Journal of Magnesium and Alloys最新文献

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Interfacial kinetics governed by Mg volatility and donor-induced magnesium vacancies in magnesium-based systems 镁基体系中由镁挥发性和供体诱导的镁空位控制的界面动力学
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-15 DOI: 10.1016/j.jma.2026.102112
Hye-Jeong Jang, Su-Jin Ha, Young Kook Moon, Hyun-Ae Cha, Jong-Jin Choi, Byung-Dong Hahn, Kyung Song, Hao Zhou, Tianli Feng, Cheol-Woo Ahn
{"title":"Interfacial kinetics governed by Mg volatility and donor-induced magnesium vacancies in magnesium-based systems","authors":"Hye-Jeong Jang,&nbsp;Su-Jin Ha,&nbsp;Young Kook Moon,&nbsp;Hyun-Ae Cha,&nbsp;Jong-Jin Choi,&nbsp;Byung-Dong Hahn,&nbsp;Kyung Song,&nbsp;Hao Zhou,&nbsp;Tianli Feng,&nbsp;Cheol-Woo Ahn","doi":"10.1016/j.jma.2026.102112","DOIUrl":"10.1016/j.jma.2026.102112","url":null,"abstract":"<div><div>This study reveals that the inherently low boiling point of elemental magnesium has a substantial impact on material behavior under elevated temperature conditions. A combination of magnesium volatility and the controlled introduction of donor dopants alters defect populations, enabling a distinct mechanism that facilitates densification at reduced temperatures. Thermodynamic analysis identifies a regime near the magnesium boiling point in which volatilization becomes appreciable, resulting in localized magnesium loss at surfaces. Under these conditions, donor dopants promote the formation of magnesium vacancies, thereby shifting local defect equilibria. The coupled effects of magnesium vaporization and vacancy generation give rise to an interfacial state consistent with enhanced atomic mobility, leading to accelerated density increase that departs from conventional expectations based on equilibrium phase relations. In addition, samples processed near or above the characteristic temperature of magnesium exhibit behavior in thermal transport that is not solely determined by bulk lattice properties but is influenced by the interplay of volatility and defect state. Notably, materials processed via this mechanism demonstrate thermal transport performance that matches or exceeds that of reference single-crystal benchmarks, underscoring the effectiveness of this defect-mediated approach. These findings offer new insight into the role of elemental volatility and engineered defect chemistry in magnesium-based systems.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102112"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Texture weakening mediated by designed low-temperature rolling in a dilute magnesium alloy 设计低温轧制引起的稀镁合金织构弱化
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-04-23 DOI: 10.1016/j.jma.2026.102075
Hong Ning, Cheng Wang, Jian Wang, Kai Guan, Xinyu Xu, Hui-Yuan Wang
{"title":"Texture weakening mediated by designed low-temperature rolling in a dilute magnesium alloy","authors":"Hong Ning,&nbsp;Cheng Wang,&nbsp;Jian Wang,&nbsp;Kai Guan,&nbsp;Xinyu Xu,&nbsp;Hui-Yuan Wang","doi":"10.1016/j.jma.2026.102075","DOIUrl":"10.1016/j.jma.2026.102075","url":null,"abstract":"<div><div>High-temperature rolling effectively weakens the texture of Mg sheets, but it leads to grain coarsening and high energy cost. This study introduces a low-temperature (100 °C) rolling in dilute Mg-1Zn-1Sn-0.2Ca (ZTX110) alloy capable of achieving weakened texture. Zn/Sn/Ca additions promote the accumulation of high-energy &lt;c + a&gt; dislocations near high-density deformation twins and shear bands. This enhances the driving force for twinning and shear band-induced recrystallization in the subsequent annealing, thus substantially expanding randomly-oriented grains and weakening texture. During early annealing stage, initially segregated Zn atoms at twin boundaries migrate into the matrix mediated by residual dislocations, reducing solute drag and facilitating growth of randomly-oriented grains. Upon complete consumption of residual dislocations as recrystallization progresses, Zn atoms gradually re-segregate to grain boundaries of newly nucleated random grains, suppressing grain coarsening. These findings reveal a designed rolling regime enabling texture weakening of Mg sheets by activating profuse &lt;c + a&gt; dislocations and dynamic solute partitioning.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102075"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced processing and heat treatment of magnesium alloys: a quest for the critical breakthrough to large-scale applications 镁合金的先进加工和热处理:寻求大规模应用的关键突破
