IF 2.3 4区材料科学

JOM Pub Date : 2026-01-21 DOI: 10.1007/s11837-025-08106-3

Michael Alder, Anjali Sankar, Jun Cao, Xin Pang, Olga Palazhchenko

{"title":"Simulated Ex-Service SFR Fuel Cladding for Characterization of Degradation Under DGR Groundwater Conditions","authors":"Michael Alder, Anjali Sankar, Jun Cao, Xin Pang, Olga Palazhchenko","doi":"10.1007/s11837-025-08106-3","DOIUrl":"10.1007/s11837-025-08106-3","url":null,"abstract":"<div><p>Sodium fast reactors (SFRs) use metallic fuel, bonded to the fuel cladding material with liquid sodium metal. HT9, a ferritic–martensitic stainless steel, has been used as cladding material in test SFRs, where fuel-cladding chemical interaction (FCCI) was shown to be the life-limiting factor. In this work, FCCI has been induced in HT9 via diffusion couple testing at 650°C to simulate the ex-service cladding condition, representative of SFR operating conditions and the expected fission products. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to characterize the thickness and chemical composition of the diffusion layer between non-heat-treated HT9 and Nd in the first round of trials, as Nd is the most abundant lanthanide fission product. Vickers microhardness testing was performed on post-diffusion couple samples to compare the hardness of observed regions to post-irradiation examination (PIE) of HT9 fuel cladding that had undergone FCCI in test SFRs. Analogous testing will be carried out with heat-treated HT9 and a fabricated lanthanide alloy in subsequent trials. The resulting HT9–lanthanide coupons will be used for further cladding degradation experiments incorporating simulated deep geological repository (DGR) groundwater in a worst-case scenario DGR flooding event.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 4","pages":"3240 - 3251"},"PeriodicalIF":2.3,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effects of Rare-Earth Element Yttrium (Y) on the Hot Corrosion of AlCrFeNi Medium-Entropy Alloy in NaCl-KCl Molten Salt at 750°C 稀土元素钇(Y)对AlCrFeNi中熵合金在NaCl-KCl熔盐中750℃热腐蚀的影响

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-21 DOI: 10.1007/s11837-025-08107-2

Zhen Xu, Guijiang Diao, Kaifan Lin, Xin Pang, Jessica Poupore, Wengang Chen, Daolun Chen, D. Y. Li

{"title":"Effects of Rare-Earth Element Yttrium (Y) on the Hot Corrosion of AlCrFeNi Medium-Entropy Alloy in NaCl-KCl Molten Salt at 750°C","authors":"Zhen Xu, Guijiang Diao, Kaifan Lin, Xin Pang, Jessica Poupore, Wengang Chen, Daolun Chen, D. Y. Li","doi":"10.1007/s11837-025-08107-2","DOIUrl":"10.1007/s11837-025-08107-2","url":null,"abstract":"<div><p>AlCrFeNi medium-entropy alloys (MEA) have attracted considerable attention for high-temperature applications owing to their modifiable mechanical properties and excellent corrosion resistance attributed to their protective oxide scales. A small amount of rare-earth element yttrium (Y) can further improve the resistance of alloys to oxidation/corrosion. In this study, 1 wt.% Y was added to the AlCrFeNi alloy via arc melting, and the effects of the Y addition on the microstructure, mechanical properties, and hot corrosion of the MEA in molten NaCl-KCl salt at 750°C were investigated. To better evaluate the role of Y in enhancing the hot-corrosion resistance, stainless-steel 316 (SS316) was also tested for comparison. It has been demonstrated that the Y addition markedly enhances the mechanical strength and hot-corrosion resistance of the alloy in both air and argon atmospheres. In air, Y improves oxide scale adhesion, and reduces spallation and large void formation in the oxide scale. While, in argon, Y suppresses the outward diffusion of Cr and Al, reduces the formation of volatile chlorides, and inhibits salt penetration into the substrate. This study highlights the beneficial role of Y in improving the hot-corrosion resistance of both AlCrFeNi MEAs and SS316 for applications in hot corrosive environments and at elevated temperatures.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 4","pages":"3210 - 3227"},"PeriodicalIF":2.3,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Designing High-Strength Cermets with Ru Addition: A Molecular Dynamics Strategy Guided by Interfacial Segregation and Solid-Solution Effects 设计含Ru的高强度陶瓷：基于界面偏析和固溶效应的分子动力学策略

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-20 DOI: 10.1007/s11837-025-08096-2

Lei Luo, Ying Wang, Jingmao Li, Yuting Fang, Cheng Yin, Naitao Geng, Youping Zheng, Haixu Qin

