Journal of Magnesium and Alloys最新文献_第10页

Influence of single-pass caliber rolling on the microstructural evolution and mechanical properties of Mg10Gd binary alloy 单程口径轧制对 Mg 10Gd 二元合金微观结构演变和力学性能的影响

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.04.030

H. Yu , Z.K. Liu , Y. Liu , W. Yu , Y.L. Xu , C. Liu , B.A. Jiang , S.H. Park , K.S. Shin

引用次数: 0

Wire arc additive manufacturing of a novel ATZM31 Mg alloy: Microstructure evolution and mechanical properties 新型ATZM31镁合金的电弧增材制造:组织演变与力学性能

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2023.08.014

Yi-Hang Yang , Zhi-Ping Guan , Pin-Kui Ma , Ming-Wen Ren , Hai-Long Jia , Po Zhao , Min Zha , Hui-Yuan Wang

{"title":"Wire arc additive manufacturing of a novel ATZM31 Mg alloy: Microstructure evolution and mechanical properties","authors":"Yi-Hang Yang , Zhi-Ping Guan , Pin-Kui Ma , Ming-Wen Ren , Hai-Long Jia , Po Zhao , Min Zha , Hui-Yuan Wang","doi":"10.1016/j.jma.2023.08.014","DOIUrl":"10.1016/j.jma.2023.08.014","url":null,"abstract":"<div><div>The preparation of large-scale magnesium (Mg) alloy parts by wire arc additive manufacturing (WAAM) has broad application prospects, including automotive and aerospace industries. The chemical composition of Mg alloy wires plays a critical role in determining mechanical properties of WAAM Mg alloys. However, types of Mg alloy wires for WAAM need to be extended, in order to improve mechanical properties. Therefore, in the present work, a novel ATZM31 Mg alloy wire has been prepared and applied to the cold metal transfer (CMT)-WAAM process. This study focuses on understanding the forming quality, microstructure evolution, and mechanical properties of the ATZM31 alloy thin-wall component fabricated by WAAM. The results show that the Mg alloy thin-wall component possesses satisfactory formability, with minor sidewall roughness. The ATZM31 thin-wall component is mainly composed of columnar dendrites and equiaxed dendrites of the α-Mg phase, with the η-Al<sub>8</sub>Mn<sub>5</sub> phase distributes dispersedly at grain boundaries. The area fraction of the η-Al<sub>8</sub>Mn<sub>5</sub> phase is estimated to be ∼0.21% based on the statistical analysis of SEM images. Due to different cooling behaviors, the distribution of grain size along the build direction of the thin-walled component is uneven. The average grain size is ∼46 µm, ∼74 µm and ∼61 µm at the bottom, middle and top of the ATZM31 alloy thin-wall component, respectively. From the substrate to the top of the ATZM31 alloy thin-wall component, the hardness decreases gradually. The ultimate tensile strength along the deposition direction and build direction are ∼225 MPa and ∼214 MPa, respectively, without pronounced anisotropy. The ATZM31 alloy thin-wall component fabricated by WAAM exhibits a comparable ultimate tensile strength to forged AZ31 Mg alloys and weaker anisotropy than wrought Mg alloys.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5024-5037"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50166422","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

Strengthening mechanism and corrosion behavior of friction stir welded LAZ933 magnesium-lithium alloy 搅拌摩擦焊LAZ933镁锂合金的强化机理及腐蚀行为

