Journal of Magnesium and Alloys最新文献_第4页

A high-performance degradable Mg alloy suturing staple for single-arm oral stapling robot 用于单臂口腔缝合机器人的高性能可降解镁合金缝合钉

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2023.06.009

Q.H. Wang , S.S. Liang , F.S. Yuan , B.Y. Liu , J.Z. Yu , W. Wang , N. Fakhar , H.X. Li

{"title":"A high-performance degradable Mg alloy suturing staple for single-arm oral stapling robot","authors":"Q.H. Wang , S.S. Liang , F.S. Yuan , B.Y. Liu , J.Z. Yu , W. Wang , N. Fakhar , H.X. Li","doi":"10.1016/j.jma.2023.06.009","DOIUrl":"10.1016/j.jma.2023.06.009","url":null,"abstract":"<div><div>Minimally invasive surgery (MIS) robots, such as single-arm stapling robots, are key to oral and maxillofacial surgery because they overcome space constraints in the oral cavity and deep throat. However, biodegradable suture staples should be developed for the single-arm stapling robots to avoid a secondary operation. For this aim, a new type of Mg-3Zn-0.2Ca-2Ag biodegradable alloy wire was developed in this study applied as suture staples. Its tensile strength, yield strength, and elongation are 326.1 MPa, 314.5 MPa, and 19.6%, respectively. Especially, the alloy wire attains the highest yield strength value reported among all the biodegradable Mg wires, which is mainly attributed to fine grain strengthening and second phase strengthening such as Mg<sub>2</sub>Zn<sub>11</sub> nano phase strengthening. Moreover, the corrosion rate of this alloy wire in simulated body fluid (SBF) reaches 26.8 mm/y, the highest value among all the biodegradable Mg alloy wires reported so far, which is mainly from the intensified galvanic corrosion between the Ag<sub>17</sub>Mg<sub>54</sub> phase and the Mg matrix. <em>In vitro</em> studies demonstrate that the alloy wire exhibits good blood compatibility and low cytotoxicity. The cone beam computed tomography (CBCT) data shows that the suture staple made of the Mg alloy wire provides better mechanical support in the early postoperative period. From the single arm robot tests, it confirms that suture staples can close the wound tightly and remain stable over time. This research provides a good material selection for the automated suturing in oral and throat surgery robots.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4096-4118"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48798217","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

Enhanced corrosion resistance, antibacterial properties and osteogenesis by Cu ion optimized MgAl-layered double hydroxide on Mg alloy 镁合金上的铜离子优化镁铝层双氢氧化物可增强耐腐蚀性、抗菌性和成骨性

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2023.08.010

Qingge Wang , Chuting Liao , Bo Liu , Shaohui Jing , Zhenhu Guo , Luxin Liang , Jingbo Liu , Ning Li , Runhua Zhou , Ian Baker , Hong Wu

{"title":"Enhanced corrosion resistance, antibacterial properties and osteogenesis by Cu ion optimized MgAl-layered double hydroxide on Mg alloy","authors":"Qingge Wang , Chuting Liao , Bo Liu , Shaohui Jing , Zhenhu Guo , Luxin Liang , Jingbo Liu , Ning Li , Runhua Zhou , Ian Baker , Hong Wu","doi":"10.1016/j.jma.2023.08.010","DOIUrl":"10.1016/j.jma.2023.08.010","url":null,"abstract":"<div><div>Magnesium (Mg) and its alloys have similar densities and elastic moduli to natural bone, making them an excellent choice for orthopedic implants. However, Mg alloys are prone to electrochemical corrosion, which often leads to implant failure and hinders the further development of Mg alloys due to bacterial infection around the implant. This work aims to enhance the corrosion resistance of Mg alloys, and provide theoretical guidance for solving the problem that Mg-based orthopedic implants are susceptible to bacterial infection and, thus, implant failure. In order to solve the corrosion problem, the Mg alloy AZ91D was used as the substrate, and a compact and uniform MgAlCu-layered double hydroxide (Mg(Cu)-LDH) was prepared on its surface using a hydrothermal method. The Mg(Cu)-LDH provides a barrier between the AZ91D and corrosive liquid, which effectively protects the Mg substrate from being corroded. The Mg(Cu)-LDH shows great cell viability for MC3T3-E1 cells. The Cu<sup>2+</sup> and Mg<sup>2+</sup> in the coating also endow the Mg(Cu)-LDH/AZ91D with antibacterial properties, showing strong antibacterial effects on both <em>E. coli</em> and <em>S. aureus</em> with antibacterial rates over 85%. Finally, <em>in vivo</em> results indicated that a LDH-coated implant had no systemic effects on the hearts, livers, spleens, lungs or kidneys. It was shown that 4 weeks after surgery the ratio of bone volume to tissue volume (BV/TV) of the LDH implant was 24%, which was 1.7 times that observed for AZ91D.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4174-4190"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50166147","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

