Journal of Magnesium and Alloys最新文献_第7页

Synergistic deformation of bimodal-structured AZ80 Mg alloy for excellent strength-ductility synergy via regulating the heterogeneity level 双峰组织AZ80镁合金的协同变形通过调节非均质性水平获得优异的强度-塑性协同效应

IF 17.6 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.03.006

Guofeng Liu, Runxia Li, Biao Wang, Zhenmin Wang, Hongfei Zhang

{"title":"Synergistic deformation of bimodal-structured AZ80 Mg alloy for excellent strength-ductility synergy via regulating the heterogeneity level","authors":"Guofeng Liu, Runxia Li, Biao Wang, Zhenmin Wang, Hongfei Zhang","doi":"10.1016/j.jma.2025.03.006","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.006","url":null,"abstract":"The trade-off between strength and ductility has long been a challenge for Mg alloy. To address this issue, bimodal-structured AZ80 Mg alloys with varying heterogeneity levels were fabricated via low-temperature extrusion in this work. The results reveal the microstructure comprising second-phase particle (SP<sub>p</sub>, <em>β-</em>Mg<sub>17</sub>Al<sub>12</sub> and Mg<sub>3</sub>Mn<sub>2</sub>Al<sub>18</sub>)-reinforced fine grains (FGs) FGs and SP<sub>p</sub>-free coarse grains (CGs), with the heterogeneity level decreasing as extrusion temperature increases. As the heterogeneity level decreases, the synergistic deformation capacity initially improves, reaching a maximum at the moderate heterogeneity level of 0.31 GPa and 0.238, and then declines. This exceptional capacity is attributed to the hetero-deformation induced (HDI) stress, which effectively alleviates the strain gradients by activating 〈<em>c</em> + <em>a</em>〉 dislocations and non-basal 〈<em>a</em>〉 dislocations during deformation. An optimal combination of 287 MPa in yield strength, 393 MPa in ultimate tensile strength, and 14.96 % in elongation is achieved in the alloy with a moderate heterogeneity level. The excellent strength-ductility synergy originates from the enhanced capacity of dislocations accumulation driven by remarkable capacity of synergistic deformation and the synergistic strengthening mechanisms. This work provides a new insight into the design of bimodal structure to produce high-performance Mg alloys.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"225 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745204","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}

引用次数: 0

Enhancing strength at elevated temperatures via dynamic high-density mobile dislocations in Mg alloys 通过镁合金的动态高密度移动位错在高温下增强强度

IF 17.6 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.03.004

Mingyu Fan, Ye Cui, Xin Zhou, Junming Chen, Yang Zhang, Lixin Sun, Jamieson Brechtl, Daqing Fang, Qian Li, Qingqing Ding, Hongbin Bei, Peter K. Liaw, Yanzhuo Xue, Xun-Li Wang, Yang Lu, Zhongwu Zhang

{"title":"Enhancing strength at elevated temperatures via dynamic high-density mobile dislocations in Mg alloys","authors":"Mingyu Fan, Ye Cui, Xin Zhou, Junming Chen, Yang Zhang, Lixin Sun, Jamieson Brechtl, Daqing Fang, Qian Li, Qingqing Ding, Hongbin Bei, Peter K. Liaw, Yanzhuo Xue, Xun-Li Wang, Yang Lu, Zhongwu Zhang","doi":"10.1016/j.jma.2025.03.004","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.004","url":null,"abstract":"Dislocation strengthening, as one of the methods to simultaneously enhance the room temperature strength and ductility of alloys, does not achieve the desired strengthening and plasticity effect during elevated-temperature deformation. Here, we report a novel strategy to boost the dislocation multiplication and accumulation during deformation at elevated temperatures through dynamic strain aging (DSA). With the introduction of the rare-earth element Ho in Mg-Y-Zn alloy, Ho atoms diffuse toward dislocations during deformation at elevated temperatures, provoking the DSA effect, which increases the dislocation density significantly via the interactions of mobile dislocations and Ho atoms. The resulting alloy achieves a great enhancement of dislocation hardening and obtains the dual benefits of high strength and good ductility simultaneously at high homologous temperatures. The present work provides an effective strategy to enhancing the strength and ductility for elevated-temperature materials.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"33 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745207","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}

