Dongsheng Han, Zilin Li, Zhangzhi Shi, Laszlo S Toth, Werner Skrotzki, Benoit Beausir, Zhonghua Du, Sen Yang, Fengjian Shi, Amélie Fillon, Helene Birembaux, Mohammed El Ganaoui, Cai Chen, Luning Wang
{"title":"Achieving strength-ductility-biodegradation synergy in a low-alloyed Mg-Sn-Li-Ca alloy via multi-polarization of texture and second phases","authors":"Dongsheng Han, Zilin Li, Zhangzhi Shi, Laszlo S Toth, Werner Skrotzki, Benoit Beausir, Zhonghua Du, Sen Yang, Fengjian Shi, Amélie Fillon, Helene Birembaux, Mohammed El Ganaoui, Cai Chen, Luning Wang","doi":"10.1016/j.jma.2026.102000","DOIUrl":"10.1016/j.jma.2026.102000","url":null,"abstract":"<div><div>Wrought Mg-Sn alloys are promising for biomedical applications due to their excellent biocompatibility, biodegradability, low density, and high specific strength. However, the poor corrosion resistance and mechanical performance of conventional wrought Mg-Sn alloys limit their clinical applications in load-bearing components. To address these challenges, an extrusion-shearing (ES) process was applied to a novel low-alloyed Mg-Sn-Li-Ca alloy, tailoring its microstructure and texture for comparison with conventional extrusion (EX). The ES process resulted in a significantly refined and homogeneous microstructure, reducing the average grain size to 4.9 µm, less than half of the EX sample (11.1 µm). Instead of a typical single-pole texture component with <10−0>//extrusion direction (ED) in EX sample, the ES sample showed a multipolar texture consisting of three fiber texture components: C1 (115°, 90°, 0∼60°), C2 (175°, 90°, 0∼60°), and P (150°, 0∼90°, 30°). The ES sample achieved a tensile yield strength of 231.8 MPa and elongation of 14.3%, representing improvements of 10.4% and 24.3% over the EX sample, respectively. Microstructural evolution combined with visco-plastic self-consistent modeling revealed that the C1 component promotes {10–12} twinning in the ES samples. The enhanced strength and ductility of the ES samples stemmed from multi-polarization of texture, second-phase distribution, and more homogeneous grain refinement. Moreover, corrosion behavior in α-minimum essential medium was investigated through immersion and electrochemical tests. Although both EX and ES samples exhibited similar high biocompatibility, the biodegradation rate of the ES samples was only 68.2% of the EX sample under immersion. In the ES sample, the multidirectional second-phase streamlines (i.e., multi-polarization of the second phase) inhibited pitting corrosion; the more corrosion-resistant {1–217} planes are nearer to the sample surface in grains with C1 texture component, replacing the {10–10} planes in the EX samples. These findings provide a viable strategy for advanced biodegradable implants via crystallographic engineering.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102000"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147319926","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}
Amir Ali Khaleghi, Masoud Rasouli, Mohammad Amin Salevati, Mahdi Sabbaghian, Klaudia Fekete-Horváth, Daria Drozdenko, Kristian Máthis, Javad Mola, Erhard Schafler, Farshad Akbaripanah
{"title":"Analysis of microstructural evolution and mechanical properties of AZ80/TiO2 nanocomposite processed by high-pressure torsion","authors":"Amir Ali Khaleghi, Masoud Rasouli, Mohammad Amin Salevati, Mahdi Sabbaghian, Klaudia Fekete-Horváth, Daria Drozdenko, Kristian Máthis, Javad Mola, Erhard Schafler, Farshad Akbaripanah","doi":"10.1016/j.jma.2026.102173","DOIUrl":"10.1016/j.jma.2026.102173","url":null,"abstract":"<div><div>The impact of 0.5 and 3 turns high-pressure torsion (HPT) as a severe plastic deformation technique on the microstructural evolution, crystalline texture, shear behavior, and microhardness distribution of an as-cast AZ80/1.5 vol.%TiO<sub>2</sub> magnesium nanocomposite was investigated. The initial as-cast sample exhibited a microstructure characterized by large grains and an inhomogeneous structure, with an average grain size of 90 µm. However, after 3 turns HPT, a fine and homogeneous grain structure with an average size of 1.4 µm was obtained. By applying 0.5 and 3 turns HPT, the random texture of the as-cast sample was transformed to a semi-shear component. The mechanical properties were locally assessed using the shear punch test (SPT). The as-cast AZ80/TiO<sub>2</sub> nanocomposite exhibited shear yield stress and ultimate shear strength of 121 and 130 MPa, respectively. After applying 3 turns of HPT, these values increased to 152 and 178 MPa, respectively. The strength enhancement was attributed to the finer grain size and basal texture on the analyzed surface. Meanwhile, the hardness increased by 60% as a result of the HPT process, which is consistent with the decrease in grain size and improved shear strength. By increasing the HPT turn from 0.5 to 3, the uniformity of the hardness distribution over the whole part of the tested disks was improved as a result of more homogeneous miscrostructure.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102173"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148755163","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}
