Journal of Magnesium and Alloys最新文献

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Effect of LIPUS on the degradation behavior of magnesium alloy scaffolds for bone repair: Insights from in vitro and in vivo studies LIPUS对镁合金骨修复支架降解行为的影响:来自体外和体内研究的见解
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-11 DOI: 10.1016/j.jma.2025.02.031
Yuan Zhang, Jun Wang, Hongyan Tang, Mingran Zheng, Delin Ma, Junfei Huang, Wenxiang Li, Qichao Zhao, Zhaotong Sun, Wancheng Li, Jie Wang, Shijie Zhu, Liguo Wang, Xiaochao Wu, Shaokang Guan
{"title":"Effect of LIPUS on the degradation behavior of magnesium alloy scaffolds for bone repair: Insights from in vitro and in vivo studies","authors":"Yuan Zhang, Jun Wang, Hongyan Tang, Mingran Zheng, Delin Ma, Junfei Huang, Wenxiang Li, Qichao Zhao, Zhaotong Sun, Wancheng Li, Jie Wang, Shijie Zhu, Liguo Wang, Xiaochao Wu, Shaokang Guan","doi":"10.1016/j.jma.2025.02.031","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.031","url":null,"abstract":"Magnesium (Mg) alloys have excellent biocompatibility and biodegradability, making them promising for clinical applications. However, their rapid degradation compared to bone healing limits their effectiveness. In this study, low-intensity pulsed ultrasound (LIPUS), widely used clinically to promote bone healing, was combined with Mg alloy scaffolds to evaluate scaffold degradation under dynamic conditions, <em>in vitro</em> using Hanks’ balanced salt solution + BSA solution and <em>in vivo</em> in the femoral condyles of male SD rats. Results showed that LIPUS accelerated the initial degradation of the scaffold in both <em>in vivo</em> and <em>in vitro</em> experiments. <em>In vitro</em>, LIPUS increased BSA adsorption on scaffold surfaces, with adsorption increasing alongside LIPUS intensity. Limited BSA replenishment led to a thin organic-inorganic film that provided weak resistance to corrosive ions, accelerating degradation. Cavitation induced by LIPUS caused microbubble collapse, detaching Ca-P salts from scaffold surfaces. <em>In vivo</em>, LIPUS enhanced cell membrane permeability and activity, promoting the secretion of substances that formed a thicker organic-inorganic composite layer. Continuous material replenishment in the <em>in vivo</em> environment ensured the protective effect of this layer against corrosive ions, while embedded Ca-P salts were less likely to detach. In addition, LIPUS promotes bone modification. These findings highlight the potential of combining LIPUS with Mg alloys to regulate scaffold degradation, offering innovative strategies for clinical bone repair.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"4 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820073","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}
引用次数: 0
Estimation of Peierls-Nabarro stress of dislocations by the first-principles calculation in Mg alloys and their effects on plasticity 用第一性原理计算估计镁合金位错的Peierls-Nabarro应力及其对塑性的影响
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-10 DOI: 10.1016/j.jma.2025.01.026
Mingdi Yu, Jingya Wang, Zhigang Ding, Bo Hu, Hongwei Xiong, Sheng Zhang, Zhenfei Jiang, Zhihua Dong, Tao Ying, Xiaoqin Zeng
{"title":"Estimation of Peierls-Nabarro stress of dislocations by the first-principles calculation in Mg alloys and their effects on plasticity","authors":"Mingdi Yu, Jingya Wang, Zhigang Ding, Bo Hu, Hongwei Xiong, Sheng Zhang, Zhenfei Jiang, Zhihua Dong, Tao Ying, Xiaoqin Zeng","doi":"10.1016/j.jma.2025.01.026","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.026","url":null,"abstract":"Poor plasticity is an intrinsic disadvantage of magnesium (Mg) alloys, which limits their wide application at room temperature. Alloying is an accepted method to tune the plastic deformation mode and improve plasticity. However, the effect of solute atoms on the activation of different dislocations is still unclear and has rarely been systematically investigated in Mg alloys. In this work, the formulations of Peierls-Nabarro stresses (σ<sub>p</sub>) for edge and screw dislocations along various slip planes in Mg-X (X = Y, Ca, Nd, Zn, Al and