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-22 DOI: 10.1016/j.jma.2026.102123
Frank Czerwinski
{"title":"Advanced processing and heat treatment of magnesium alloys: a quest for the critical breakthrough to large-scale applications","authors":"Frank Czerwinski","doi":"10.1016/j.jma.2026.102123","DOIUrl":"10.1016/j.jma.2026.102123","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102123"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual-ion storage in bipolar covalent organic frameworks with spatially separated redox centers enables high performance magnesium batteries 双离子存储在具有空间分离氧化还原中心的双极性共价有机框架中实现高性能镁电池
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-06-24 DOI: 10.1016/j.jma.2026.102135
Zhimeng Tang, Guangxu Wu, Hongfei Shi, ChengFeng Jiang, Changke Chen, Guozhong He, Hongxing Jia, Baihua Qu, Jingfeng Wang, Xianquan Jiang
{"title":"Dual-ion storage in bipolar covalent organic frameworks with spatially separated redox centers enables high performance magnesium batteries","authors":"Zhimeng Tang,&nbsp;Guangxu Wu,&nbsp;Hongfei Shi,&nbsp;ChengFeng Jiang,&nbsp;Changke Chen,&nbsp;Guozhong He,&nbsp;Hongxing Jia,&nbsp;Baihua Qu,&nbsp;Jingfeng Wang,&nbsp;Xianquan Jiang","doi":"10.1016/j.jma.2026.102135","DOIUrl":"10.1016/j.jma.2026.102135","url":null,"abstract":"<div><div>Rechargeable magnesium batteries (RMBs) are regarded as highly promising candidates for post-lithium-ion energy storage systems, owing to the abundance of magnesium resources and their intrinsically dendrite-free. However, their development has been significantly impeded by the scarcity of high-voltage cathode materials and the challenge of designing electrolytes with wide electrochemical stability windows. Herein, we report the rapid synthesis of two bipolar n-p type three-component covalent organic frameworks—TPT-COF and TNT-COF—via a microwave-assisted solid-phase method. These COFs enable synergistic anion and cation storage through spatially separated redox centers. When coupled with a newly developed chlorine-free magnesium electrolyte, Mg[B(tfe)(hfip)<sub>3</sub>]<sub>2</sub>/DME, the constructed magnesium dual-ion batteries exhibit discharge voltage plateaus exceeding 3.0 V, substantially higher than those of most existing magnesium battery systems. Moreover, the system demonstrates remarkable rate capability (retaining 108 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup>) and cycling stability (79% capacity retention after 2000 cycles at 3 A g<sup>−1</sup>). This work demonstrates a coordinated electrode-electrolyte design strategy, offering an innovative pathway toward high-voltage, high-power multivalent metal battery systems.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102135"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148311866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated Manufacturing of Light Alloy Automotive Structures: From Forming Mechanisms to Intelligent Equipment 轻合金汽车结构集成制造:从成形机理到智能装备
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-28 DOI: 10.1016/j.jma.2026.102124
Peng Gong, Xin Cui, Yanbin Zhang, Liandi Xu, Bo Zhang, Rui Xue, Danyang Liu, Xuelei Song, Xu Yan, Changhe Li