Understanding the basal texture initiation in a randomly-oriented AZ31B alloy during cold-rolling 了解冷轧过程中无规取向 AZ31B 合金基底纹理的形成过程

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2023.12.005

Wenhan Jin , Baolin Wu , Li Zhang , Jie Wang , Claude Esling , Marie-Jeanne Philippe

{"title":"Understanding the basal texture initiation in a randomly-oriented AZ31B alloy during cold-rolling","authors":"Wenhan Jin , Baolin Wu , Li Zhang , Jie Wang , Claude Esling , Marie-Jeanne Philippe","doi":"10.1016/j.jma.2023.12.005","DOIUrl":"10.1016/j.jma.2023.12.005","url":null,"abstract":"<div><div>This study experimentally investigated basal texture initiation and development during cold rolling, in combination with simulation using a modified visco-plastic self-consistent (VPSC) model. The results showed that the orientation of extension twins exhibit a random distribution after rolling. In contrast, the matrix grains deformed by slips tend to orientate with their c-axis around the normal direction (ND). Plastic strain concentration induced by dislocation piling up at grain boundaries contributes to plastic deformation inhomogeneity, and promotes the basal–pyramidal and prismatic–prismatic binary slips. Incorporated with the interactions between the basal 〈<strong>a</strong>〉 and pyramidal 〈<strong>c</strong> + <strong>a</strong>〉 dislocations, and between the prismatic 〈<strong>a</strong>〉 dislocations, the VPSC model replicates the experimental results, effectively demonstrating the process of the basal texture initiation and development. The basal texture initiation is independent of twinning, and results mainly from the development of misorientation induced by the formation of dislocation sub-boundaries via the interaction between the basal 〈<strong>a</strong>〉 and pyramidal 〈<strong>c</strong> + <strong>a</strong>〉 dislocations.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4311-4333"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139551457","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

Developing an efficient anticorrosive system through advanced modification of plasma-electrolyzed MgO with CeNiLDH complexed with V₂O₅ nanoparticles and (2E)-But-2-enedioic acid 用 V₂O₅ 纳米粒子和 (2E)-But-2-enedioic acid 复合物 CeNiLDH 对等离子电解氧化镁进行高级改性，开发高效防腐系统

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2024.10.015

Mosab Kaseem , Ananda Repycha Safira , Mohammad Aadil , Talitha Tara Thanaa , Arash Fattah-alhosseini

