Journal of Magnesium and Alloys最新文献

{"title":"Strengthening/weakening effect of graphene orientation angle on mechanical properties of AZ91 magnesium matrix composites","authors":"Dunwei Peng, Zhuo Song, Yunpeng Zhang, Xiaopan Wang, Hua Hou, Yuhong Zhao","doi":"10.1016/j.jma.2024.12.001","DOIUrl":"https://doi.org/10.1016/j.jma.2024.12.001","url":null,"abstract":"Graphene, as the reinforcing phase of magnesium matrix composites, can effectively improve the material strength, elastic modulus, and other properties. However, the random distribution of graphene in the matrix (i.e., random orientation angle) leads to different reinforcement effects on the matrix. To gain a deeper understanding of the impact of monolayer graphene (1LG) with varying orientation angles on the properties of Mg-9Al-1Zn (AZ91 (wt.%)) magnesium alloy, molecular dynamics (MD) simulations are employed to analyze the mechanical properties of AZ91/1LG composites under uniaxial tension. The simulation results show that Young's modulus and tensile strength of AZ91/1LG composites decrease gradually with the increase of the orientation angle of the 1LG. The Young's modulus and tensile strength of AZ91/1LG composites can be improved by the 1LG orientation angle of 0°∼10° , where the two are enhanced by 21.7% and 19.7% respectively, at an orientation angle of 0°. However, the Young's modulus and tensile strength of 1LG are decreased for orientation angles of 20°∼90°. Atomic structure evolution analysis revealed that the deformation mechanism of AZ91/1LG nanocomposites mainly depended on the load transfer ability of 1LG with different orientation angles, the bonding ability with AZ91 magnesium alloy matrix and the change of dislocation density. By fitting the formula to the tensile strength of AZ91/1LG composites with different orientation angles of 1LG, it is found that the simulated data of the AZ91/1LG composites containing a 1LG has a maximum relative error of about 10% concerning the fitted empirical formula to calculate the data. The maximum relative error for AZ91/1LG composites containing multiplate 1LG with different orientation angles is 7%. In addition, the interaction between graphene and dislocations in AZ91 magnesium matrix was further explained by transmission electron microscopy (TEM) and phase-field-crystal (PFC) simulation. It can provide some technical guidance for the experimental process design of AZ91/1LG composites.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"6 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142917943","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":"Enhanced manufacturing quality and mechanical performance of laser powder bed fused TiC/AZ91D magnesium matrix composites","authors":"Lixia Xi, Songmao Tian, Jiongyu Jia, Zhi Zhong, Dong Zhang, Zhiming Li, Jiaxing Hou, Keyu Shi, Dongdong Gu","doi":"10.1016/j.jma.2024.12.012","DOIUrl":"https://doi.org/10.1016/j.jma.2024.12.012","url":null,"abstract":"The addition of ceramic reinforcements provides a promising approach to achieving high-performance magnesium matrix composites. In this work, AZ91D magnesium alloys and 2 wt.% TiC/AZ91D composites have been manufactured by laser powder bed fusion (LPBF) with variations of laser processing parameters. The effect of TiC reinforcement addition on the laser absorption behaviors, forming quality, microstructure evolution and mechanical properties of the magnesium alloys is investigated. The TiC addition improves the interactions of laser with alloy powder and laser absorption rate of alloy powder, and decreases powder spatter of powder bed. The results show that high relative density of ∼99.4 % and good surface roughness of ∼12 µm are obtained for the LPBF-fabricated composites. The TiC addition promotes the precipitation of β-Mg₁₇Al₁₂ in the alloys and the transformation of coarse columnar to fine equiaxed grains, where the grains are refined to ∼3.1 µm. The TiC/AZ91D composites exhibit high microhardness of 114.6 ± 2.5 HV_0.2, high tensile strength of ∼345.0 MPa and a uniform elongation ∼4.1 %. The improvement of tensile strength for the composites is ascribed to the combination of grain refinement strengthening and Orowan strengthening from β-Mg₁₇Al₁₂ precipitates and Al₈Mn₅ nanoparticles. In the composites, the unmelted TiC particles can act as an anchor for the network structure of β-Mg₁₇Al₁₂ precipitates, effectively impeding crack propagation and enhancing their performance. This work offers an insight to fabricating high-performance magnesium matrix composites by laser additive manufacturing.