{"title":"Performance optimization of magnesium alloys for biomedical applications: Bulk strategies","authors":"Robert Král","doi":"10.1016/j.jma.2026.102154","DOIUrl":"10.1016/j.jma.2026.102154","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102154"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949755","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}
{"title":"Time-dependent role of Mg in regulating the degradation behaviour of LPBF-fabricated Zn3Mg alloy","authors":"Yubao Zhang, Liang Zhang, Kun Sun, Zongqiang Gao","doi":"10.1016/j.jma.2026.102178","DOIUrl":"10.1016/j.jma.2026.102178","url":null,"abstract":"<div><div>Although Zn3Mg has been widely reported as a promising biodegradable Zn-based alloy with favourable mechanical performance, its role in regulating degradation behaviour, particularly under the unique microstructural conditions introduced by laser powder bed fusion (LPBF), remains highly controversial. In this study, the long-term in vitro degradation behaviour of laser powder bed fusion (LPBF) fabricated Zn3Mg alloy was systematically investigated in simulated body fluid over a period of up to 28 days and compared with that of pure Zn. The results reveal a pronounced time-dependent dual role of Mg during degradation. In the early (0–3 days) and intermediate–late (14–21 days) stages, the release of Mg²⁺ contributes to interfacial buffering and stabilises protective corrosion products, whereas in the intermediate stage (3–14 days), densification of the degradation layer inhibits Mg²⁺ transport, thereby diminishing its regulatory effect. In the final stage (21–28 days), local pH elevation and Cl⁻ enrichment weaken the protective effect of Mg, leading to a stabilised degradation rate of approximately 0.09 mm·year⁻¹. This study elucidates the dynamic competition between micro-galvanic corrosion and Mg²⁺-mediated interfacial regulation in LPBF-fabricated Zn3Mg alloy, providing mechanistic insights for the composition and microstructure design of biodegradable Zn-based implants.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102178"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949608","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}
{"title":"Thermodynamics-governed integration of AI and ICME for materials design: Free-energy landscape and hierarchical entropy","authors":"Zi-Kui Liu","doi":"10.1016/j.jma.2026.102162","DOIUrl":"10.1016/j.jma.2026.102162","url":null,"abstract":"<div><div>Artificial intelligence (AI) and Integrated Computational Materials Engineering (ICME) are transforming materials design, yet their integration lacks a unifying physical foundation. Here, we propose a thermodynamics-governed framework centered on the free-energy landscape and the hierarchical (recursive) structure of entropy. By decomposing entropy into configurational and intrinsic contributions, materials behavior can be described consistently across all-scales within a single ensemble under given external constraints. Within this framework, ICME constructs physically grounded free-energy landscapes, while AI enables efficient learning and exploration of these landscapes. Applications to magnesium alloys illustrate how diverse phenomena emerge from a common thermodynamic foundation. This perspective shifts materials design from property-centered modeling to energy-centered, hierarchy-aware representations, providing a principled pathway for integrating AI and ICME.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102162"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148287029","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}
F.W. Pi, L.H. He, X.J. Zhao, Y.J. Deng, P.P. Shi, Y. Cai, C.J. Yan, S.N. Luo
{"title":"Mechanical properties and deformation mechanisms of a dual-phase Mg-Sc alloy: Effects of strain rate and temperature","authors":"F.W. Pi, L.H. He, X.J. Zhao, Y.J. Deng, P.P. Shi, Y. Cai, C.J. Yan, S.N. Luo","doi":"10.1016/j.jma.2026.102187","DOIUrl":"10.1016/j.jma.2026.102187","url":null,"abstract":"<div><div>The compressive mechanical behavior and deformation mechanisms of a dual-phase Mg-Sc alloy consisting of hexagonal close-packed (HCP) and body-centered cubic (BCC) phases are systematically investigated over a wide temperature range (133–473 K) at two representative strain rates (0.001 and 3000 s<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span>). The mechanical response strongly depends on both deformation temperature and strain rate. An excellent strength-ductility synergy is achieved at 133 K and 3000 s<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span>, with a yield strength of 364 MPa and a fracture strain of 32%. Microstructural analyses reveal that twinning in the HCP phase is significantly suppressed at 298 K and 0.001 s<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span> due to the relatively high Sc content. Decreasing temperature and increasing strain rate both promote