{"title":"Integrated Manufacturing of Light Alloy Automotive Structures: From Forming Mechanisms to Intelligent Equipment","authors":"Peng Gong,&nbsp;Xin Cui,&nbsp;Yanbin Zhang,&nbsp;Liandi Xu,&nbsp;Bo Zhang,&nbsp;Rui Xue,&nbsp;Danyang Liu,&nbsp;Xuelei Song,&nbsp;Xu Yan,&nbsp;Changhe Li","doi":"10.1016/j.jma.2026.102124","DOIUrl":"10.1016/j.jma.2026.102124","url":null,"abstract":"<div><div>To achieve extreme weight reduction in new energy vehicles, the deep integration of intelligent equipment with lightweighting strategies has catalyzed a paradigm shift. Light alloys, particularly aluminum and magnesium, have become pivotal materials. Compared to traditional high pressure die casting, integrated giga-casting demonstrates significant advancements, pushing the flow length-to-thickness ratio beyond 500 and requiring clamping forces exceeding 16,000 tons. Nevertheless, the complex physical metallurgy of large-scale structures remains insufficiently understood, which limits the formulation of process specifications and widespread industrial application. Particularly in chaotic filling environments, the intrinsic trade-offs among melt fluidity, solidification shrinkage, and mechanical integrity are difficult to control. To address these challenges, a comprehensive assessment of microstructural evolution and strengthening mechanisms under rapid solidification conditions is provided. Firstly, this paper reveals advanced strengthening mechanisms by detailing the decisive role of casting densification and nonequilibrium solute trapping in activating grain refinement, solid solution strengthening, and unique deformation twinning. Secondly, the distinctive technological evolution towards intelligent casting routes is clarified, demonstrating how thermal management and semi-solid technologies suppress internal porosity below 1.7% and elevate the ultimate tensile strength to the 250-450 MPa range. Furthermore, process optimization strategies are summarized based on material-process-intelligence synergy, including <em>in situ</em> sensing, millisecond-level artificial intelligence defect prediction, and digital twin frameworks. Finally, future development directions are outlined. This review aims to facilitate a deeper understanding of the underlying mechanisms, assist in formulating process specifications, and ultimately achieve a weight reduction of 15 – 20% for automotive structures.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102124"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and performance of a multifunctional coating with magnesium-philic and hydrophobic properties on the surface of magnesium battery anodes 镁电池阳极表面亲镁疏水多功能涂层的设计与性能
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-17 DOI: 10.1016/j.jma.2026.102107
Wenzi Huang, Bowen Lin, Yanbinhui Zhang, Yueping Wei, Wei Shang, Jiqiong Jiang, Yuqing Wen
{"title":"Design and performance of a multifunctional coating with magnesium-philic and hydrophobic properties on the surface of magnesium battery anodes","authors":"Wenzi Huang,&nbsp;Bowen Lin,&nbsp;Yanbinhui Zhang,&nbsp;Yueping Wei,&nbsp;Wei Shang,&nbsp;Jiqiong Jiang,&nbsp;Yuqing Wen","doi":"10.1016/j.jma.2026.102107","DOIUrl":"10.1016/j.jma.2026.102107","url":null,"abstract":"<div><div>Magnesium metal batteries are promising for next-generation energy storage due to their high energy density and low cost. However, in aqueous electrolytes, the formation of a passivation layer on the magnesium surface—hindering ion conduction—remains a major challenge. This study proposes a two-step method to prepare a multifunctional Sn@MXene interface protective layer with strong magnesium affinity and high hydrophobicity. The Sn@MXene layer was applied to magnesium metal batteries to improve performance. Results show that its strong hydrophobicity (contact angle of 132°) prevents direct contact between the aqueous electrolyte and the magnesium anode, effectively reducing side reactions such as hydrogen evolution and corrosion. In the symmetrical cell configuration, the Sn@MXene coating effectively suppresses passivation on the magnesium surface and significantly reduces interfacial charge-transfer resistance, leading to improved cycling stability and longer discharge duration. In full cell tests, the coating greatly reduces voltage hysteresis and battery impedance while extending the discharge plateau. Long-term cycling tests further confirm its ability to enhance charge-discharge stability. DFT calculations show that Sn nanoparticles enable uniform magnesium ion deposition, while Ti₃C₂Cl₂ lowers the reaction kinetic barrier on the anode surface. This enhances both ion deposition/stripping and reaction kinetics, significantly improving the electrochemical performance of magnesium batteries.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102107"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Achieving Synergy in Laminated ZK60/MgEr Composite by Multiple Strengthening and Toughening Mechanisms 通过多种强化和增韧机制实现ZK60/MgEr层合复合材料的协同作用