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"97 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924618","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":"Smart gradient coating suitable for bone growth prepared on plasma-electrolytically oxidised Mg and its sequential degradation behaviour","authors":"Jiaping Han ,&nbsp;Kai Fu ,&nbsp;Zhiqiang Jiang ,&nbsp;Hao Zhang ,&nbsp;Hongshan San ,&nbsp;Hui Chen ,&nbsp;Xiaopeng Lu ,&nbsp;Carsten Blawert ,&nbsp;Mikhail.L. Zheludkevich","doi":"10.1016/j.jma.2024.05.026","DOIUrl":"10.1016/j.jma.2024.05.026","url":null,"abstract":"<div><div>A gradient coating containing collagen and inorganic strontium/calcium phosphate (Sr/CaP) was fabricated on plasma-electrolytically oxidised magnesium via one-step cathodic electrodeposition. First, Sr-doped dicalcium phosphate dihydrate and hydroxyapatite (DCPD and HA) was deposited, followed by a collagen/CaP layer. The morphological evolution, sequential degradation behaviour, and <em>in vitro</em> bio-properties of the coatings were investigated. The incorporation of collagen remarkably refined the morphology of the CaP, and a more aggregated nano-spherical morphology was observed with increasing collagen concentration. Sr could partially replace Ca in the CaP crystals. Collagen combined with CaP formed a relatively stable skeletal frame, which provided sufficient barrier properties and more sites for the re-precipitation of bone tissue, as well as a more promising proliferation and differentiation ability of osteoblasts. A gradient coating that matches the requirements of bone growth at various periods is suggested for implantation.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 356-378"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142014082","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":"Mechanistic switch in corrosion behavior of magnesium alloy diamond lattice structures induced by argon plasma treatment","authors":"Viviana M. Posada ,&nbsp;Alexandru Marin ,&nbsp;Tonny Naranjo ,&nbsp;Juan Ramírez ,&nbsp;Patricia Fernández-Morales","doi":"10.1016/j.jma.2024.12.021","DOIUrl":"10.1016/j.jma.2024.12.021","url":null,"abstract":"<div><div>Advancing 3D magnesium (Mg) development beyond current limitations requires controlling Mg alloy degradation in pre-designed, low-dimension architectures. This study reveals a mechanistic switch in the corrosion behavior of Mg alloy (3.6% Al, 0.8% Zn) diamond lattice structures, induced by plasma nanosynthesis (400 eV Ar⁺ ions, fluence 1 × 10¹⁷ ions/cm²). Plasma treatment of the Mg alloy increases surface Mg from 1.5% to 14.5%, enhances carbonate formation, and generates a nanostructured surface with a Mg carbonate layer over an oxide/hydroxide layer. In vitro and in vivo analyses over 8 wk demonstrate how this treatment fundamentally alters the degradation process and stability of these 3D architectures.</div><div>While untreated samples initially formed a protective film that subsequently diminished, DPNS-treated samples demonstrated an inverse corrosion behavior. X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS) confirmed the presence of a stable, protective layer composed of magnesium oxide, magnesium hydroxide, and magnesium carbonate on the DPNS-treated surfaces. After 14 days, the DPNS-treated sample exhibited a more positive corrosion potential (-0.69 V versus -1.36 V) and a marginally lower current density (0.73 mA/cm² compared to 0.75 mA/cm²) relative to the control. This protective layer, combined with modified surface topology, initiated a core-to-periphery degradation pattern that maintained structural integrity for up to 8 wk post-implantation. These findings support the conclusion that the DPNS-treated scaffold demonstrates sustained improved corrosion resistance over time compared to the untreated control.</div><div>Micro-CT revealed plasma-treated samples retained larger struts (504.9 ± 95.3 µm at 8 wk) and formed larger H₂ pockets extending 14.2 mm from the implant center, versus 4.9 mm in controls. This corrosion behavior switch enhances stability but risks pore clogging, offering insights for tailoring Mg alloy degradation and H₂ evolution in 3D architectures for biomedical applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 101-119"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974811","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":"Segregation behaviors in {101¯1} compressive twin boundaries of Mg-RE alloy under deformation at room temperature","authors":"Yujie Cui ,&nbsp;Lili Guo ,&nbsp;Yunwei Gui ,&nbsp;Kenta Aoyagi ,&nbsp;Haotian Tong ,&nbsp;Qinqin Wei ,&nbsp;Fangzhou Liu ,&nbsp;Yuichiro Hayasaka ,&nbsp;Akihiko Chiba","doi":"10.1016/j.jma.2024.05.023","DOIUrl":"10.1016/j.jma.2024.05.023","url":null,"abstract":"<div><div>Solute atoms and precipitates significantly influence the mechanical properties of Mg alloys. Previous studies have mainly focused on the segregation behaviors of Mg alloys after annealing. In this study, we investigated the segregation behaviors of an Mg-RE alloy under deformation. We found that the enrichment of solute atoms occurred in {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>1} compressive twin boundaries under compression at 298 K without any annealing in an Mg-RE alloy by scanning transmission electron microscopy and energy-dispersive X-ray analysis. The segregated solutes and precipitates impeded the twin growth, partially contributing to the formation of small-sized {10<span><math><mover><mn>1</mn><mo>¯</mo></mover></math></span>1} compressive twins. This research indicates the twin boundaries can be strengthened by segregated solutes and precipitates formed under deformation at room temperature.