Sn) alloys are firstly derivate, as well as the calculation of the parameter K (energy factor) based on the first-principles calculation. The effects of solute atoms on the σ<sub>p</sub> of various types of dislocations are systematically studied. The difference of the σ<sub>p</sub> between the Mg-X alloy and pure Mg, i.e., Δσ<sub>p</sub>, is determined, which is strongly influenced by the solute atoms. The negative Δσ<sub>p</sub> reflects the promotion of dislocation activation. The relationship between the Δσ<sub>p</sub> of different non-basal dislocations and elongation in eight Mg-X alloys is explored. The simultaneous improvement of the activation of the prismatic 〈a〉 and the pyramidal 〈c + a〉 dislocations is discovered, which can be achieved by specific alloying elements. Cooperative activation of the prismatic 〈a〉 and the pyramidal 〈c + a〉 dislocations owing to the reduced Δσ<sub>p</sub> is shown to closely correlate with the significant increased plasticity of the Mg alloys. These findings advance a novel perspective on alloy design strategies for Mg alloys with improved plasticity.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"39 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814343","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}
引用次数: 0
Refinement of Mg2Si in Mg-Al-Si alloys through Ca and Y additions: A novel core-shell structure evolution mechanism and enhanced mechanical properties Ca和Y对Mg-Al-Si合金中Mg2Si的细化:一种新的核壳结构演化机制和增强的力学性能
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-07 DOI: 10.1016/j.jma.2025.03.008
Jinhui Huang, Shuhong Liu, Zheyuan Liu, Xuezhen Che, Martin Friák, Yong Du
{"title":"Refinement of Mg2Si in Mg-Al-Si alloys through Ca and Y additions: A novel core-shell structure evolution mechanism and enhanced mechanical properties","authors":"Jinhui Huang, Shuhong Liu, Zheyuan Liu, Xuezhen Che, Martin Friák, Yong Du","doi":"10.1016/j.jma.2025.03.008","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.008","url":null,"abstract":"Comprehensive experimental and theoretical investigations on microstructure and mechanical properties were conducted to explore the refinement of Mg<sub>2</sub>Si in Mg-Al-Si alloys through the addition of Ca and Y. Alloys of Mg-Al<sub>5.5</sub>-Si<sub>9.5</sub>-Ca<em><sub>x</sub></em> (<em>x</em> = 0, 0.05, 0.1, 0.15, wt.%) and Mg-Al<sub>5.5</sub>-Si<sub>9.5</sub>-Y<em><sub>x</sub></em> (<em>x</em> = 0, 0.3, 0.6, 0.9, wt.%) were designed based on the CALPHAD (CALculations of PHAse Diagram) calculations and literature data. With the experimentally determined optimal individual addition of 0.1 wt.% Ca and 0.9 wt.% Y respectively, a cross-experiment involving simultaneous addition of Ca and Y for the refinement of Mg<sub>2</sub>Si was carried out. The alloy composition with the optimal refinement effect and mechanical properties was identified as Mg-Al<sub>5.5</sub>-Si<sub>9.5</sub>-Ca<sub>0.1</sub>-Y<sub>0.6</sub> (wt.%). In Y-containing alloys, a novel core-shell structure evolution mechanism of MgSi<sub>2</sub>Y<sub>2</sub>//Al<sub>4</sub>MgY//Mg<sub>2</sub>Si was proposed based on experimental observation and first principles calculations, revealing MgSi<sub>2</sub>Y<sub>2</sub> as the core for the heterogeneous nucleation of Mg<sub>2</sub>Si.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"138 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143797905","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}
引用次数: 0
AZ31 magnesium alloy sheet with high ductility and low anisotropy achieved by a novel asymmetrical angular rolling process 采用一种新颖的不对称角轧制工艺制备了具有高延展性和低各向异性的AZ31镁合金板材
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-05 DOI: 10.1016/j.jma.2025.03.009
Chenze Wang, Zan Liu, Zhihui Cai, Lifang Pan, Guangming Liu, Lifeng Ma
