1Ca-0.5Zn-0.1Y-0.03Mn (at.%) alloy prepared by the rapidly solidified ribbon consolidation (RSRC) and hot extrusion of cast material (ingot metallurgy, IM). Electrochemical measurements and 28-day <em>in vitro</em> immersion tests were carried out under simulating physiological conditions. The cytotoxicity was evaluated by exposing L929 fibroblasts to RSRC Mg extracts. For the first time, the biocompatibility and degradation of the Mg-1Ca-0.5Zn-0.1Y-0.03Mn at.% alloy was assessed in a partial thickness calvaria defect model on male Wistar rats after 7 and 28 days of implantation. <em>In vitro</em> results showed that the RSRC alloy exhibited a more homogeneous microstructure and significantly lower corrosion rates compared to IM samples, with corrosion rates below 0.12 mm/year. The RSRC specimens exhibited lower pH and osmolality, and cytotoxicity assays confirmed that extracts from the RSRC alloy were non-toxic to L929 fibroblasts. <em>In vivo</em>, the RSRC alloys demonstrated slow degradation with corrosion rates remaining below 0.25 mm/year compared to pure Mg. Despite the presence of hydrogen gas cavities, new bone formation was observed suggesting that the RSRC alloy is a suitable material for the potential use as medical-grade absorbable Mg implants.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"176 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bending is a crucial operation in the sheet forming of Mg alloys for automotive and aerospace applications. In this work, three kinds of sheets from an AZ31 rolled plate, sheared at 0° (S0), 45° (S45), and 90° (S90) to the rolling direction, were subjected to three-point bending tests. In-situ digital image correlation (DIC) system was employed to capture the strain fields. Electron backscatter diffraction (EBSD) was used to examine the through-thickness microstructures. A crystal plasticity finite element method (CPFEM) incorporating twinning and slip mechanisms was developed to simulate the bending deformation. The texture effect on the neutral layer shift and twinning behaviors was systematically investigated in terms of both experiments and simulations. The results show that CPFEM effectively simulated the texture-dependent shifting behaviors of neutral layer and the associated twinning behaviors. Particularly, the spatial distributions of neutral layer across the entire bent plates were captured by both DIC and CPFEM. Additionally, some unusual twinning behaviors were analyzed in depth, such as the {10-12}-{10-12} secondary twins in S90, localized twin bands in S0, and the twin traces difference in S45. These findings reveal a close relationship between the neutral layer shift and twinning activity induced by the initial texture and strain levels. This work provides valuable insights into the bending deformation mechanisms of Mg alloys and has important implications for improving their formability and controlling springback.
{"title":"Texture effect on the neutral layer shift and twinning behavior in bending of Mg alloys: Crystal plasticity modeling and experiment","authors":"Weijie Ren, Chuan Tan, Renlong Xin, Xianxian Jiang, Huagui Huang, Xianhua Chen, Fusheng Pan","doi":"10.1016/j.jma.2025.101967","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101967","url":null,"abstract":"Bending is a crucial operation in the sheet forming of Mg alloys for automotive and aerospace applications. In this work, three kinds of sheets from an AZ31 rolled plate, sheared at 0° (S0), 45° (S45), and 90° (S90) to the rolling direction, were subjected to three-point bending tests. In-situ digital image correlation (DIC) system was employed to capture the strain fields. Electron backscatter diffraction (EBSD) was used to examine the through-thickness microstructures. A crystal plasticity finite element method (CPFEM) incorporating twinning and slip mechanisms was developed to simulate the bending deformation. The texture effect on the neutral layer shift and twinning behaviors was systematically investigated in terms of both experiments and simulations. The results show that CPFEM effectively simulated the texture-dependent shifting behaviors of neutral layer and the associated twinning behaviors. Particularly, the spatial distributions of neutral layer across the entire bent plates were captured by both DIC and CPFEM. Additionally, some unusual twinning behaviors were analyzed in depth, such as the {10-12}-{10-12} secondary twins in S90, localized twin bands in S0, and the twin traces difference in S45. These findings reveal a close relationship between the neutral layer shift and twinning activity induced by the initial texture and strain levels. This work provides valuable insights into the bending deformation mechanisms of Mg alloys and has important implications for improving their formability and controlling springback.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"303 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-24DOI: 10.1016/j.jma.2025.101972