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2023.03.003

Shikang Gao , Hongyun Zhao , Gaohui Li , Guangda Sun , Li Zhou , Yaobang Zhao

{"title":"Strengthening mechanism and corrosion behavior of friction stir welded LAZ933 magnesium-lithium alloy","authors":"Shikang Gao , Hongyun Zhao , Gaohui Li , Guangda Sun , Li Zhou , Yaobang Zhao","doi":"10.1016/j.jma.2023.03.003","DOIUrl":"10.1016/j.jma.2023.03.003","url":null,"abstract":"<div><div>In this study, friction stir welding (FSW) technique was applied to the LAZ933 magnesium-lithium (Mg-Li) alloy. Microstructure, mechanical properties and corrosion behaviors of friction stir welded LAZ933 magnesium-lithium alloy were analyzed by optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffractometry (XRD), transmission electron microscopy (TEM), hardness, tensile, and electrochemical test. The experimental results indicated that FSW resulted in significant refinement of β phase, reduction of α phase content as well as dissolution of Mg<sub>17</sub>Al<sub>12</sub> and AlLi (γ) precipitates in the nugget zone (NZ). The generated MgLi<sub>2</sub>Al (θ) precipitates in the NZ and heat-affected zone (HAZ) which had a coherent structure with the matrix could significantly strengthen the Mg-Li alloy. The ultimate tensile strength of the joint reached 163.5 MPa, and elongation reached 15.21%. In the weakest area of the weld (HAZ), the strengthening caused by the solid solution of α phases and formation of θ precipitates compensated the strength loss induced by the phase coarsening by thermal exposure in FSW, resulting in the joint fractured in the base metal (BM) and showed a ductile pattern. The corrosion current density changed from 4.831 × 10<sup>−5</sup> A/cm<sup>2</sup> to 2.054 × 10<sup>−5</sup> A/cm<sup>2</sup>, which indicated that the weld had better corrosion resistance than the BM.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4909-4922"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43767299","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

Fabrication and characterization of magnesium-based nanocomposites reinforced with Baghdadite and carbon nanotubes for orthopaedical applications 镁基巴格达石与碳纳米管复合材料的制备与表征

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.12.004

Mojtaba Ansari , Shiva Mahdavikia , Hossein Eslami , Mozhdeh Saghalaini , Hamid Taghipour , Fatemeh Zare , Shahin Shirani , Mohammad Hossein Alizadeh Roknabadi

{"title":"Fabrication and characterization of magnesium-based nanocomposites reinforced with Baghdadite and carbon nanotubes for orthopaedical applications","authors":"Mojtaba Ansari , Shiva Mahdavikia , Hossein Eslami , Mozhdeh Saghalaini , Hamid Taghipour , Fatemeh Zare , Shahin Shirani , Mohammad Hossein Alizadeh Roknabadi","doi":"10.1016/j.jma.2024.12.004","DOIUrl":"10.1016/j.jma.2024.12.004","url":null,"abstract":"<div><div>This study explores the potential of Mg/Carbon Nanotubes/Baghdadite composites as biomaterials for bone regeneration and repair while addressing the obstacles to their clinical application. BAG powder was synthesized using the sol-gel method to ensure a fine distribution within the Mg/CNTs matrix. Mg/1.5 wt.% CNT composites were reinforced with BAG at weight fractions of 0.5, 1.0, and 1.5 wt.% using spark plasma sintering at 450 °C and 50 MPa after homogenization via ball milling. The cellular bioactivity of these nanocomposites was evaluated using human osteoblast-like cells and adipose-derived mesenchymal stromal cells. The proliferation and attachment of MG-63 cells were assessed and visualized using the methylthiazol tetrazolium (MTT) assay and SEM, while AD-MSC differentiation was measured using alkaline phosphatase activity assays. Histograms were also generated to visualize the diameter distributions of particles in SEM images using image processing techniques. The Mg/CNTs/0.5 wt.% BAG composite demonstrated optimal mechanical properties, with compressive strength, yield strength, and fracture strain of 259.75 MPa, 180.25 MPa, and 31.65%, respectively. Machine learning models, including CNN, LSTM, and GRU, were employed to predict stress-strain relationships across varying BAG amounts, aiming to accurately model these curves without requiring extensive physical experiments. As shown by contact angle measurements, enhanced hydrophilicity promoted better cell adhesion and proliferation. Furthermore, corrosion resistance improved with a higher BAG content. This study concludes that Mg/CNTs composites reinforced with BAG concentrations below 1.0 wt.% offer promising biodegradable implant materials for orthopedic applications, featuring adequate load-bearing capacity and improved corrosion resistance.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5144-5163"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848857","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

Effect of annealing on the microstructure and mechanical anisotropy of Mg/Al composite plate 退火对镁铝复合板微观结构和机械各向异性的影响