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 330-337"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141413157","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":"Development of a novel strategy for the quantification of ultra-trace impurity elements in high-purity magnesium using inductively coupled plasma tandem mass spectrometry","authors":"Liang Fu ,&nbsp;Guangsheng Huang ,&nbsp;Yaobo Hu ,&nbsp;Xianhua Chen ,&nbsp;Jingfeng Wang ,&nbsp;Fusheng Pan","doi":"10.1016/j.jma.2023.07.007","DOIUrl":"10.1016/j.jma.2023.07.007","url":null,"abstract":"<div><div>High purity magnesium is not only an important basic raw material for semiconductor and electronics industries, but also a promising new generation of electrochemical energy storage materials and biomedical materials. Impurities in high-purity magnesium affect material properties, which has become the most critical factor restricting its application. However, accurate analysis of multiple ultra-trace impurity elements in high-purity magnesium is extremely challenging. In this paper, based on the synergistic effect of N₂O/H₂ reaction gas mixture to eliminate spectral interference of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS), a new strategy for the quantification of 45 ultra-trace impurity elements in high-purity magnesium was proposed. The results indicated that the limits of detection (LOD) were in the range of 0.02–18.5 ng L⁻¹; the LODs of the challenging non-metallic elements Si and S were 18.5 and 12.2 ng L⁻¹, respectively; and the LODs of all the other analytes were less than 10 ng L⁻¹. Even under hot plasma conditions, LODs of alkali metal elements were also less than 5 ng L⁻¹. The spike recovery of each analyte was 93.6%–107%, and the relative standard deviation (RSD) was 3.2%–6.9%, respectively. At a 95% level of confidence, no significant differences were found between the results obtained under the optimal conditions for the analyte with the developed method and the measurement results of SF-ICP-MS. The developed method indicated low LOD, high sample throughput, and complete interference elimination, demonstrating a new avenue for the rapid determination of ultra-trace elements in high-purity magnesium.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 120-129"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45966442","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":"Outstanding fatigue performance of Mg-Gd-Zn-Zr alloy enriched with SFs rather than LPSO Structure","authors":"Yao Chen ,&nbsp;Fulin Liu ,&nbsp;Yujuan Wu ,&nbsp;Liming Peng ,&nbsp;Lang Li ,&nbsp;Chao He ,&nbsp;Qiang Chen ,&nbsp;Yongjie Liu ,&nbsp;Qingyuan Wang","doi":"10.1016/j.jma.2024.11.018","DOIUrl":"10.1016/j.jma.2024.11.018","url":null,"abstract":"<div><div>Both solute-segregated long-period stacking ordered (LPSO) structure and stacking faults (SFs) are essential in strengthening rare-earth (RE) Mg alloys. Herein, LPSO-enriched Mg and SFs-enriched Mg are fabricated and comparably investigated for fatigue performances. During fatigue, the Mg nanolayers between LPSO lamellae or SFs act as the gliding channels of dislocations. However, SFs-enriched Mg exhibits outstanding fatigue strength due to solute strengthening within Mg nanolayers. Solute strengthening is assumed to contribute to the local accumulation of basal dislocations and the activation of non-basal dislocations. Dislocations are restricted locally and cannot glide long distances to specimen surfaces, which mitigates fatigue-induced extrusions and slip markings, ultimately leading to an increase in fatigue strength. These findings guide the development of RE-Mg alloys towards a synergy between high tensile and high fatigue performances.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 90-100"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776640","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":"In vitro and in vivo studies on bioactive hydroxyapatite-coated magnesium for glaucoma drainage implant","authors":"Huanhuan Gao ,&nbsp;Yi Chen ,&nbsp;Xia Chen ,&nbsp;Liandi Huang ,&nbsp;Hao Yao ,&nbsp;Xiaomin Zhu ,&nbsp;Min Tang ,&nbsp;Yong Wang ,&nbsp;Xiangji Li ,&nbsp;Lin Xie","doi":"10.1016/j.jma.2023.09.033","DOIUrl":"10.1016/j.jma.2023.09.033","url":null,"abstract":"<div><div>Given the alarmingly increasing rates of glaucoma worldwide and the lack of satisfactory treatments, there is a dire need to explore more feasible treatment options. Magnesium (Mg) is an essential element in maintaining the functional and structural integrity of vital ocular tissues, but Mg and its alloys are rarely mentioned in ophthalmic applications. Our previous research found that hydroxyapatite-coated Mg (Mg@HA) shows the best biocompatibility and bioactivity, and exhibits the effect of inhibiting fibrosis after filtration surgery in the rabbit model, which is expected to be a promising material for glaucoma drainage device. In this study, we further demonstrated the anti-fibrosis effect of Mg@HA from the molecular signal level and the efficacy of implantation in the rabbit filtration surgery model. <em>In vitro</em> experiments showed the surface modification of Mg affects the adhesion behavior and the reorganization of cytoskeleton of Human Western blot analysis and immunofluorescence found that Mg@HA regulates the adhesion and motility of human Tenon's capsule fibroblasts mainly by down-regulating the phosphorylation of Smad2 and Smad3 in the canonical transforming growth factor-beta (TGF - β) signaling pathway. By observing and recording the condition of filtering blebs and intraocular pressure after surgery, the effectiveness of Mg@HA applied in the rabbit filtration surgery model was further evaluated. In conclusion, the application of hydroxyapatite-coated Mg in the eye has good biocompatibility and has the potential to resist postoperative glaucoma filtration fibrosis, which may be mediated by the regulation of the TGFβ/Smad signaling pathway.