MetalMat Pub Date : 2026-09-11 Epub Date: 2026-05-20 DOI: 10.1002/metm.70040

Akilakpa Sawyerr, Eric Kotei T. Addison, Martin Owusu-Mensah, Abdul Jaleel Mohammed, Daolun Chen

{"title":"Influence of Strain Rate on the Strain Hardening Behavior of a Lean Duplex Stainless Steel","authors":"Akilakpa Sawyerr, Eric Kotei T. Addison, Martin Owusu-Mensah, Abdul Jaleel Mohammed, Daolun Chen","doi":"10.1002/metm.70040","DOIUrl":"https://doi.org/10.1002/metm.70040","url":null,"abstract":"The aim of this study was to examine how strain rate influences the compressive strain-hardening behavior of a lean duplex stainless steel LDX 2101. Microstructural analysis using electron backscatter diffraction (EBSD) revealed a strain-induced austenite-to-martensite transformation. The yield strength of the alloy increased with increasing strain rate, whereas its hardening capacity showed a slight decrease. This trend suggests that at higher strain rates, dislocation slip was not the dominant deformation mode in the FCC austenite phase of LDX 2101. Despite these changes, the strain-hardening exponents determined from the four constitutive models of Ludwik, Hollomon, Swift, and Afrin et al. remained largely insensitive to strain rate. Strain-rate sensitivity was assessed using both the common power-law method and Lindholm approach, with the latter providing a more sensitive characterization due to its consistently higher sensitivity values. Additionally, LDX 2101 exhibited Stage III hardening followed by Stage IV hardening, with the highest strain hardening rate observed at the lowest applied strain rate.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable Metal Recovery From E-Waste: Exploring Greener Leachates in Hydrometallurgical Processes 从电子废物中可持续回收金属：探索湿法冶金过程中更环保的渗滤液

MetalMat Pub Date : 2026-09-11 Epub Date: 2026-05-22 DOI: 10.1002/metm.70041

Shassatha Paul Saikat, Nazim Uddin, Md. Kawsar, Samina Ahmed, Md. Sahadat Hossain

{"title":"Sustainable Metal Recovery From E-Waste: Exploring Greener Leachates in Hydrometallurgical Processes","authors":"Shassatha Paul Saikat, Nazim Uddin, Md. Kawsar, Samina Ahmed, Md. Sahadat Hossain","doi":"10.1002/metm.70041","DOIUrl":"https://doi.org/10.1002/metm.70041","url":null,"abstract":"The accumulation of electronic waste (e-waste) poses environmental hazards and leads to the loss of valuable metals such as gold, silver, copper, and rare earth elements. Conventional hydrometallurgical leachates, including cyanide, thiosulfate, and aqua regia, are effective but highly toxic and generate significant secondary waste. This review examines greener alternatives—ionic liquids (ILs), supercritical fluids (SCFs), and deep eutectic solvents (DESs)—evaluating their leaching efficiency, operational conditions, and environmental performance. Although these methods offer advantages such as tunable properties, biodegradability, and reduced emissions, challenges remain in toxicity control, recovery efficiency, and commercial scalability. The review highlights knowledge gaps, emphasizes the need for process optimization, and discusses regulatory and infrastructural considerations for industrial adoption. Overall, it provides a comparative assessment to support the development of sustainable and economically viable e-waste recycling technologies.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 on Processing Control Strategy for Electrochemical Additive Manufacturing 电化学增材制造工艺控制策略研究进展

MetalMat Pub Date : 2026-09-11 Epub Date: 2026-05-25 DOI: 10.1002/metm.70043

Xin Li, Yu Xie, Wangping Wu

{"title":"Review on Processing Control Strategy for Electrochemical Additive Manufacturing","authors":"Xin Li, Yu Xie, Wangping Wu","doi":"10.1002/metm.70043","DOIUrl":"https://doi.org/10.1002/metm.70043","url":null,"abstract":"Electrochemical Additive Manufacturing (ECAM) has emerged as a promising non-thermal approach for the direct fabrication of three-dimensional metallic microstructures under ambient conditions. Compared with thermally driven metal additive manufacturing processes, ECAM offers several distinctive advantages, including low energy consumption, reduced thermal stress, high material utilization efficiency, and flexible regulation of composition and microstructure. However, the printing behavior in ECAM is highly sensitive to process conditions, and the fabrication of stable, high-quality structures remains a major challenge. This review systematically summarizes recent progress in processing control strategies for ECAM, with particular emphasis on three key regulation dimensions: current monitoring and closed-loop control, temperature regulation, and electrolyte flow/nozzle design. The respective roles of these parameters in governing electrochemical kinetics, mass transport, deposition stability, and geometric fidelity are discussed. Special attention is given to their intrinsic coupling, since current/potential, temperature, and electrolyte flow interact nonlinearly within the localized reaction zone and jointly determine the final structural quality and manufacturing reliability. In addition, recent advances in image-assisted monitoring, in situ signal analysis, and intelligent data-driven control are reviewed as emerging pathways toward adaptive and autonomous ECAM systems. This review provides a structured understanding of current process control strategies strategies and offers perspectives for the future development of stable, precise, and scalable electrochemical additive manufacturing.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cover 封面