{"title":"Designing High-Strength Cermets with Ru Addition: A Molecular Dynamics Strategy Guided by Interfacial Segregation and Solid-Solution Effects","authors":"Lei Luo, Ying Wang, Jingmao Li, Yuting Fang, Cheng Yin, Naitao Geng, Youping Zheng, Haixu Qin","doi":"10.1007/s11837-025-08096-2","DOIUrl":"10.1007/s11837-025-08096-2","url":null,"abstract":"<div><p>The atomistic-scale mechanisms by which ruthenium (Ru) enhances the mechanical properties of WC-Co cermets have remained unclear, hindering rational material design. This study employs molecular dynamics simulations to decipher the strengthening effects of Ru, explicitly quantifying the contributions of solid-solution versus interfacial segregation. We reveal that grain boundary (GB) segregation is the dominant mechanism, yielding a remarkable 59.35% increase in yield strength at <i>c</i> = 0.03, far outperforming the minor solid solution strengthening from Ru in the Co binder (5.44% at <i>c</i> = 0.04). The interaction between these mechanisms is quantified using a novel degree-of-excess (DOE) parameterization strategy, with optimized strength (29.8 GPa) achieved at <i>c</i> = 0.03 and DOEsolu-seg = 0.25. This signifies a microstructure dominated by potent GB segregation with a secondary solid-solution contribution. Our work provides fundamental mechanistic insights into, and a practical strategy for developing, ultra-strong nanocrystalline cermets through targeted solute distribution control, establishing GB engineering as the key principle for maximizing performance.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2633 - 2645"},"PeriodicalIF":2.3,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Influence of Synchronized Pressure Rollers on Crack Suppression Mechanism and Properties of Ni60-WC Laser Cladding Layer 同步压辊对Ni60-WC激光熔覆层裂纹抑制机理及性能的影响

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-16 DOI: 10.1007/s11837-025-08104-5

Haifeng Zhang, Huaichen Guo, Xiaoping Hu, Jiyuan Tao, Wenhan She, Changlong Zhao

{"title":"Influence of Synchronized Pressure Rollers on Crack Suppression Mechanism and Properties of Ni60-WC Laser Cladding Layer","authors":"Haifeng Zhang, Huaichen Guo, Xiaoping Hu, Jiyuan Tao, Wenhan She, Changlong Zhao","doi":"10.1007/s11837-025-08104-5","DOIUrl":"10.1007/s11837-025-08104-5","url":null,"abstract":"<div><p>The present study constitutes a systematic investigation into the impact of a synchronized pressure roller treatment on the Ni60-WC laser-melted cladding crack-suppression mechanism and properties. The investigation involves the introduction of a synchronized pressure roller process, with the objective of elucidating its influence on these parameters. The experiments were conducted using 45# steel as the supporting material and Ni60 containing 25 wt.% WC alloy powder. The composition, microstructure, microhardness, and wear characteristics of the melt-coated layer were analyzed by optimizing the laser power parameters (2400 W) and roller load (0–6 kg). The findings demonstrate that the use of the synchronized printing roller significantly reduces the crack susceptibility of the fused cladding. Furthermore, XRD analysis indicates that the primary microstructures of the fused cladding include γ-Ni(Fe), M23C6, Ni3Fe, WC, and W2C. The microhardness exhibited a decrease in response to an increase in loading force; the hardness at 6-kg loading force decreased by 20.91% in comparison with that of the conventional process. However, the abrasion resistance was improved by 34.94% (the abrasion mark cross-sectional area decreased from 5093.94 μm<sup>2</sup> to 3313.63 (μm<sup>2</sup>).</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 4","pages":"3296 - 3310"},"PeriodicalIF":2.3,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Kinetics of Laterite Ore Reduction Using Low-Rank Coal and Palm Oil Empty Fruit Bunch (EFB) Biochar 低阶煤与棕榈油空果串（EFB）生物炭还原红土矿动力学研究

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-14 DOI: 10.1007/s11837-025-08068-6

Moh Fahrurrozi, Himawan Tri Bayu Murtri Petrus, Ananda Rahma Anjani, Mahfirotul Khikmah, Gyan Prameswara, Yosef Prihanto, Ade Kurniawan