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 442-455"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139379758","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":"Fish scale-inspired biomimetic nanocoatings on magnesium implants for vascularized bone regeneration in infected bone defects","authors":"Dan Li ,&nbsp;Danni Dai ,&nbsp;Jianrong Wang,&nbsp;Zhen Ai,&nbsp;Chao Zhang","doi":"10.1016/j.jma.2024.07.012","DOIUrl":"10.1016/j.jma.2024.07.012","url":null,"abstract":"<div><div>The regeneration of infected bone defects is still challenging and time-consuming, due to the adverse osteogenic microenvironment caused by bacterial contamination and pronounced ischemia. Biodegradable magnesium (Mg)-based alloys are desirable for orthopedic implants due to the mechanical properties approximating those of human bone and the released Mg²⁺ ions essential to osteogenic activity. However, the fast and uncontrolled self-degradation of Mg alloy, along with the inadequate antimicrobial activity, limit their strength in the osteogenic microenvironment. Inspired by the structural and physiological characteristics of “fish scales,” two-dimensional (2D) nanomaterials, black phosphorus (BP) and graphene oxide (GO), were assembled together under the action of pulsed electric field. The bionic 2D layered BP/GO nano-coating was constructed for infection resistance, osteogenic microenvironment optimization, and biodegradation control. In the early stage of implantation, it exerted a photothermal effect to ablate bacterial biofilms and avoid contaminating the microenvironment. The blocking effect of the “nano fish scales” - 2D material superposition regulated the degradation of implants. In the later stage, it attracted the migration of vascular endothelial cells (VECs) and released phosphate slowly for <em>in situ</em> mineralization to create the microenvironment favoring vascularized bone formation. It is indicated that the enhancement of microtubule deacetylation and cytoskeletal reorganization played a key role in the effect of VEC migration and angiogenesis. This study provided a promising bionic strategy for creating osteogenic microenvironments that match the sequential healing process of infected bone defects.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 311-329"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143227185","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":"Strain rate dependence of dynamic recrystallization and texture evolution in hot compressed Mg-Gd-Er-Zr alloy","authors":"Ning Ding,&nbsp;Wenbo Du,&nbsp;Shubo Li,&nbsp;Ke Liu,&nbsp;Xian Du,&nbsp;Zijian Yu","doi":"10.1016/j.jma.2023.10.006","DOIUrl":"10.1016/j.jma.2023.10.006","url":null,"abstract":"<div><div>Hot deformation with high strain rate has been paid more attention due to its high efficiency and low cost, however, the strain rate dependent dynamic recrystallization (DRX) and texture evolution in hot deformation process, which affect the formability of metals, are lack of study. In this work, the DRX behavior and texture evolution of Mg-8Gd-1Er-0.5Zr alloy hot compressed with strain rates of 0.1 s⁻¹, 1 s⁻¹, 10 s⁻¹ and 50 s⁻¹ are studied, and the corresponding dominant mechanisms for DRX and texture weakening are discussed. Results indicated the DRX fraction was 20% and the whole texture intensity was 16.89 MRD when the strain rate was 0.1 s⁻¹, but they were 76% and 6.55 MRD, respectively, when the strain rate increased to 50 s⁻¹. The increment of DRX fraction is suggested to result from the reduced DRX critical strain and the increased dislocation density as well as velocity, while the weakened whole texture is attributed to the increased DRX grains. At the low strain rate of 0.1 s⁻¹, discontinuous DRX (DDRX) was the dominant, but the whole texture was controlled by the deformed grains with the preferred orientation of {0001}⊥CD, because the number of DDRX grains was limited. At the high strain rate of 50 s⁻¹, continuous DRX (CDRX) and twin-induced DRX (TDRX) were promoted, and more DRX grains resulted in orientation randomization. The whole texture was mainly weakened by CDRX and TDRX grains, in which CDRX plays a major role. The results of present work are significant for understanding the hot workability of Mg-RE alloys with a high strain rate.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 161-171"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138492281","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}