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2023.12.001

Jian Zhang, Lifeng Ma, Zhihui Cai, Guanghui Zhao, Weitao Jia, Pengtao Liu

{"title":"Effect of annealing on the microstructure and mechanical anisotropy of Mg/Al composite plate","authors":"Jian Zhang, Lifeng Ma, Zhihui Cai, Guanghui Zhao, Weitao Jia, Pengtao Liu","doi":"10.1016/j.jma.2023.12.001","DOIUrl":"10.1016/j.jma.2023.12.001","url":null,"abstract":"<div><div>In this paper, the effects of recrystallization, grain growth and texture evolution on the formability and anisotropy of Mg/Al composite plates were studied by different annealing processes. The results show that the rolled Mg/Al composite plate exhibits obvious anisotropy and poor formability in the rolling directions (RD) and transverse directions (TD), which is the result of the synergistic effect of matrix texture and grain characteristics. Annealing-activated recrystallization can eliminate local shear bands, hardening and other defects formed by rolling, thereby softening the structure and improving the formability of the sheet. The occurrence of recrystallization behavior also makes the bimodal texture parallel to the TD distribution in the Mg matrix transform into the RD-TD surface dispersion distribution, which weakens the strong deformation texture. The Schmidt factor (SF) of each slip system is calculated to evaluate the slip system start-up probability (deformation difficulty) of the material in a certain direction. The results show that the average SF values of matrix slip in RD and TD directions increase after annealing treatment, which makes the slip system easier to start. The tensile test results show that the formability of the composite plate is the best when the annealing temperature is 300 °C. At this time, the ultimate tensile strength (UTS) and yield strength (YS) are small, the elongation (EL) is large and the anisotropy of mechanical properties is the weakest. In addition, the annealing of the composite plate leads to the transformation of the fracture mechanism from brittle fracture to ductile-brittle mixed fracture. In summary, annealing treatment can effectively improve the formability and weaken the anisotropy of Mg/Al composite plates.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5164-5178"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139431696","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

Hydrogen storage performance of MgH2 under catalysis by highly dispersed nickel-nanoparticle–doped hollow spherical vanadium nitride 高分散掺杂镍纳米粒子的空心球形氮化钒催化下 MgH2 的储氢性能

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2023.11.010

Jiaao Wu , Zhihao Liu , Haohua Zhang , Yongjin Zou , Bin Li , Cuili Xiang , Lixian Sun , Fen Xu , Ting Yu

{"title":"Hydrogen storage performance of MgH2 under catalysis by highly dispersed nickel-nanoparticle–doped hollow spherical vanadium nitride","authors":"Jiaao Wu , Zhihao Liu , Haohua Zhang , Yongjin Zou , Bin Li , Cuili Xiang , Lixian Sun , Fen Xu , Ting Yu","doi":"10.1016/j.jma.2023.11.010","DOIUrl":"10.1016/j.jma.2023.11.010","url":null,"abstract":"<div><div>Magnesium hydride (MgH<sub>2</sub>) is an exceptional material for hydrogen storage, but its high desorption temperature and slow kinetics limit its applicability. In this study, the hydrogen storage performance of MgH<sub>2</sub> was enhanced using highly dispersed Ni-nanoparticle–doped hollow spherical vanadium nitride (Ni/VN), which was synthesized via a solvothermal process. The MgH<sub>2</sub> system doped with the synthesized Ni/VN exhibited an outstanding hydrogen-storage capability. Specifically, 5.6 wt.% of H<sub>2</sub> was released within 1 h at a relatively low temperature of 513 K, whereas 6.4 wt.% of H<sub>2</sub> was released within 180 s at 598 K, followed by an almost complete dehydrogenation after 10 min at 598 K. At 423 K, the developed material absorbed ∼6.0 wt.% of H<sub>2</sub> within 5 min. The activation energy for dehydrogenation was determined to be 78.07 ± 2.91 kJ·mol<sup>−1</sup>, which was considerably lower than that of MgH<sub>2</sub> produced by ball milling (120.89 ± 5.74 kJ·mol<sup>−1</sup>), corresponding to a reduction of 35.4%. It was deduced that the formation of Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub> (hydrogen pump) through the reaction of Ni nanoparticles during dehydrogenation/hydrogenation facilitated hydrogen transport and synergistically catalyzed hydrogen absorption and desorption by MgH<sub>2</sub>, improving its hydrogen storage capability. These findings offer novel perspectives for the utilization of MgH<sub>2</sub> in large-scale applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5132-5143"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139510736","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