{"title":"AZ31 magnesium alloy sheet with high ductility and low anisotropy achieved by a novel asymmetrical angular rolling process","authors":"Chenze Wang, Zan Liu, Zhihui Cai, Lifang Pan, Guangming Liu, Lifeng Ma","doi":"10.1016/j.jma.2025.03.009","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.009","url":null,"abstract":"The low ductility and strong mechanical anisotropy of wrought magnesium alloys have hindered their further processing and application. In this study, AZ31 magnesium alloy sheet was prepared by a new asymmetrical angular rolling (AAR) process, compared with conventional symmetrical rolling (SR) process and asymmetrical rolling (ASR) process. The effects of three rolling processes on the microstructure, texture and mechanical properties of the alloy sheets were systematically studied. The results show that the AAR sheet exhibits excellent mechanical properties compared to other two rolling processes. It not only achieves the highest ductility of 17.9 %, 17.9 %, and 18.5 % in the three directions, but also has the lowest mechanical anisotropy values for yield strength, ultimate tensile strength and elongation. The AAR process significantly reduces the anisotropy of the material by achieving the smallest average grain size of 4.93 µm and the most homogeneous grain size distribution. Introduced bi-directional asymmetric shear stresses randomizes grain orientation and activates the non-basal slip system, which also significantly reduces the anisotropy. In addition, the tensile twinning mechanism dominates during the AAR process, which contributes to texture weakening and the activation of the non-basal slip system. Through the synergy of these mechanisms, the AAR sheet is characterized by high ductility and low anisotropy.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"63 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784741","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}
引用次数: 0
Quantitatively regulated and recognized dual-precipitates of Mg-5Sn alloy through an improved twinning-aging-detwinning and strengthening mechanisms 通过改进的孪晶-时效-失孪和强化机制,定量调节和识别Mg-5Sn合金的双析出相
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-05 DOI: 10.1016/j.jma.2025.02.030
Ruihao Fu, Ying Zeng, Yangjie Wan, Xiaoying Qian, Shiwei Xu, Dongdi Yin
{"title":"Quantitatively regulated and recognized dual-precipitates of Mg-5Sn alloy through an improved twinning-aging-detwinning and strengthening mechanisms","authors":"Ruihao Fu, Ying Zeng, Yangjie Wan, Xiaoying Qian, Shiwei Xu, Dongdi Yin","doi":"10.1016/j.jma.2025.02.030","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.030","url":null,"abstract":"The orientation of precipitates was regulated by an improved twinning-aging-detwinning (TAD) process in Mg-Sn sheets. A structure with specific proportions of dual-precipitates was regulated, significantly enhancing the material's strength. The formation mechanism of the dual-precipitates was investigated, and the evolution of precipitate orientation was confirmed. A combined SEM, EBSD and TEM method was developed to identify the coupling relationship between complex grain orientation and precipitate orientation. The orientation relationship between precipitates and the matrix could be quantitatively analyzed in the same region. Subsequently, the Orowan model was refined to quantify the strength enhancement effect following the orientation regulation of precipitates. The TAD sample containing dual-precipitates exhibited a 99.1 % increase in TYS, equivalent to an increase of 108 MPa, compared to unregulated samples A. According to Orowan calculations, the theoretical strength increment from the three strengthening mechanisms was 113 MPa, closely matching the experimental increment of 108 MPa. Notably, the materials with a specific proportion of the dual-precipitates showed a substantial increase in strength.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"16 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784743","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}
引用次数: 0
Significant improvement of Jc and flux pinning force of MgB2 by doping NTE-ZrW2O8 particles NTE-ZrW2O8颗粒的掺入显著提高了MgB2的Jc和磁钉力
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-03 DOI: 10.1016/j.jma.2025.02.029
Tianqi Weng, Lingkai Yuan, Chuan Ke, Cui Hua Cheng, Yong Zhao