Min Zhan, Zhongmin Xiao, Xue Li, Xiangyu Wang, Yajun Dai, Chang Liu, Yao Chen, Qingyuan Wang, Chao He
{"title":"Crack initiation behavior of extruded Mg-Gd-Y-Zn-Zr alloy containing long-period stacking ordered lamellae under very high cycle fatigue at high temperature","authors":"Min Zhan, Zhongmin Xiao, Xue Li, Xiangyu Wang, Yajun Dai, Chang Liu, Yao Chen, Qingyuan Wang, Chao He","doi":"10.1016/j.jma.2025.101972","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101972","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"60 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146048511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The corrosion resistance of base metal, laser-arc hybrid welded AZ31B magnesium alloys with and without addition of carbon nanotubes (CNTs) was compared. The corrosion behaviors and the underlying improvement mechanism of CNTs were systematically investigated. The introduction of CNTs effectively refined the grains, weakened the texture and enhanced the microstructure homogeneity of the weld, which contributed to the enhancement of corrosion resistance. Specifically, the corrosion rates of hydrogen evolution and weight loss of weld decreased by >30% after the addition of CNTs, and the corrosion products were denser due to the formation of Al2O3 passive film. The corrosion current density and polarization resistance of weld with addition of CNTs were 1.220 µA/cm2 and 7155 Ω·cm2, respectively, in contrast to 2.480 µA/cm2 and approximately 269.5 Ω·cm2 for the weld without CNTs. Besides, the content of precipitates in the weld increased from 0.60% to 1.76% after the addition of CNTs, which can release Al3+ ions, promoting the formation of a dense Al2O3 film that serves to protect the metal matrix from further degradation.
{"title":"Improvement in corrosion resistance of magnesium weld by addition of carbon nanotubes","authors":"Yongkang Gao, Lianyong Xu, Kangda Hao, Yongdian Han, Lei Zhao, Wenjing Ren","doi":"10.1016/j.jma.2025.101970","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101970","url":null,"abstract":"The corrosion resistance of base metal, laser-arc hybrid welded AZ31B magnesium alloys with and without addition of carbon nanotubes (CNTs) was compared. The corrosion behaviors and the underlying improvement mechanism of CNTs were systematically investigated. The introduction of CNTs effectively refined the grains, weakened the texture and enhanced the microstructure homogeneity of the weld, which contributed to the enhancement of corrosion resistance. Specifically, the corrosion rates of hydrogen evolution and weight loss of weld decreased by >30% after the addition of CNTs, and the corrosion products were denser due to the formation of Al<sub>2</sub>O<sub>3</sub> passive film. The corrosion current density and polarization resistance of weld with addition of CNTs were 1.220 µA/cm<sup>2</sup> and 7155 Ω·cm<sup>2</sup>, respectively, in contrast to 2.480 µA/cm<sup>2</sup> and approximately 269.5 Ω·cm<sup>2</sup> for the weld without CNTs. Besides, the content of precipitates in the weld increased from 0.60% to 1.76% after the addition of CNTs, which can release Al<sup>3+</sup> ions, promoting the formation of a dense Al<sub>2</sub>O<sub>3</sub> film that serves to protect the metal matrix from further degradation.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"214 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146042926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic enhancement of strength and ductility in Mg-7Sn alloy through combined optimization of dual-texture and low-angle grain boundary structures","authors":"Lin Tong, Jing Jiang, Guangli Bi, Yuandong Li, Tijun Chen, Xiaoru Zhang, Daqing Fang, Xiangdong Ding","doi":"10.1016/j.jma.2025.101965","DOIUrl":"https://doi.org/10.1016/j.jma.2025.101965","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"30 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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