High-strong-ductile magnesium alloys by interactions of nanoscale quasi-long period stacking order unit with twin 通过纳米级准长周期堆叠有序单元与孪晶的相互作用实现高强韧性镁合金

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.01.015

Lutong Zhou , Tingting Niu , Guodong Zou , Huhu Su , Suyun He , Shijian Zheng , Yulong Zhu , Peng Chen , Carlos Fernandez , Qiuming Peng

{"title":"High-strong-ductile magnesium alloys by interactions of nanoscale quasi-long period stacking order unit with twin","authors":"Lutong Zhou , Tingting Niu , Guodong Zou , Huhu Su , Suyun He , Shijian Zheng , Yulong Zhu , Peng Chen , Carlos Fernandez , Qiuming Peng","doi":"10.1016/j.jma.2024.01.015","DOIUrl":"10.1016/j.jma.2024.01.015","url":null,"abstract":"<div><div>Magnesium alloys with high strength in combination of good ductility are especially desirable for applications in transportation, aerospace and bio-implants owing to their high stiffness, abundant raw materials, and environmental friendliness. However, the majority of traditional strengthening approaches including grain refining and precipitate strengthening can usually prohibit dislocation movement at the expense of ductility invariably. Herein, we report an effective strategy for simultaneously enhancing yield strength (205 MPa, 2.41 times) and elongation (23%, 1.54 times) in a Mg-0.2Zn-0.6Y (at.%) alloy at room temperature, based on the formation of a nanosized quasi-long period stacking order unit (QLPSO)-twin structure by ultrahigh-pressure treatment followed by annealing. The formation reason and strong-ductile mechanism of the unique QLPSO-twin structure have been clarified by transmission electron microscopy observations and molecule dynamics simulations. The improved strength is mainly associated with the presence of nanosized QLPSO and the modified ∠86.3<sup>o</sup> QLPSO-twin boundary (TB) interface, effectively pinning dislocation movement. Comparatively, the enhanced ductility is related to the ∠3.7<sup>o</sup> QLPSO-TB interface and micro-kinks of nanoscale QLPSO, providing some paths for plastic deformation. This strategy on the QLPSO-twin structure might provide an alternative perspective for designing innovative hexagonal close-packed structural materials with superior mechanical properties.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4953-4965"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139660536","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

The role of different electromagnetic fields in magnesium alloys direct-chill casting: Numerical simulation and experimental investigation 不同电磁场在镁合金直接冷却铸造中的作用：数值模拟与实验研究

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.01.036

Yonghui Jia , Xingrui Chen , Qichi Le , Yunchang Xin

{"title":"The role of different electromagnetic fields in magnesium alloys direct-chill casting: Numerical simulation and experimental investigation","authors":"Yonghui Jia , Xingrui Chen , Qichi Le , Yunchang Xin","doi":"10.1016/j.jma.2024.01.036","DOIUrl":"10.1016/j.jma.2024.01.036","url":null,"abstract":"<div><div>Based on the magnetic-fluid-thermal multiphysics transient coupling numerical simulation results of the magnesium alloy direct-chill (DC) casting, the effects of conventional vibration electromagnetic field (VMF), differential phase vibration electromagnetic field (DP-VMF), conventional low-frequency electromagnetic field (LFMF), and differential phase low-frequency electromagnetic field (DP-LFMF) on melt flow were systematically investigated from the perspective of impulse. Based on thermal behavior and crystal growth theory, the relationships between the velocity field, temperature field, and the morphology of the solidification structure were discussed, and the effect and mechanism of different electromagnetic fields in improving the solidification structure were revealed. Simultaneously, the effects of different electromagnetic fields on AZ31B and AZ80 alloys were investigated. The DC casting experiment verified the theoretical results. Results show that applying low-frequency electromagnetic fields (LFMF and DP-LFMF) can effectively inhibit the formation of columnar grain, but the effect of microstructure refinement is weak; the impact of vibration electromagnetic fields (VMF and DP-VMF) is precisely the opposite. The structure refinement effect of DP-VMF and the inhibition effect of DP-LFMF on columnar grains are better than those of their conventional electromagnetic fields. In the presence of DP-VMF, the average grain size of the center, 1/2 radius, and the edge of the ingot decrease by about 42%, 49%, and 77%, respectively, compared with no electromagnetic field.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5005-5023"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139943474","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