MetalMat Pub Date : 2026-09-11 DOI: 10.1002/metm.70047

引用次数: 0

Application of Magnesium Metal as Anode in Batteries 金属镁作为电池负极的应用

MetalMat Pub Date : 2026-09-11 Epub Date: 2026-05-30 DOI: 10.1002/metm.70042

Yuanjie Zhang, Dichang Guan, Guorong Hu, Zhongdong Peng, Yanbing Cao, Ke Du

{"title":"Application of Magnesium Metal as Anode in Batteries","authors":"Yuanjie Zhang, Dichang Guan, Guorong Hu, Zhongdong Peng, Yanbing Cao, Ke Du","doi":"10.1002/metm.70042","DOIUrl":"https://doi.org/10.1002/metm.70042","url":null,"abstract":"Magnesium metal is a highly attractive anode candidate for next-generation metal batteries owing to its intrinsically low propensity for dendrite formation, high volumetric capacity (3833 <math></math>), earth-abundant reserves, cost-effectiveness, and environmental benignity. Beyond conventional magnesium-ion batteries, the unique properties of magnesium metal have also stimulated its application in emerging systems such as aqueous magnesium-ion batteries, magnesium–lithium hybrid batteries, and magnesium primary batteries. However, the practical implementation of magnesium metal anodes is severely hindered by persistent surface passivation, along with challenges such as volume change and uneven deposition/stripping during cycling. To overcome these limitations, various strategies have been proposed, including structural design of magnesium metal anodes, the development of alloy-type anodes, electrolyte engineering, and the construction of artificial solid electrolyte interphases (SEI). This review provides a concise overview of the working principles and key components of various magnesium-based battery systems, with a particular focus on the challenges associated with magnesium anodes and the corresponding mitigation strategies. It aims to offer insights to guide future research and accelerate the practical development of magnesium metal batteries.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148943702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances and Current Progress of Dopant Engineering on All-Inorganic Halide Perovskites Toward High-Performance Scintillating Materials 面向高性能闪烁材料的全无机卤化物钙钛矿掺杂工程研究进展

MetalMat Pub Date : 2026-06-11 Epub Date: 2026-03-26 DOI: 10.1002/metm.70037

Galfin Anderias Adu, Viona Maria Djojo, Livia Janice Widiapradja, Noor Nisa Fayyaza, Lina Jaya Diguna, Muhammad Danang Birowosuto, Arramel Arramel

{"title":"Advances and Current Progress of Dopant Engineering on All-Inorganic Halide Perovskites Toward High-Performance Scintillating Materials","authors":"Galfin Anderias Adu, Viona Maria Djojo, Livia Janice Widiapradja, Noor Nisa Fayyaza, Lina Jaya Diguna, Muhammad Danang Birowosuto, Arramel Arramel","doi":"10.1002/metm.70037","DOIUrl":"https://doi.org/10.1002/metm.70037","url":null,"abstract":"In recent years, metal halide perovskites have attracted significant interests due to their remarkable optoelectronic and scintillation properties, as well as the benefits of facile and low-cost processing. All-inorganic perovskites (AIPs) exhibit superior thermal stability and strong radiation absorption compared with hybrid organic–inorganic perovskites, positioning them as promising candidates for next-generation scintillators. However, the presence of lead in most perovskite materials poses significant toxicity concerns, driving intensive efforts toward the development of nontoxic, lead-free AIP alternatives. This review briefly outlines the recent developments of lead-free AIPs, working principle, different synthesis methods, and scintillation properties associated with self-trapped exciton (STE). We highlight dopant engineering strategy to favor the formation and efficient radiative recombination of STEs in low-dimensional AIPs. Finally, we provide the future development direction to pave the way for high-performance, next-generation lead-free AIP scintillators.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148221962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Truncated Octahedral PtCu Alloy Nanoparticles for Efficient Methanol Electrooxidation 截断八面体PtCu合金纳米颗粒用于高效甲醇电氧化