twinning activity, with strain rate playing a more pronounced role. At 133 K and 3000 s<span><math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math></span>, <span><math><mrow><mo>{</mo><mn>11</mn><mover><mn>2</mn><mo>¯</mo></mover><mn>1</mn><mo>}</mo></mrow></math></span> and <span><math><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></math></span> twins dominate, accompanied by <span><math><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>1</mn><mo>}</mo></mrow></math></span> twin and secondary twins such as <span><math><mrow><mrow><mo>{</mo><mn>11</mn><mover><mn>2</mn><mo>¯</mo></mover><mn>1</mn><mo>}</mo></mrow><mo>−</mo><mrow><mo>{</mo><mn>11</mn><mover><mn>2</mn><mo>¯</mo></mover><mn>1</mn><mo>}</mo></mrow></mrow></math></span> and <span><math><mrow><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>1</mn><mo>}</mo></mrow><mo>−</mo><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></mrow></math></span>. Plastic deformation in the BCC phase is mainly governed by dislocation slip, and only a small amount of deformation-induced HCP martensite is observed. These results provide novel insight into the temperature- and strain-rate-dependent deformation mechanisms in dual-phase Mg-Sc alloys.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102187"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148385156","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}
Yulei Deng, Changjiang Zhang, Wenjie Liu, Bowen Yan, Wenzhen Chen, Jianchao Han, Bin Wang, Tao Wang
{"title":"Achieving strength-ductility synergy in rare earth Mg alloy via IMDF-induced texture weakening and LPSO phase tuning","authors":"Yulei Deng, Changjiang Zhang, Wenjie Liu, Bowen Yan, Wenzhen Chen, Jianchao Han, Bin Wang, Tao Wang","doi":"10.1016/j.jma.2026.102128","DOIUrl":"10.1016/j.jma.2026.102128","url":null,"abstract":"<div><div>Magnesium alloys face the inherent challenge of the strength-ductility trade-off due to their limited room-temperature ductility and pronounced processing texture. To address this issue, this study employs isothermal multidirectional forging to synergistically regulate the basal texture and long-period stacking ordered phase in a Mg-7Y-2.5Zn-0.5Zr-0.1V alloy by introducing a dynamic multi-axial strain field. The microstructures, deformation mechanisms and room-temperature mechanical properties of the alloys processed by IMDF at different temperatures (370 °C, 420 °C and 470 °C) were systematically investigated. Results demonstrate that IMDF can significantly weaken the basal texture, optimize the morphology and distribution of the LPSO phase, and refine the grains simultaneously. The IMDF–420 alloy achieves an optimal balance of strength and ductility, with superior room-temperature tensile properties (YS: 335.6 MPa, EL: 27.2%). Its strengthening mechanisms include Hall-Petch strengthening from grain refinement, accumulation of GNDs and back-stress hardening induced by misorientation of grains, as well as the synergistic strengthening and toughening effects of multi-scale second phases (LPSO phase and short-range ordered (SRO) structure). In contrast, the excellent ductility originates from the combined activation of multi-slip systems induced by weak texture, grain refinement and dispersed LPSO phases. Specifically, the extensive activation of pyramidal ⟨c+a⟩ slip lays the foundation for macroscopic high ductility, while the twinning-slip transition, kinking and breaking of the LPSO phase, and intergranular slip transfer collectively form an efficient strain release system, which avoids severe strain localization and premature damage. This work provides important theoretical basis and process guidance for the design of high-performance magnesium alloys via multi-directional deformation processes.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102128"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949598","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}
Jingzhe Wang, Zhi Wang, Zhihang He, Le Zhou, Feng Wang, Ziqi Wei, Pingli Mao
{"title":"Quasi-in-situ EBSD analysis of twinning and detwinning in ZCW610 alloy","authors":"Jingzhe Wang, Zhi Wang, Zhihang He, Le Zhou, Feng Wang, Ziqi Wei, Pingli Mao","doi":"10.1016/j.jma.2026.102150","DOIUrl":"10.1016/j.jma.2026.102150","url":null,"abstract":"<div><div>The twinning and detwinning behavior of ZCW610 alloy during two-step intermittent dynamic compression along extrusion direction (ED) and extrusion radial direction (ERD) was studied by quasi-in-situ electron backscatter diffraction (EBSD). Experiments show that 160 twins with a volume fraction of 16.96% form at 4% strain along ED for the first step. When compressed to 4% strain along ERD next, 60 new twins are generated, while 41 twins undergo detwinning with the final volume fraction reaching 19.07%. When the strain increases, the number of newly generated twins is always more than that of detwinning, and the Schmid factor (SF) of most activated twinning and detwinning variants rank first or second, indicating that twinning is easier to accommodate