{"title":"Kinetics of Laterite Ore Reduction Using Low-Rank Coal and Palm Oil Empty Fruit Bunch (EFB) Biochar","authors":"Moh Fahrurrozi, Himawan Tri Bayu Murtri Petrus, Ananda Rahma Anjani, Mahfirotul Khikmah, Gyan Prameswara, Yosef Prihanto, Ade Kurniawan","doi":"10.1007/s11837-025-08068-6","DOIUrl":"10.1007/s11837-025-08068-6","url":null,"abstract":"<div><p>This study evaluates the reduction kinetics of limonitic laterite using palm oil empty fruit bunch (EFB) biochar and coal–EFB blends under pelletized static-gas conditions. Reduction roasting was conducted at 600–1000°C with EFB biochar-to-laterite ratios of 1:2–1:4 and coal:EFB:laterite ratios of 1:1:4–1:1:8. Thermogravimetric reduction data were fitted using linearized kinetic models, yielding apparent activation energies of 4.3–22.3 kJ mol<sup>−1</sup>, which is consistent with diffusion-controlled gas–solid reduction. Qualitative XRD confirmed sequential phase evolution compatible with gravimetric trends, and coal–EFB blends produced intermediate activation energies under identical conditions. These findings indicate that EFB biochar can serve as a potential renewable carbon source to partially substitute fossil reductants in laterite processing; however, this interpretation remains limited to laboratory-scale evidence, and further validation is needed before process-level application.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2503 - 2515"},"PeriodicalIF":2.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Friction Stir Processing-Induced Microstructural Banding in Laser Powder Bed Fused AlSi10Mg 搅拌摩擦加工诱发激光粉末床熔合AlSi10Mg微结构带化

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-14 DOI: 10.1007/s11837-025-08048-w

Mahya Ghaffari, Yahya Aghayar, Alireza Vahedi Nemani, Parisa Fathi, Khashayar Morshedbehbahani, Mehran Rafieazad, Mohsen Mohammadi, Adrian Gerlich, Amir Hadadzadeh, Ali Nasiri

{"title":"Friction Stir Processing-Induced Microstructural Banding in Laser Powder Bed Fused AlSi10Mg","authors":"Mahya Ghaffari, Yahya Aghayar, Alireza Vahedi Nemani, Parisa Fathi, Khashayar Morshedbehbahani, Mehran Rafieazad, Mohsen Mohammadi, Adrian Gerlich, Amir Hadadzadeh, Ali Nasiri","doi":"10.1007/s11837-025-08048-w","DOIUrl":"10.1007/s11837-025-08048-w","url":null,"abstract":"<div><p>This study investigates the microstructural evolution and mechanical response of laser powder bed fused (L-PBF) AlSi10Mg alloy subjected to single- and multi-pass friction stir processing (FSP), focusing on the formation of concentric banded structures (onion rings) within the stir zone. One- and three-pass FSP were performed under identical parameters, and the resulting microstructures were characterized using optical, scanning, and transmission electron microscopy, and electron backscatter diffraction, followed by hardness testing to evaluate mechanical response. Both conditions produced onion ring patterns characterized by periodic variations in silicon particle size, distribution, and subtle texture changes, arising from complex material flow and thermal cycling. One-pass FSP refined the as-printed microstructure into ultrafine equiaxed grains (1.1 ± 0.3 <i>μ</i>m) and fragmented the eutectic Si network, reducing the Si phase area fraction from 17.1% to 8.6%. In contrast, three-pass FSP caused moderate grain coarsening (1.9 ± 0.4 <i>μ</i>m) and an increase in Si phase fraction to 17.0% due to particle coarsening and redistribution. These microstructural transformations resulted in hardness reduction from 101 ± 3 HRE to 64 ± 2 HRE after one-pass, followed by partial recovery to 67 ± 1 HRE after three-pass FSP. The findings reveal that multi-pass FSP can effectively tailor the microstructure and hardness of L-PBF-AlSi10Mg.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 4","pages":"3121 - 3137"},"PeriodicalIF":2.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Toward Net-Zero: Pioneering Materials and Technologies for a Sustainable Built Future 迈向零净：可持续建筑未来的先锋材料和技术

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-14 DOI: 10.1007/s11837-025-08060-0