MetalMat Pub Date : 2026-06-11 Epub Date: 2026-04-14 DOI: 10.1002/metm.70038

Mengfei Liu, Haoran Chen, Jiahao Zheng, Yingying Wang, Yanyun Ma, Yiqun Zheng

{"title":"Truncated Octahedral PtCu Alloy Nanoparticles for Efficient Methanol Electrooxidation","authors":"Mengfei Liu, Haoran Chen, Jiahao Zheng, Yingying Wang, Yanyun Ma, Yiqun Zheng","doi":"10.1002/metm.70038","DOIUrl":"https://doi.org/10.1002/metm.70038","url":null,"abstract":"The pursuit of high-performance platinum-based electrocatalysts for the methanol oxidation reaction (MOR) drives the development of nanostructures with precise architectural control. This work demonstrates a morphology-controlled synthesis of platinum–copper nano-truncated octahedra (PtCu NTOs). Comprehensive structural characterization by TEM, HRTEM, and EDX–STEM confirms the uniform octahedral morphology and alloy formation. When evaluated for the MOR in alkaline media, the optimized PtCu NTOs exhibit a 4.8-fold and 2.3-fold enhancement in specific activity (13.02 vs. 2.71 mA cm−2) and mass activity (1750.67 vs. 746.33 mA mg−1), respectively, compared to a commercial Pt/C benchmark. Density functional theory (DFT) simulations is performed to reveal that Cu-alloyed Pt surfaces lower the activation barrier for the rate-determining C–H bond cleavage in methanol oxidation, with the enhanced activity correlated to an upshift in the surface Pt d-band center. Our findings provide a feasible strategy for engineering faceted, alloyed Pt-based nano-architectures, guiding the rational design of advanced electrocatalysts.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148221918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in the Laser-Based Fabrication and Applications of High-Entropy Alloy Nanoparticles 激光制备高熵合金纳米颗粒及其应用研究进展

MetalMat Pub Date : 2026-06-11 Epub Date: 2026-03-21 DOI: 10.1002/metm.70036

Bibek Kumar Singh, Rajesh Rawat, Archana Tiwari, Venugopal Rao Soma, Ajay Tripathi

{"title":"Recent Advances in the Laser-Based Fabrication and Applications of High-Entropy Alloy Nanoparticles","authors":"Bibek Kumar Singh, Rajesh Rawat, Archana Tiwari, Venugopal Rao Soma, Ajay Tripathi","doi":"10.1002/metm.70036","DOIUrl":"https://doi.org/10.1002/metm.70036","url":null,"abstract":"High-entropy alloys (HEAs) represent a shift in materials science, offering unprecedented compositional and structural flexibility for developing multifunctional nanomaterials. This review comprehensively examines recent advances in laser-based fabrication techniques and applications of HEA-NPs. Unlike conventional synthesis methods, pulsed laser ablation in liquids (PLAL), laser fragmentation in liquids (LFL), and laser melting in liquids (LML) offer versatile, green, and scalable approaches for producing compositionally homogeneous, ligand-free NPs with tunable size, phase structure, and morphology. Critical laser parameters, including pulse duration, fluence, wavelength, beam geometry, and scanning speed, enable precise control over NPs properties, allowing synthesis of both crystalline and metastable amorphous phases. The surrounding medium, target preparation, and substrate selection further modulate NPs structure and elemental distribution. As-synthesized and post-processed HEA NPs demonstrate exceptional promise in energy related applications, particularly for oxygen evolution and reduction reactions in water splitting, fuel cells, and battery cathodes. Laser induced surface activation further enhances catalytic performance through controlled modification of surface charge and active site densities. This review presents the recent developments in HEA NP synthesis, characterization, and applications, highlighting how laser-based approaches enable the rational design of next-generation nanomaterials for sustainable energy conversion, catalysis, and advanced technologies.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148221861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Milling and Wire Electric Discharge Machining on Recast Layer Formation and Tensile Behavior of Metallic Materials 铣削和电火花加工对金属材料重铸层形成和拉伸性能的影响

MetalMat Pub Date : 2026-06-11 Epub Date: 2026-05-08 DOI: 10.1002/metm.70039

Animesh Kumar Basak, Alokesh Pramanik, Afifah Zakiyyah Juri, Nachimuthu Radhika, T. Mohanraj

{"title":"Effect of Milling and Wire Electric Discharge Machining on Recast Layer Formation and Tensile Behavior of Metallic Materials","authors":"Animesh Kumar Basak, Alokesh Pramanik, Afifah Zakiyyah Juri, Nachimuthu Radhika, T. Mohanraj","doi":"10.1002/metm.70039","DOIUrl":"https://doi.org/10.1002/metm.70039","url":null,"abstract":"Machining of materials is an invaluable technique to give specific shapes and dimensions of desired materials. Different machining processes give rise to different surface characteristics that include not only surface roughness but also specific surface morphology, such as the recast layer. This research study focuses on the effect of two different machining techniques: (i) milling and (ii) wire electrical discharge machining (wire–EDM) on the tensile behavior, surface integrity, and fractography of aluminum (Al-6061), Al-based metal matrix composites (Al-MMC with 10% SiC), duplex stainless steel (DSS-2205), and titanium (Ti-6Al-4V). The appearance of the surface produced from wire–EDM had similar features, regardless of material, but the machining marks were visible in different degrees on the considered workpiece materials. Recast layer thickness depends on materials' property, where no recast layer was noted for Al and maximum thickness was noted in DSS-2205. For all of the materials investigated, the surface roughness of the specimens fabricated by wire–EDM was always higher than that of milling, although it implicates negligible difference in the tensile strength of the materials except Ti6Al-4V, where the stiffness increased, and ductility reduced significantly, due to wire–EDM. The presence and extent of recast for a given material implied a profound effect in both tensile strength and percentage elongation. The fracture mechanism was ductile all through the fracture surface, except in the re-cast layer region.","PeriodicalId":100919,"journal":{"name":"MetalMat","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/metm.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148221838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cover 封面

MetalMat Pub Date : 2026-06-11 DOI: 10.1002/metm.70045

引用次数: 0

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