{"title":"Significant improvement of Jc and flux pinning force of MgB2 by doping NTE-ZrW2O8 particles","authors":"Tianqi Weng, Lingkai Yuan, Chuan Ke, Cui Hua Cheng, Yong Zhao","doi":"10.1016/j.jma.2025.02.029","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.029","url":null,"abstract":"Although introducing second phase particles as additional pinning centers is an effective method to improve the current carrying capacity of MgB<sub>2</sub>, the thermal strain caused by second phase particles in MgB<sub>2</sub> and their impact on flux pinning have not received much attention. In this paper, flux pinning behavior of the thermal strain induced by the second phase particles in the MgB<sub>2</sub> bulk materials was studied by doping ZrW<sub>2</sub>O<sub>8</sub> particles which have negative thermal expansion (NTE) characteristics. Due to the significant difference in thermal expansion characters between ZrW<sub>2</sub>O<sub>8</sub> and MgB<sub>2</sub>, drastic thermal strain was induced in the lattice of MgB<sub>2</sub> by doping the NTE-ZrW<sub>2</sub>O<sub>8</sub> particles. These strains work as additional flux pinning centers and significantly enhance the irreversibility field, <em>H</em><sub>irr</sub>, and critical current density, <em>J</em><sub>c</sub>, of the MgB<sub>2</sub>. Taking <em>J</em><sub>c</sub> as an example, at 4.2 K and 5 T, its <em>J</em><sub>c</sub> value reaches 4.1 × 10<sup>4</sup> A/cm<sup>2</sup>, which is a 105 % performance improvement compared to the 2.0 × 10<sup>4</sup> A/cm<sup>2</sup> of the pure MgB<sub>2</sub> sample W-0; at 20 K and 2 T, its <em>J</em><sub>c</sub> also reaches 1.3 × 10<sup>5</sup> A/cm<sup>2</sup>, which is 1.78 times of the 7.3 × 10<sup>4</sup> A/cm<sup>2</sup> for the pure MgB<sub>2</sub> sample under the same conditions. It is interesting that doping ZrW<sub>2</sub>O<sub>8</sub> does not significantly change the scaling behavior of the pinning force, indicating that the lattice strain work like surficial pinning center, while the point defect pinning center initiated by ZrW<sub>2</sub>O<sub>8</sub> particles themselves may only contribute to the high field region, causing the peak in the pinning force scaling curve to shift towards higher fields.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"8 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766436","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}
引用次数: 0
Structure-activity relationship on tensile properties under DRX and slip system activity of U-CVCDEed AZ31 magnesium alloy AZ31镁合金在DRX作用下拉伸性能及滑移体系活性的构效关系
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-02 DOI: 10.1016/j.jma.2025.03.010
Qiang Liu, Feng Li, Fu Wei Kang, Hai Bo Wang, Shun Luo
{"title":"Structure-activity relationship on tensile properties under DRX and slip system activity of U-CVCDEed AZ31 magnesium alloy","authors":"Qiang Liu, Feng Li, Fu Wei Kang, Hai Bo Wang, Shun Luo","doi":"10.1016/j.jma.2025.03.010","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.010","url":null,"abstract":"Given the limitations of traditional hot extrusion methods in improving the microstructure and mechanical properties of magnesium(Mg) alloys, this paper attempts to treat AZ31 Mg alloy billet by pre-upsetting continuous variable cross-section direct extrusion (U-CVCDE). The effects of dynamic recrystallization behavior and slip system activity on texture evolution and mechanical properties of CVCDE Mg alloys with different pre-upsetting amounts were systematically analyzed. The results indicate that the introduction of the pre-upsetting process promotes dynamic recrystallization during the CVCDE process. The recrystallization proportion shows a trend of first rising and then decreasing with the increase of the pre-upsetting amount. Among them, the proportion of recrystallization grains in the U2-CVCDE-formed structural parts is as high as 88.3 %. The average grain sizes of U1-CVCDE, U2-CVCDE, and U3-CVCDE were 6.01 µm, 4.90 µm, and 10.45 µm, respectively. In addition, following U-CVCDE, the pyramidal slip of each forming component consistently maintains a high level of activation and opening and dominates, making more grains deflect in the axial extrusion direction of C to varying degrees, which is