{"title":"Developing an efficient anticorrosive system through advanced modification of plasma-electrolyzed MgO with CeNiLDH complexed with V₂O₅ nanoparticles and (2E)-But-2-enedioic acid","authors":"Mosab Kaseem , Ananda Repycha Safira , Mohammad Aadil , Talitha Tara Thanaa , Arash Fattah-alhosseini","doi":"10.1016/j.jma.2024.10.015","DOIUrl":"10.1016/j.jma.2024.10.015","url":null,"abstract":"<div><div>Advanced hybrid materials with unique properties are essential for addressing the demands of increasingly complex applications. Despite their importance, the self-assembly of layered double hydroxides (LDH) with metallic oxide nanoparticles and dicarboxylic acids is constrained by a limited understanding of the formation mechanisms and difficulties in evaluating their anticorrosive performance. In this study, we developed a novel anticorrosive system by intercalating CeNiLDH with a complex of vanadium pentoxide (V₂O₅) nanoparticles and (2E)‑but-2-enedioic acid ((2E)-BDA) on a MgO layer created through plasma-electrolysis of AZ31 Mg alloy. This system was compared with LDH films intercalated with either V₂O₅ or (2E)-BDA alone. The intercalation of LDH with V₂O₅ and (2E)-BDA resulted in a flower-like structure, while modification with their complex led to a more compact, cloud-like formation. These cloud-like structures, driven by enhanced absorption and robust hydrogen bonding throughout the hierarchical network, effectively suppress corrosion by delaying the movement of corrosive anions. This was reflected in a polarization resistance of 1.51 × 10¹⁰ Ω·cm²<strong>,</strong> which is approximately two orders of magnitude times higher than the resistance of the unmodified LDH film (3.41 × 10⁸ Ω·cm²)<strong>.</strong> Additionally, the corrosion current density (<em>i<sub>corr</sub></em>) of the VOBDA sample showed a decrease by four orders of magnitude compared to the unmodified LDH sample, emphasizing the superior anticorrosive performance of this hybrid coating. Density functional theory (DFT) was used to elucidate the bonding and formation mechanisms between LDH and the inorganic-organic complex.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4205-4218"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142588330","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

Orchestrated degradation behavior of Mg mesh for calvarial bone defect reconstruction 用于腓骨缺损重建的镁网的协调降解行为

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2024.09.014

Ume Farwa , Seongsu Park , Myeongki Park , Ihho Park , Byoung-Gi Moon , Byong-Taek Lee

{"title":"Orchestrated degradation behavior of Mg mesh for calvarial bone defect reconstruction","authors":"Ume Farwa , Seongsu Park , Myeongki Park , Ihho Park , Byoung-Gi Moon , Byong-Taek Lee","doi":"10.1016/j.jma.2024.09.014","DOIUrl":"10.1016/j.jma.2024.09.014","url":null,"abstract":"<div><div>The biodegradability and biocompatibility of Mg alloys have rendered them favorable for cranial reconstruction applications. However, their rapid degradation rate has limited widespread use. In this study, we developed a Mg alloy -based mesh designed for calvarial bone defect reconstruction. We modulated the bone formation through the controlled degradation rate of the Mg alloy mesh. To achieve this, the Mg alloy mesh was coated with 2 types of coatings: Zn-d/Ca-P and Zn-d/Ca-P/P. Our findings revealed that, in comparison to the uncoated Mg alloy, both Zn-d/Ca-P and Zn-d/Ca-P/P coatings significantly reduced the degradation rate. The biocompatibility of the coated meshes improved markedly. With the Zn-d/Ca-P coating, there was not only an augmentation in the osteogenic potential of the Mg mesh but also an enhancement in angiogenic capacity. These meshed Mg samples were subsequently implanted into calvarial defects in rats. Bone regeneration was accelerated in specimens treated with Zn-d/Ca-P and Zn-d/Ca-P/P coatings compared to those with the bare Mg mesh. Furthermore, the in vivo assessments indicated that the coated meshes promoted angiogenesis. Nonetheless, the degradation rate of the Zn-d/Ca-P/P coating was slower than that of Zn-B/Ca-P. For applications requiring prolonged mechanical support, the Zn-d/Ca-P/P coating on Mg alloy is recommended, whereas the Zn-d/Ca-P coating is advisable for rapid regeneration where extended mechanical support is not critical.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4259-4277"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450157","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