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-06-23 DOI: 10.1016/j.jma.2026.102134
Xun Gao, Yan Tang, Peijun Yang, Boshu Liu, Rongguang Li, Gaowu Qin
{"title":"Achieving Synergy in Laminated ZK60/MgEr Composite by Multiple Strengthening and Toughening Mechanisms","authors":"Xun Gao,&nbsp;Yan Tang,&nbsp;Peijun Yang,&nbsp;Boshu Liu,&nbsp;Rongguang Li,&nbsp;Gaowu Qin","doi":"10.1016/j.jma.2026.102134","DOIUrl":"10.1016/j.jma.2026.102134","url":null,"abstract":"<div><div>A ZK60/MgEr magnesium alloy composite plate was fabricated via a roll bonding process, and its microstructure, mechanical properties, and strengthening mechanisms were systematically investigated. The results indicate that sound metallurgical bonding was achieved in the composite plate. During the rolling process, both slip and twinning occurred in all constituent layers. Prismatic &lt;a&gt; slip was the dominant slip mechanism in all layers. Regarding twinning, {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>2} extension twinning was prevalent in the internal ZK60 and MgEr layers, while {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>1}-{10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>2} double twinning was dominant in the surface ZK60 layer. These twins not only coordinated deformation with slip but also effectively weakened the basal texture of the composite plate, thereby promoting the activation of non-basal slip at room temperature. Multiple strengthening mechanisms contributed to the overall strength of the composite plate to varying degrees, with dislocation strengthening and hetero-deformation-induced (HDI) strengthening being the most significant. Calculations show that HDI strengthening contributed approximately 56.3 MPa. Under the combined effect of these multiple strengthening mechanisms, the composite plate achieved a yield strength of 193.4 MPa, an ultimate tensile strength of 311.4 MPa, and an elongation of 13.6%, representing an excellent strength-ductility balance. Compared to monolithic ZK60 processed under identical conditions, the elongation of the composite plate increased by 38.8%. Compared to monolithic MgEr, the yield strength of the composite plate improved by 28.9%. The composite plate successfully integrated the high strength of ZK60 with the superior ductility of MgEr, achieving an optimal balance between strength and ductility. This study provides a valuable reference for research on heterostructured magnesium alloys and for the strengthening and toughening of magnesium alloys.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102134"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148312882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ni9S8/Fe5Ni4S8-mediated reversible catalysis: Enhancing the hydrogen storage performance of MgH2 under mild conditions Ni9S8/ fe5ni4s8介导的可逆催化:在温和条件下提高MgH2的储氢性能
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-19 DOI: 10.1016/j.jma.2026.102132
Lingying Chen, Mengran Li, Yahui Jiao, Jiguang Zhang, Rui Shi, Yana Liu, Jun Wang, Yunfeng Zhu