conducive to the uniform distribution of stress in more grains during plastic deformation. The synergistic effect of dynamic recrystallization behavior and the high activity of the pyramidal slip system significantly weakened the (0001) basal texture strength, and the maximum basal texture strength showed a gradually decreasing trend, among which the base surface texture strength of U3-CVCDE formed parts was only 9.9. The U-CVCDE process is employed to achieve deep modification of Mg alloy, and excellent comprehensive mechanical properties are obtained; among them, the yield and tensile strength of U2-CVCDE are as high as 243.4 MPa and 317.5 MPa, respectively, and the elongation after breaking is up to 21.3 %. This study introduces a practical new idea for investigating the extrusion forming technology of high-performance Mg alloys.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"25 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758163","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}
引用次数: 0
Low-energy and accelerated hydrogen release from MgH2–5 wt% NaTiOxH catalyzed hydrogen storage reactor by graphite responsive microwave 石墨响应微波在MgH2-5 wt% NaTiOxH催化储氢反应器中低能加速释氢
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-02 DOI: 10.1016/j.jma.2025.03.002
Bofei Wang, Zhen Wu, Honghao Liu, Fusheng Yang, Zaoxiao Zhang, Jing Yao, Qian Li, Hujun Cao, Bo Li
{"title":"Low-energy and accelerated hydrogen release from MgH2–5 wt% NaTiOxH catalyzed hydrogen storage reactor by graphite responsive microwave","authors":"Bofei Wang, Zhen Wu, Honghao Liu, Fusheng Yang, Zaoxiao Zhang, Jing Yao, Qian Li, Hujun Cao, Bo Li","doi":"10.1016/j.jma.2025.03.002","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.002","url":null,"abstract":"Owing to high thermal stability and large reaction enthalpy, MgH<sub>2</sub> has high reaction temperatures and sluggish reaction kinetics in the dehydrogenation process, which consumes lots of energy. To achieve hydrogen release with low energy consumption, accelerated reaction rate, and high heating uniformity, this paper proposes a novel method of graphite responsive microwave-assisted thermal management with NaTiO<em><sub>x</sub></em>H catalyst. A multi-physics model of the 5 wt% NaTiO<em><sub>x</sub></em>H catalyzed MgH<sub>2</sub> reactor integrated with a microwave generator is developed to investigate the reaction, heat and mass transfer process of hydrogen release. It is found that the graphite responsive microwave heating method could improve the temperature uniformity of reaction bed, reduce the energy consumption by at least 10.71% and save the hydrogen release time by 53.49% compared with the traditional electric heating method. Moreover, the hydrogen desorption thermodynamics could be improved with the increase of microwave power. The hydrogen release time is shortened by 19.55% with the increase of 20 W microwave power. Meanwhile, it is also concluded that the microwave excitation frequency of 2.1 GHz and the graphite content of 2 wt% have better heating performance. Therefore, it can be verified that the graphite responsive microwave heating helps to low-energy and accelerated hydrogen release from MgH<sub>2</sub> hydrogen storage reactor.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"75 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758162","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}
引用次数: 0
Effect of Al2O3 nano sol content in Ni-Al2O3 composite coating on intermetallic compound formation and properties of Mg/Al soldered joints Ni-Al2O3 复合涂层中 Al2O3 纳米溶胶含量对 Mg/Al 焊点金属间化合物形成和性能的影响
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.06.025
Yingzong Liu, Yuanxing Li, Jinzhe Cui, Zongtao Zhu, Hui Chen