Realizing impressive superplasticity in a low-alloyed Mg-Zn-Ca-Al-Mn alloy: The roles of grain boundary segregation and dense β-Mn particles 在低合金Mg-Zn-Ca-Al-Mn合金中实现令人印象深刻的超塑性：晶界偏析和致密β-Mn颗粒的作用

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2023.05.014

Tian-Shuai Wang , Zhen-Ming Hua , Cheng Wang , Min Zha , Yipeng Gao , Hui-Yuan Wang

{"title":"Realizing impressive superplasticity in a low-alloyed Mg-Zn-Ca-Al-Mn alloy: The roles of grain boundary segregation and dense β-Mn particles","authors":"Tian-Shuai Wang , Zhen-Ming Hua , Cheng Wang , Min Zha , Yipeng Gao , Hui-Yuan Wang","doi":"10.1016/j.jma.2023.05.014","DOIUrl":"10.1016/j.jma.2023.05.014","url":null,"abstract":"<div><div>Achieving impressive superplasticity is an important strategy to manufacture Mg alloy products with complex shapes. In the present study, we report that an excellent superplastic deformation with elongation larger than 500% can be achieved at 623 K and 1.0 × 10<sup>−3</sup> <em>s</em><sup>−</sup><sup>1</sup> in a Mg-1.51Zn-0.59Ca-0.59Al-0.70Mn (wt.%, ZXAM2111) alloy fabricated by equal-channel angular pressing. The superplastic deformation is mainly carried by grain boundary sliding (GBS), accompanied by a grain size growth from ∼3.0 µm to ∼6.0 µm after deformation. Before deformation, the ZXAM2111 alloy is mainly characterized by a strong co-segregation of Zn and Ca atoms at grain boundaries and uniformly distributed β-Mn particles. With deformation proceeding, the β-Mn particles further dynamically precipitate along grain boundaries that parallel the tensile axis, leading to improved resistance to grain coarsening. Although the enhanced stabilizing effects decrease the strain rate sensitivity value, the resulting impressive microstructure stability provides a cornerstone of the active operation of GBS, facilitating the achievement of superplastic deformation. The present work could provide insight into developing low-alloyed Mg alloys with high microstructure thermal stability to achieve superplasticity.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4085-4095"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43360674","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

Research advances in multi-scale numerical simulations of forming and microstructures for magnesium alloys 镁合金成型和微观结构多尺度数值模拟的研究进展

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2024.06.031

Guo Li , Bin Li , Xingyu Bai , Hao Chen , Yuanding Huang , Yan Yang , Guobing Wei , Weidong Xie , Xiaodong Peng , Junwei Liu

{"title":"Research advances in multi-scale numerical simulations of forming and microstructures for magnesium alloys","authors":"Guo Li , Bin Li , Xingyu Bai , Hao Chen , Yuanding Huang , Yan Yang , Guobing Wei , Weidong Xie , Xiaodong Peng , Junwei Liu","doi":"10.1016/j.jma.2024.06.031","DOIUrl":"10.1016/j.jma.2024.06.031","url":null,"abstract":"<div><div>It is one concern of the researchers how magnesium (Mg) alloys solidify under different conditions and how their microstructure evolves during solidification, and what are the relationship between the macroscopic properties and various microstructures. Such issues are difficult to be revealed through experiments only, especially for the newly developed Mg alloys, for which there is a lack of more systematic and mature system. However, multi-scale modeling and simulation can promote and deepen our understanding of the microstructure and its deformation mechanism. In this paper, we review and summarize the recent research progress of numerical simulation of Mg alloys in forming and microstructure, namely casting, extrusion, rolling, and welding, using crystal plasticity finite element (CPFEM) and molecular dynamics (DM) methods. Besides, the methods and innovations of modeling are also summarized. Lastly, the paper discusses the development prospects and challenges of the numerical simulation in the field of Mg alloys.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 3898-3946"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701163","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