deformation than detwinning. Two low SF tensile twin variants are found: those formed at grain boundaries and twin pairs with intersecting boundaries. Twin variant selection depends on both Schmid's law and strain compatibility factor (m'), where low SF variants nucleate via stress concentration in adjacent grains due to high m'. Detwinning across low angle grain boundaries releases tip stress, proving shear stress from internal stress can activate low SF twins. Low SF twins generated by compression along ED can reorient parent grains and activate slip. ED-compressed low SF twins reorient parent grains and activate slip, while ERD stress reverses their resolved shear stress, driving detwinning migration. This study elucidates the key influencing factors and mechanisms of twinning and detwinning under biaxial dynamic compression, providing theoretical support for material deformation research.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102150"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949688","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}
Jiamin Li, Changjian Yan, Yang Cao, Juan Hou, Lingyu Zhao, Chuanqiang Li, En-Hou Han
{"title":"A review of wire-arc additive manufacturing magnesium alloys: parameters, microstructure, properties and strengthening strategies","authors":"Jiamin Li, Changjian Yan, Yang Cao, Juan Hou, Lingyu Zhao, Chuanqiang Li, En-Hou Han","doi":"10.1016/j.jma.2026.102158","DOIUrl":"10.1016/j.jma.2026.102158","url":null,"abstract":"<div><div>With lightweighting emerging as a critical technological trajectory in aerospace and next-generation transport, the fabrication of large, complex magnesium alloy components is increasingly urgent. Due to its high deposition rate and scalability, wire-arc additive manufacturing (WAAM) offers a promising paradigm for the near-net-shape forming of these materials. This paper systematically reviews the current research status of WAAM magnesium alloys. First, it analyzes the unique challenges faced by the application of the WAAM process to magnesium alloys; then, it summarizes the intrinsic relationship between process, microstructure, and properties from the aspects of process parameter control, microstructure evolution, mechanical properties, and corrosion behavior. Furthermore, we synthesize emerging in situ hybrid manufacturing strategies-utilizing external field assistance and inter-layer mechanical treatments-that achieve integrated control over both component geometry and material properties. Finally, we delineate critical frontiers for future investigation, including tailored alloy design, intelligent process control, and rigorous performance evaluation, to accelerate the deployment of high-performance magnesium WAAM technologies.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102158"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949757","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}
{"title":"From Doping to Composite Incorporation: Pathway-Dependent Carrier and Phonon Transport in Mg3(Sb, Bi)2","authors":"Lifeng Jiang, Peng Xie, Shuyue Tan, Peipei Liu, Huijun Kang, Zongning Chen, Enyu Guo, Tongmin Wang","doi":"10.1016/j.jma.2026.102131","DOIUrl":"10.1016/j.jma.2026.102131","url":null,"abstract":"<div><div>Chemical composition is often considered a key factor in governing thermoelectric performance. However, samples with the same composition can exhibit various transport behaviors depending on the form of dopant incorporation. Here, we compare the thermoelectric performance of Mg<sub>3</sub>(Sb, Bi)<sub>2</sub> samples with the same nominal Cu<sub>2</sub>Se content, introduced either by elemental addition or compound addition. Elemental addition mainly induces multicomponent-like doping, while compound addition exhibits a slightly doping effect. Both strategies result in the formation of Cu-rich grain-boundary phases that facilitate electron transport. However, elemental addition leads to excessive carrier concentration and grain refinement, ultimately degrading the power factor. In contrast, compound addition significantly enhances electrical conductivity through Cu-rich grain-boundary phases while avoiding over-doping. Additionally, abundant Se-rich precipitates with core-shell structures are also formed in the Cu<sub>2</sub>Se-added sample, effectively suppressing lattice thermal conductivity. Consequently, the Cu<sub>2</sub>Se-added sample exhibits superior <em>zT</em> across the entire temperature range, reaching a peak <em>zT</em> of 1.71 at 723 K and an exceptional average <em>zT</em> of 1.21 over 323-723K. This work demonstrates that the form of additive incorporation, not just chemical composition, plays a decisive role in microstructural evolution and thermoelectric performance, offering a new dimension for the compositional design of advanced thermoelectric materials.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"21 ","pages":"Article 102131"},"PeriodicalIF":15.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148949759","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}