{"title":"Ni9S8/Fe5Ni4S8-mediated reversible catalysis: Enhancing the hydrogen storage performance of MgH2 under mild conditions","authors":"Lingying Chen,&nbsp;Mengran Li,&nbsp;Yahui Jiao,&nbsp;Jiguang Zhang,&nbsp;Rui Shi,&nbsp;Yana Liu,&nbsp;Jun Wang,&nbsp;Yunfeng Zhu","doi":"10.1016/j.jma.2026.102132","DOIUrl":"10.1016/j.jma.2026.102132","url":null,"abstract":"<div><div>MgH<sub>2</sub> is favored for its high hydrogen storage density (7.6 wt.%), however, its practical application is hindered by stable thermodynamics and sluggish kinetics. Although the introduction of highly active catalysts effectively improves the kinetic performance of MgH<sub>2</sub>, the catalytic mechanism of complex multiphase catalysts remains poorly understood, posing formidable challenges to the rational design of truly reversible catalysts. In this study, a highly-effective reversible catalyst Ni<sub>9</sub>S<sub>8</sub>/Fe<sub>5</sub>Ni<sub>4</sub>S<sub>8</sub> was constructed to extremely enhance both the hydrogen desorption and regeneration capability of MgH<sub>2</sub>. Remarkably, at a mild temperature of 225 °C, MgH<sub>2<img></sub>Ni<sub>9</sub>S<sub>8</sub>/Fe<sub>5</sub>Ni<sub>4</sub>S<sub>8</sub> rapidly desorbs 4.13 wt.% H<sub>2</sub> in 3000 s. The composite also efficiently absorbs hydrogen at near-ambient temperatures, absorbing 4.0 wt.% H<sub>2</sub> in 7200 s at 45 °C. In contrast, ball‑milled MgH<sub>2</sub> alone hardly releases any hydrogen at 225 °C and shows almost no hydrogen uptake at 45 °C. Detailed studies revealed that the improved hydrogen ab/desorption behavior of Mg/MgH<sub>2</sub> is attributed to the in-situ generation of catalytically active sites (Fe/Mg<sub>2</sub>Ni heterostructures and “hydrogen pump” of Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub>) during hydrogen cycling. Density functional theory (DFT) calculations revealed that significant electron transfer at the Fe/Mg<sub>2</sub>Ni heterostructure reduces hydrogen absorption capacity, thereby promoting hydrogen ab/desorption processes in Mg/MgH<sub>2</sub>. Concurrently, the Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub> “hydrogen pump” facilitates H transfer. These findings yield deeper insights into the reversibly catalytic function of multiphase catalysts for enhancing metal hydride hydrogen storage.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102132"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uncovering the effect of basal texture tilting angle on the room-temperature stretch formability of magnesium alloy sheets and its underlying mechanisms 揭示基底织构倾角对镁合金板材室温拉伸成形性能的影响及其机理
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-15 DOI: 10.1016/j.jma.2026.102096
Kun Yang, Junjie He, Hongfu Chen, Weiqi Wang, Yang Chen, Canmei Tian, Min Li, Guihui Shu, Guangjie Xue, Dabiao Xia, Tao Wu, Yong Mao
{"title":"Uncovering the effect of basal texture tilting angle on the room-temperature stretch formability of magnesium alloy sheets and its underlying mechanisms","authors":"Kun Yang,&nbsp;Junjie He,&nbsp;Hongfu Chen,&nbsp;Weiqi Wang,&nbsp;Yang Chen,&nbsp;Canmei Tian,&nbsp;Min Li,&nbsp;Guihui Shu,&nbsp;Guangjie Xue,&nbsp;Dabiao Xia,&nbsp;Tao Wu,&nbsp;Yong Mao","doi":"10.1016/j.jma.2026.102096","DOIUrl":"10.1016/j.jma.2026.102096","url":null,"abstract":"<div><div>Tilting basal texture is recognized as a potentially effective strategy for optimizing the room–temperature (RT) formability of magnesium alloy sheets. However, the unclear quantitative relationship between the RT formability and basal texture tilting degree of magnesium alloy sheet as well as the unrevealed intrinsic mechanisms linking them renders this strategy immature yet. This work comprehensively investigates the influence of basal texture tilting angle (BTTA) on the RT stretch formability of AZ31 magnesium alloy sheets, as well as the plastic deformation mechanism operation and strain accommodation capability during forming process. The results show that the formability of every texture-effectively tilted sheet with a BTTA &gt; 0° is significantly improved as compared to that of initial sheet orientating the c-axis of most grains toward the normal direction. Moreover, the formability optimization effect exhibits a trend of initial increase followed by decrease with increasing BTTA, which is primarily attributed to the differential response behaviors of plastic deformation mechanism operation and strain accommodation to BTTA in the upper regions among these sheets. Given that BTTA is &gt; 0° but &lt; 60°, basal &lt;a&gt; slip dominates the plastic