Catalytic mechanisms of nickel nanoparticles for the improved dehydriding kinetics of magnesium hydride 纳米镍对改善氢氧化镁脱氢动力学的催化机理

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2023.07.002

Shuaijun Ding , Yuqing Qiao , Xuecheng Cai , Congcong Du , Yixuan Wen , Xun Shen , Lidong Xu , Shuang Guo , Weimin Gao , Tongde Shen

{"title":"Catalytic mechanisms of nickel nanoparticles for the improved dehydriding kinetics of magnesium hydride","authors":"Shuaijun Ding , Yuqing Qiao , Xuecheng Cai , Congcong Du , Yixuan Wen , Xun Shen , Lidong Xu , Shuang Guo , Weimin Gao , Tongde Shen","doi":"10.1016/j.jma.2023.07.002","DOIUrl":"10.1016/j.jma.2023.07.002","url":null,"abstract":"<div><div>MgH<sub>2</sub>, albeit with slow desorption kinetics, has been extensively studied as one of the most ideal solid hydrogen storage materials. Adding such catalyst as Ni can improve the desorption kinetics of MgH<sub>2</sub>, whereas the catalytic role has been attributed to different substances such as Ni, Mg<sub>2</sub>Ni, Mg<sub>2</sub>NiH<sub>0.3</sub>, and Mg<sub>2</sub>NiH<sub>4</sub>. In the present study, Ni nanoparticles (Ni-NPs) supported on mesoporous carbon (Ni@C) have been synthesized to improve the hydrogen desorption kinetics of MgH<sub>2</sub>. The utilization of Ni@C largely decreases the dehydrogenation activation energy from 176.9 to 79.3 kJ mol<sup>−1</sup> and the peak temperature of dehydrogenation from 375.5 to 235 °C. The mechanism of Ni catalyst is well examined by advanced aberration-corrected environmental transmission electron microscopy and/or x-ray diffraction. During the first dehydrogenation, detailed microstructural studies reveal that the decomposition of MgH<sub>2</sub> is initially triggered by the Ni-NPs, which is the rate-limiting step. Subsequently, the generated Mg reacts rapidly with Ni-NPs to form Mg<sub>2</sub>Ni, which further promotes the dehydrogenation of residual MgH<sub>2</sub>. In the following dehydrogenation cycle, Mg<sub>2</sub>NiH<sub>4</sub> can rapidly decompose into Mg<sub>2</sub>Ni, which continuously promotes the decomposition of MgH<sub>2</sub>. Our study not only elucidates the mechanism of Ni catalyst but also helps design and assemble catalysts with improved dehydriding kinetics of MgH<sub>2</sub>.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4278-4288"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45230773","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

Breaking the trade off between corrosion resistance and fatigue lifetime of the coated Mg alloy through cold spraying submicron-grain Al alloy coatings 通过冷喷涂亚微米晶粒铝合金涂层，打破了涂层镁合金的耐蚀性和疲劳寿命之间的平衡