引用次数: 0

Decreasing the mechanical anisotropy of the forged Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr alloy by modulating blocky LPSO particles using multi-directional forging 通过多向锻造调制块状LPSO颗粒降低锻造Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr合金的力学各向异性

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2022.10.024

Jiyu Li, Fulin Wang, Jian Zeng, Chaoyu Zhao, Chen Qian, Fenghua Wang, Shuai Dong, Li Jin, Jie Dong

{"title":"Decreasing the mechanical anisotropy of the forged Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr alloy by modulating blocky LPSO particles using multi-directional forging","authors":"Jiyu Li, Fulin Wang, Jian Zeng, Chaoyu Zhao, Chen Qian, Fenghua Wang, Shuai Dong, Li Jin, Jie Dong","doi":"10.1016/j.jma.2022.10.024","DOIUrl":"10.1016/j.jma.2022.10.024","url":null,"abstract":"<div><div>The blocky LPSO particles were modulated by single-directional and multi-directional forging, and the effect of blocky LPSO particles on the anisotropy of mechanical properties of Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr alloy forged parts was investigated. In the present work, 3D processing maps are established, and the forming domain that is both stable and power efficient is in the temperature range from 430 to 500 °C and strain rate range from 0.001 to 0.06 s <sup>− 1</sup>, which is used to guide the single-directional forging (SDF) and multi-directional forging (MDF) experiments. The tensile mechanical properties reveal that the blocky LPSO particles have an influence on the mechanical anisotropy, especially in terms of the elongation anisotropy. The blocky LPSO particles after the MDF process have a more regular shape and smaller size and are homogeneously distributed, which is responsible for the low anisotropy of the elongation. In addition, the age-hardening capability of the MDF part is higher than that of the SDF part.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1495-1505"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47660447","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}

引用次数: 0

Preparation of the high compressive performance special-shaped Csf/AZ91D composite part using the liquid-solid extrusion following vacuum pressure infiltration process 利用液固挤压真空压力浸渗工艺制备高抗压性能异形 Csf/AZ91D 复合材料部件

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.04.034

Baolin Chen , Lehua Qi , Jiawei Fu , Qian Zhang , Jiming Zhou

{"title":"Preparation of the high compressive performance special-shaped Csf/AZ91D composite part using the liquid-solid extrusion following vacuum pressure infiltration process","authors":"Baolin Chen , Lehua Qi , Jiawei Fu , Qian Zhang , Jiming Zhou","doi":"10.1016/j.jma.2024.04.034","DOIUrl":"10.1016/j.jma.2024.04.034","url":null,"abstract":"<div><div>To meet the increased demand for light-weight and high-performance special-shaped load bearing parts in automotive industry, the short carbon fiber reinforced magnesium matrix composite (C<sub>sf</sub>/Mg) part with complex configuration features and abrupt cross-sectional transitions was fabricated by liquid-solid extrusion following vacuum pressure infiltration process (LSEVI). Near-net forming schemes of both the special-shaped fiber preform and composite part were proposed. The effect of process parameters on the forming quality of the composite part was discussed. Meanwhile, the microstructures and compressive properties in different regions of the part were analyzed. The results show that the forward forming scheme provides the special-shaped fiber preform with no surface defects. For the C<sub>sf</sub>/AZ91D part, its internal microstructures show that the infiltration of liquid magnesium is sufficient and uniform. The compressive strength of the composite part can reach up to 487 MPa, corresponding to ∼40% increase compared to 335 MPa of the AZ91D alloy. The average compressive strain of composites is less than 10%, which is about 50% of that of the AZ91D alloy. When the fiber orientation is parallel to the shear direction on the shear plane, the load-bearing capacity of the fiber is much higher than that of the fiber perpendicular to the shear direction. This work not only provides a convenient approach to fabricate special-shaped preform with high fiber volume fraction, but also gives a demonstration for the near-net forming of C<sub>sf</sub>/Mg parts with excellent material isotropy and compressive properties.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1617-1629"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141136584","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}

引用次数: 0

Magnesium-reinforced sandwich structured composite membranes promote osteogenesis 镁增强夹层结构复合膜促进成骨