Review of progress on fabrication technology of Mg matrix composites 镁基复合材料制备技术进展综述

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.11.026

Chenyang Jiang , Lidong Gu , Hongwei Xiong , Jingya Wang , Liping Zhou , Mingjie Shen , Jie Wang , Tao Ying , Xiaoqin Zeng

{"title":"Review of progress on fabrication technology of Mg matrix composites","authors":"Chenyang Jiang , Lidong Gu , Hongwei Xiong , Jingya Wang , Liping Zhou , Mingjie Shen , Jie Wang , Tao Ying , Xiaoqin Zeng","doi":"10.1016/j.jma.2024.11.026","DOIUrl":"10.1016/j.jma.2024.11.026","url":null,"abstract":"<div><div>Mg matrix composites (MgMCs) with enhanced mechanical and functional properties, as well as improved elastic modulus, have aroused rising attention from the aerospace, new energy vehicles, and consumer electronics industries. The suitability of the fabrication process is crucial for achieving uniform dispersion of various reinforcing materials within the Mg alloy matrix and for forming strong interfacial bonding. This ensures that the produced MgMCs meet the requirements for fabricating various components with different demands for size and properties. This paper comprehensively reviews the present fabrication methods for MgMCs in four categories: stir casting, external addition methods, in-situ synthesis methods and novel fabrication methods. It comprehensively focuses on the fabrication principles, process characteristics and key parameters optimization of each technology. Through in-depth analysis, their advantages, limitations and applications are evaluated. Meanwhile, the latest research achievements in microstructure control and mechanical performance optimization are explored. Eventually, the development directions of the fabrication methods for MgMCs in the future are also discussed.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4768-4807"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142815935","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

Grain growth stagnation at 525 °C by nanoparticles in a solid-state additively manufactured Mg-4Y-3RE alloy 525℃时，纳米颗粒在Mg-4Y-3RE合金中的晶粒生长停滞

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI: 10.1016/j.jma.2024.12.010

Xingjian Zhao , Daniel Olden , Brady Williams , Abhishek Pariyar , Dalong Zhang , Matthew Murphy , Philippa Reed , Paul Allison , Brian Jordon , Jiahui Qi , W. Mark Rainforth , Dikai Guan

{"title":"Grain growth stagnation at 525 °C by nanoparticles in a solid-state additively manufactured Mg-4Y-3RE alloy","authors":"Xingjian Zhao , Daniel Olden , Brady Williams , Abhishek Pariyar , Dalong Zhang , Matthew Murphy , Philippa Reed , Paul Allison , Brian Jordon , Jiahui Qi , W. Mark Rainforth , Dikai Guan","doi":"10.1016/j.jma.2024.12.010","DOIUrl":"10.1016/j.jma.2024.12.010","url":null,"abstract":"<div><div>Ultrafine-grained (UFG) materials exhibit high strengths due to grain boundary strengthening, but grains can grow rapidly if post heat treatment is required, making it challenging to achieve grain boundary and precipitation strengthening simultaneously. Grain growth stagnation at 525 °C (0.87 T<sub>m</sub>, melting point) was observed in a Mg-4Y-3RE alloy fabricated by additive friction stir deposition (AFSD), a novel solid-state additive manufacturing technology. The AFSD processing produced a UFG microstructure and two major second phases, Mg<sub>41</sub>RE<sub>5</sub> and nanoparticles containing Y and O. After solid solution treatment (SST) at 525 °C for 72 h, no noticeable grain growth occurred. While Mg<sub>41</sub>RE<sub>5</sub> particles dissolved into the matrix within 4 h of SST, the nanoparticles remained stable and unaltered. The observed grain growth stagnation is attributed to Zener pinning by these thermally stable nanoparticles. These new findings offer a novel approach to designing UFG materials with exceptional thermal stability for high-temperature applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4976-4987"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857838","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