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2022.12.011

XiaoTao Luo , YingKang Wei , JiHao Shen , Ninshu Ma , Chang-Jiu Li

{"title":"Breaking the trade off between corrosion resistance and fatigue lifetime of the coated Mg alloy through cold spraying submicron-grain Al alloy coatings","authors":"XiaoTao Luo , YingKang Wei , JiHao Shen , Ninshu Ma , Chang-Jiu Li","doi":"10.1016/j.jma.2022.12.011","DOIUrl":"10.1016/j.jma.2022.12.011","url":null,"abstract":"<div><div>Although magnesium (Mg) alloys are the lightest among structural metals, their inadequate corrosion resistance makes them difficult to be used in energy-saving lightweight structures. Moreover, the improvement in corrosion resistance by the conventional surface treatments is always achieved at the expense of sacrificing the fatigue lifetime. In this study, high purity aluminum (Al) and AlMgSi alloy coatings were deposited on Mg alloys via an <em>in-situ</em> micro-forging (MF) assisted cold spray (MFCS) process for simultaneous higher corrosion resistance and longer fatigue lifetime. Besides contributing to a highly dense microstructure, the <em>in-situ</em> MF also greatly refines the grain of the deposited Al alloy coating to the sub-micrometer range due to the enhanced dynamic recrystallization and also generates notable compressive residual stress up to 210 MPa within the AlMgSi coating. The absence of secondary phases in the AlMgSi alloy coatings enable the coated Mg alloy with corrosion resistance, which is even better than its bulk AlMgSi counterparts. The unique combination of refined microstructure and the prominent compressive residual stress within the AlMgSi coatings, effectively delayed the crack initiation upon repeated dynamic loading, thereby leading to ∼10 times increase in the fatigue lifetime of the Mg Alloy. However, although residual stress is also generated in the submmicro-sized grained pure Al coating, the low intrinsic strength of the coating layer leads to a lower fatigue lifetime than the uncoated Mg alloy substrate. The present work is aimed to provide a facile approach to break the trade-off between corrosion resistance improvement and fatigue lifetime of the coated Mg alloys.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 4229-4243"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48984197","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

Magnesium ferrites and their composites based photocatalysts: Synthesis approaches, effect of doping, and operational parameters on photocatalytic performance for wastewater remediation 基于铁氧体镁及其复合材料的光催化剂：用于废水修复的光催化性能的合成方法、掺杂效果和操作参数

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2024-10-01 DOI: 10.1016/j.jma.2024.10.017

Rohit Jasrotia , Kanika Raj , Suman , M. Ramya , Rajesh Kumar , Deepak Pathania , Yogesh Kumar , Abhishek Kandwal

{"title":"Magnesium ferrites and their composites based photocatalysts: Synthesis approaches, effect of doping, and operational parameters on photocatalytic performance for wastewater remediation","authors":"Rohit Jasrotia , Kanika Raj , Suman , M. Ramya , Rajesh Kumar , Deepak Pathania , Yogesh Kumar , Abhishek Kandwal","doi":"10.1016/j.jma.2024.10.017","DOIUrl":"10.1016/j.jma.2024.10.017","url":null,"abstract":"<div><div>In recent years, increased discharge of toxic effluents into water bodies has severely harmed ecosystems and human well-being. Various techniques are employed to remove contaminants, among which photocatalysis have proven to be the most environment friendly and effective technique. This review focuses on MgFe<sub>2</sub>O<sub>4</sub>, an exceptional photocatalyst owing to their small band gap, spherical shape, magnetic responsivity, stability, reusability, cost-effectiveness and small crystallite size. We have covered comprehensive comparison of research studies from the past decade to assess. Magnesium ferrite's photocatalytic potential in pure, doped, and composite forms. Along with synthesis methods, degradation mechanisms, and shortcomings explained in detail. Furthermore, we have highlighted the enhanced photocatalytic capability of doped MgFe<sub>2</sub>O<sub>4</sub> and their nanocomposites towards the various organic contaminants upon visible light irradiation under a comparatively short period of time. Factors like cation distribution, dosage, pH, as well as methods for recovery and reuse are discussed to aid in production of more efficient photocatalysts. There has been a lack of information on the techniques that can be used to overcome the various shortcomings of MgFe<sub>2</sub>O<sub>4</sub> ferrite. Hence, we have accentuated on bringing forth such advanced techniques that would aid in driving the researchers’ attention towards the practical and industrial application of the hybrid MgFe<sub>2</sub>O<sub>4</sub> nanoparticles. Lastly, the research gaps and industrial need of MgFe<sub>2</sub>O<sub>4</sub> ferrite-based materials were addressed to offer a concise view.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 10","pages":"Pages 3996-4044"},"PeriodicalIF":15.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597100","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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