deformation. The positive correlation between formability gain and BTTA benefits greatly from the continuously enhanced initial basal slip ability and the reduced orientation hardening rate. When BTTA is ≥ 60° but &lt; 90°, the strong synergistic effect combining {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>2} tensile twinning with basal &lt;a&gt; slip, along with the orientation softening for basal slip, promotes the formability improvement. Once BTTA approaches 90°, the profuse formation of {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>2} tension twin is a main contribution to the formability increment. Additionally, the evolution pattern of thickness-direction strain accommodation capability (<em>r<sub>avg.</sub></em> value) with increasing BTTA is completely consistent with the I.E. value. Specially, due to the strong initial basal slip ability, numerous tension twins with soft orientation for basal slip formed during the early forming stage, the continuous orientation softening for basal slip in matrix and the highest thickness-direction strain accommodation capability, the sheet with a BTTA of 60° shows the optimal RT formability manifested as an I.E. value of 7.6 mm which represents a ∼217% enhancement compared to the initial sheet with a BTTA of 0°. This work deepens the understanding of tilting basal texture for optimizing formability and provides theoretical foundations for the reverse design and development of magnesium alloy sheets with high RT formability.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102096"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148745427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insight into corrosion and corrosion fatigue behavior of Mg alloy via preferential adsorption of inhibitor 缓蚀剂优先吸附对镁合金腐蚀和腐蚀疲劳行为的影响
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2026-07-01 Epub Date: 2026-05-14 DOI: 10.1016/j.jma.2026.102097
Lingxiong Sun, Lixiang Yang, Qiang Wang, Xiaopeng Lu, Dongmei Zeng, You Zhang, Alexander G. Rakoch, Evgeniya P. Monakhova, Lei Xue, Fuhui Wang
{"title":"Insight into corrosion and corrosion fatigue behavior of Mg alloy via preferential adsorption of inhibitor","authors":"Lingxiong Sun,&nbsp;Lixiang Yang,&nbsp;Qiang Wang,&nbsp;Xiaopeng Lu,&nbsp;Dongmei Zeng,&nbsp;You Zhang,&nbsp;Alexander G. Rakoch,&nbsp;Evgeniya P. Monakhova,&nbsp;Lei Xue,&nbsp;Fuhui Wang","doi":"10.1016/j.jma.2026.102097","DOIUrl":"10.1016/j.jma.2026.102097","url":null,"abstract":"<div><div>The combined effect of cyclic loading and corrosive environment accelerates corrosion fatigue and therefore shortens service life of Mg alloy when used in automotive and aerospace applications. Enhancement the corrosion and corrosion fatigue performance are of the utmost importance to ensure the service reliability of Mg alloys. In the present study, the influence of inhibitor (barbituric acid) on corrosion and corrosion fatigue performance of Mg-Al-Ca alloy has been thoroughly investigated for the first time. It was found that inhibitor is preferentially adsorbed on basal plane compared to non-basal planes of Mg substrate, leading to a high inhibition efficiency of 90% after 7 days immersion in NaCl solution. Molecular dynamics simulations and density functional theory calculations further corroborated that the basal plane exhibits lowest adsorption energy and most pronounced charge density, suggesting that adsorption of inhibitor is crystal-plane-dependent on the Mg surface. The results demonstrated that the corrosion fatigue strength at a defined life (1 × 10<sup>6</sup> cycles) of Mg alloy in a pre-damaged condition has been increased by 100% in the presence of inhibitor. The superior performance originates from suppression of pitting corrosion on various crystal planes, which consequently delays the initiation of corrosion fatigue cracks.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"20 ","pages":"Article 102097"},"PeriodicalIF":15.8,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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