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.008

Feilong Wang , Yunjiao He , Dong Xiang , Xuenan Liu , Fan Yang , Yulin Hou , Weiliang Wu , Dandan Xia , Yongxiang Xu , Yunsong Liu

{"title":"Magnesium-reinforced sandwich structured composite membranes promote osteogenesis","authors":"Feilong Wang , Yunjiao He , Dong Xiang , Xuenan Liu , Fan Yang , Yulin Hou , Weiliang Wu , Dandan Xia , Yongxiang Xu , Yunsong Liu","doi":"10.1016/j.jma.2025.02.008","DOIUrl":"10.1016/j.jma.2025.02.008","url":null,"abstract":"<div><div>Guided bone regeneration (GBR) membranes are extensively utilized in dental implantation. However, the existing GBR membranes showed insufficient space-maintaining capability and poor bone promoting ability, affecting the effectiveness of clinical bone augmentation, which in turn resulted in poor implant outcomes and even failure. In this study, we designed a novel magnesium reinforced sandwich structured composite membrane, consisting of an inner magnesium scaffold and a PLGA/collagen hybrid (mixture of poly(lactic-co-glycolic acid) and collagen) top and bottom layer. The magnesium scaffold provided mechanical support and released Mg<sup>2+</sup> to enhance osteogenesis. The PLGA/collagen hybrid regulated membrane degradation and improved biocompatibility, promoting cell adhesion and proliferation (<em>P</em> < 0.05). The PLGA/collagen hybrid regulated the release of magnesium ions, such that the MgP10C (mass ratios of PLGA and collagen =100:10) group showed the best in vitro osteogenic effect. Further mechanism exploration confirmed that MgP10C membranes significantly enhanced bone defect repair via the MAPK/ERK 1/2 pathway by the Mg<sup>2+</sup> released from the composite membranes. In rat calvarial defect and rabbit alveolar defect model (<em>P</em> < 0.05), the in vivo osteogenic effect of the MgP10C group was superior to that of other groups. Finite element analysis models validated the support effect of composite membranes, demonstrating lower stress and a significant reduction in strain on the bone graft in the MgP10C group. In conclusion, the magnesium-reinforced sandwich structure composite membrane, with its space-maintaining properties and osteoinductive activity, represents a new strategy for GBR and enhancing osteogenic potential that meets directly clinical needs.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1561-1578"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560724","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}

引用次数: 0

Deep drawing of magnesium alloys: A review 镁合金深拉深研究进展

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.015

Jalumedi Babu , Anjaiah Madarapu , Deepa Kodali , M. Venkata Ramana

{"title":"Deep drawing of magnesium alloys: A review","authors":"Jalumedi Babu , Anjaiah Madarapu , Deepa Kodali , M. Venkata Ramana","doi":"10.1016/j.jma.2025.02.015","DOIUrl":"10.1016/j.jma.2025.02.015","url":null,"abstract":"<div><div>Magnesium alloy, the lightest structural metal substance currently known, has garnered a great deal of interest in recent times. Magnesium alloys not only offer high specific strength, high specific stiffness, and low density, but they also have outstanding anti-electromagnetic interference properties, shock absorption, are easy to recycle, and are biocompatible. It has a wide range of uses, including automotive, aerospace, military, and biological. Magnesium alloy's compact hexagonal structure creates few slip systems at room temperature, leading to low plasticity and limited applicability. Deep drawing of magnesium alloys is a major procedure in the aerospace and automotive sectors due to the high strength-to-weight ratio. This paper presents all the aspects of deep drawing of magnesium alloys, covering the innovative methods of deep drawing, factors influencing the performance of deep drawing, simulation and modeling, optimization of deep drawing, and the microstructural changes during deep drawing and its impact on mechanical properties. Finally, the challenges and scope for future research are explored.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1428-1475"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841458","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}

引用次数: 0

The threat of hemorrhage from pelvic fractures: Clinicians seeking new solutions based on biomedical Mg implant 骨盆骨折出血的威胁：临床医生寻求基于生物医学Mg植入物的新解决方案