{"title":"Effect of Al2O3 nano sol content in Ni-Al2O3 composite coating on intermetallic compound formation and properties of Mg/Al soldered joints","authors":"Yingzong Liu,&nbsp;Yuanxing Li,&nbsp;Jinzhe Cui,&nbsp;Zongtao Zhu,&nbsp;Hui Chen","doi":"10.1016/j.jma.2024.06.025","DOIUrl":"10.1016/j.jma.2024.06.025","url":null,"abstract":"<div><div>Combining Mg and Al dissimilar metals further reduces structural weight, but the formation of intermetallic compounds (IMCs) affects Al/Mg joint properties. To prevent IMCs, a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating was pre-plated on the Mg alloy substrate, and then Sn3.0Ag0.5Cu (SAC 305) solder was utilized to facilitate the joining of AZ31 Mg/6061 Al through ultrasonic-assisted soldering. We investigated the impact of Al<sub>2</sub>O<sub>3</sub> nano sol content in the coating on microstructure evolution, IMCs formation, and mechanical properties. Results indicated that the Ni-Al<sub>2</sub>O<sub>3</sub> composite coating effectively suppressed the Mg-Sn reaction, thereby preventing the formation of Mg<sub>2</sub>Sn IMC and significantly enhancing joint strength. In joints with a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating containing 50 mL/L Al<sub>2</sub>O<sub>3</sub> nano sol, no Mg<sub>2</sub>Sn IMC was detected after 50 min of holding at 260 °C, achieving a maximum shear strength of approximately 67.2 MPa. Increasing the Al<sub>2</sub>O<sub>3</sub> concentration further expanded the soldering process window. For the joint with Ni-Al<sub>2</sub>O<sub>3</sub> (100 mL/L Al<sub>2</sub>O<sub>3</sub> nano sol) composite coating held at 260 °C for 70 min, the coating was dissolved to a thickness of about 5.8 µm, but no Mg<sub>2</sub>Sn IMC was observed. The Ni-based solid solution formed near the coating/solder interface was strengthened, leading to fractures occurring within the SAC solder, and the maximum shear strength further increased to 73.9 MPa. The strengthening mechanism of the joints facilitated by using the Ni-Al<sub>2</sub>O<sub>3</sub> composite coating was revealed by comparing with pure Ni-assisted joints. Therefore, employing a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating as a barrier layer represents a promising strategy for inhibiting IMC formation during the joining of dissimilar metals.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1784-1798"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141700283","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}
引用次数: 0
A comprehensive overview in improving corrosion resistance of Mg alloys: Enhancing protective coatings with plasma electrolytic oxidation and superhydrophobic coatings 提高镁合金耐蚀性的综合综述:用等离子体电解氧化和超疏水涂层增强保护涂层
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.023
Arash Fattah-alhosseini, Haniye Salimi, Minoo Karbasi
{"title":"A comprehensive overview in improving corrosion resistance of Mg alloys: Enhancing protective coatings with plasma electrolytic oxidation and superhydrophobic coatings","authors":"Arash Fattah-alhosseini,&nbsp;Haniye Salimi,&nbsp;Minoo Karbasi","doi":"10.1016/j.jma.2025.02.023","DOIUrl":"10.1016/j.jma.2025.02.023","url":null,"abstract":"<div><div>The corrosion resistance of magnesium alloys is a significant concern in industries seeking to use these materials for lightweight structures. Plasma electrolytic oxidation (PEO) is a process that forms a ceramic oxide film on Mg alloy surfaces, effectively enhancing their corrosion performance in the short term. In this regard, optimizing PEO process parameters is crucial for creating a stable oxide layer. An improved level of corrosion resistance is ensured by applying superhydrophobic coating (SHC) on top of the PEO layer to prevent moisture infiltration, creating air pockets on the surface. Various methods are employed to fabricate SHC on Mg alloys, including techniques like electrophoretic deposition (EPD), Hydrothermal (HT), dip, and spray coating. The synergistic combination of PEO and SHC coatings has demonstrated encouraging outcomes in enhancing the corrosion performance of Mg alloys. This study offers an extensive overview of recent progress in the preparation, characterization, and corrosion behavior of Mg alloys by employing PEO coatings and SHC treatment processes.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1386-1404"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713193","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}
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