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.007

Qinghui Han , Xiaonong Zhang , Wenhui Wang , Kaiyang Wang , Tao Wang

{"title":"The threat of hemorrhage from pelvic fractures: Clinicians seeking new solutions based on biomedical Mg implant","authors":"Qinghui Han , Xiaonong Zhang , Wenhui Wang , Kaiyang Wang , Tao Wang","doi":"10.1016/j.jma.2025.02.007","DOIUrl":"10.1016/j.jma.2025.02.007","url":null,"abstract":"<div><div>Biodegradable magnesium (Mg) materials offer significant advantages in trauma care due to their degradable nature and superior mechanical properties. This study reports the first successful use of degradable Mg clips in damage control surgery for pelvic fractures, addressing challenges associated with severe hemorrhage and high mortality rates (30–70%). A 57-year-old male patient with pelvic fractures and traumatic shock underwent open reduction and internal fixation with Mg clips. At a six-month follow-up, imaging confirmed fracture healing, clip degradation, and no signs of rebleeding or infection, highlighting their effectiveness in precise hemorrhage control. Unlike traditional titanium clips, Mg clips degrade over time, eliminating the need for removal and reducing infection risks. This innovative approach combines Mg clips with conventional gauze packing, offering a more effective and safer alternative for managing pelvic trauma. Future large-scale clinical trials are necessary to validate these findings and establish Mg clips as a global standard for pelvic fracture treatment. Their portability and functionality hold promise for advancing emergency trauma care.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1476-1479"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518094","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}

引用次数: 0

Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy 双相镁-锂-铝-锌合金的时效响应与机理

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.03.017

Yuchuan Huang, Jiawei Sun, Fangzhou Qi, Youjie Guo, Guohua Wu, Wencai Liu

引用次数: 0

Synergistic inhibition effect of fluoride and caffeiate on LAZ931 Mg alloy corrosion 氟和咖啡因对LAZ931镁合金腐蚀的协同缓蚀作用

IF 17.6 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.03.015

Yishun Tian, Tiancai Kong, Shuya Mao, Di Mei, Zhipeng Liu, Jinxue Liu, Yang Xiao, Liguo Wang, Shijie Zhu, Shaokang Guan

引用次数: 0

A quasi-in-situ EBSD study on mechanical response and twin variant selection of a hot-rolled AZ31 magnesium alloy 热轧AZ31镁合金力学响应及双晶型选择的准原位EBSD研究

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.021

Huicong Chen, Chenwei Shao, Lijun Wang, Hao Chen, Yu Zou

{"title":"A quasi-in-situ EBSD study on mechanical response and twin variant selection of a hot-rolled AZ31 magnesium alloy","authors":"Huicong Chen, Chenwei Shao, Lijun Wang, Hao Chen, Yu Zou","doi":"10.1016/j.jma.2025.02.021","DOIUrl":"10.1016/j.jma.2025.02.021","url":null,"abstract":"<div><div>The selection of twin variants plays a critical role in shaping the deformation texture and mechanical properties of magnesium alloys that are limited by slip systems and diverse twinning modes. In this study, we investigated the twin variant selection and the effect of twinning activity on the strain hardening of a hot-rolled AZ31 magnesium alloy by quasi-in-situ EBSD. Moreover, the Schmid factors and the displacement gradient tensors were computed to evaluate the activation of twin variants. The results reveal that the yield strength increased progressively after each deformation step, driven by grain subdivision and texture hardening induced by extension <span><math><mrow><mo>{</mo><mrow><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn></mrow><mo>}</mo></mrow></math></span> twinning and the Basinski effect at large strains. The nucleation and growth of the <span><math><mrow><mo>{</mo><mrow><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn></mrow><mo>}</mo></mrow></math></span> twins occurred either sequentially or simultaneously during the plastic deformation. At low plastic strains, the activation of most twin variants followed the high Schmid factor criterion while the other twin variants with lower Schmid factors were activated due to the interactions with preexisting twins characterized by high misorientation angles (around 60°). Additionally, this non-Schmid factor scenario was also attributed to low coordinated strain requirements from neighboring grains, showing the critical role of local deformation accommodation in the twinning process. These findings advance the fundamental understanding of the twin variant selection and its implications for the microstructure-property relationship in magnesium alloys for structural applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1549-1560"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713192","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}

引用次数: 0