Yasser Alashker, Abdellatif Selmi, Anwar Ahmed, Zeeshan Ahmad

{"title":"Toward Net-Zero: Pioneering Materials and Technologies for a Sustainable Built Future","authors":"Yasser Alashker, Abdellatif Selmi, Anwar Ahmed, Zeeshan Ahmad","doi":"10.1007/s11837-025-08060-0","DOIUrl":"10.1007/s11837-025-08060-0","url":null,"abstract":"<div><p>The construction industry is a major contributor to global carbon dioxide emissions. Portland cement concrete produces high emissions due to energy-intensive processes and calcination. Zero-carbon concrete is emerging as a sustainable alternative that reduces or eliminates these emissions. This review examines recent developments in zero-carbon concrete using the PRISMA approach. It explores low-carbon binders including fly ash, slag, calcined clays, and limestone that replace cement and lower emissions. The use of recycled aggregates and supplementary cementitious materials further improves sustainability. Advanced production methods such as carbon capture, CO<sub>2</sub> curing, 3D printing, self-healing systems, and nanomaterial integration are discussed for their role in enhancing performance and reducing environmental impact. Comparative analysis shows that zero-carbon concrete can match or surpass conventional concrete in compressive and flexural strength, durability, and workability. Lifecycle assessments indicate that material substitution, waste valorization, and circular economy practices are key to lowering the overall carbon footprint. Economic factors including initial costs and long-term benefits are also evaluated. The review highlights challenges such as limited raw material supply, cost, scalability, and the need for standardized design and testing protocols. Future directions include pilot-scale validation, local adaptation strategies, and integration of sustainability metrics into design standards. Collaborative efforts from researchers, industry, and policymakers are essential to accelerate the adoption of zero-carbon concrete. This study confirms that zero-carbon concrete is a viable pathway toward sustainable construction and can play a central role in achieving net-zero goals.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2437 - 2461"},"PeriodicalIF":2.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Process Optimization of Laser Powder Bed Fusion for Equiatomic CoCrFeMnNi High-Entropy Alloy 等原子CoCrFeMnNi高熵合金激光粉末床熔合工艺优化

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-14 DOI: 10.1007/s11837-025-08077-5

Kun Lin, Aiping Shen, Chong Liu

{"title":"Process Optimization of Laser Powder Bed Fusion for Equiatomic CoCrFeMnNi High-Entropy Alloy","authors":"Kun Lin, Aiping Shen, Chong Liu","doi":"10.1007/s11837-025-08077-5","DOIUrl":"10.1007/s11837-025-08077-5","url":null,"abstract":"<div><p>This study presents a systematic optimization of laser powder bed fusion (L-PBF) parameters for fabricating equiatomic CoCrFeMnNi high-entropy alloys (HEAs) with enhanced mechanical properties and reduced defect density. By varying the laser power, scanning speed, and hatch spacing under a constant layer thickness, a stable processing window —250 W laser power, 1400 mm/s scanning speed, and 0.07 mm hatch spacing—was identified. Specimens fabricated under these conditions exhibited an ultimate tensile strength of 579 ± 10 MPa, a yield strength of 510 ± 13 MPa, and a total elongation of 59 ± 3%. Electron backscatter diffraction (EBSD) analysis revealed a bimodal grain structure composed of coarse columnar grains and fine equiaxed grains, which contributed to both high strength and ductility. In-situ tensile testing combined with X-ray computed tomography (XCT) enabled real-time tracking of void nucleation and crack propagation, establishing a clear correlation between damage evolution and local stress states. The findings underscore the importance of precise control over energy input and scan strategy to minimize porosity and enhance structural integrity in L-PBF-processed HEAs. This work highlights the efficacy of process-parameter-driven strategies for tailoring microstructure and improving the mechanical reliability of HEAs in demanding structural applications.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2568 - 2578"},"PeriodicalIF":2.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Polyphenol-Mediated Iron Oxide Nanomaterials: Biosynthesis, Physicochemical Characterizations, and Analysis of Functional Groups 多酚介导的氧化铁纳米材料：生物合成、物理化学表征和官能团分析

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-13 DOI: 10.1007/s11837-025-08081-9

Rajiv Periakaruppan, S. V. Nanditha Krishna, V. Jefri Samuel, Joaval Antony Martin, Danusree Babu, Karungan Selvaraj Vijai Selvaraj, Noura Al-Dayan

{"title":"Polyphenol-Mediated Iron Oxide Nanomaterials: Biosynthesis, Physicochemical Characterizations, and Analysis of Functional Groups","authors":"Rajiv Periakaruppan, S. V. Nanditha Krishna, V. Jefri Samuel, Joaval Antony Martin, Danusree Babu, Karungan Selvaraj Vijai Selvaraj, Noura Al-Dayan","doi":"10.1007/s11837-025-08081-9","DOIUrl":"10.1007/s11837-025-08081-9","url":null,"abstract":"<div><p>The present study aims to extract and utilize the polyphenols of <i>Camellia sinensis</i> and <i>Mentha spicata</i> as active capping agents for the bio-fabrication of iron oxide nanoparticles (FeO NPs). Different techniques such as UV-Vis spectroscopy, FTIR spectroscopy, XRD analysis, FESEM, EDX analysis, and TGA were performed to determine the surface resonance, functional groups, size, shape, elemental composition, and thermal stability of the polyphenol-mediated FeO NPs. UV-Vis spectrum of <i>C. sinensis</i> and <i>M. spicata</i> polyphenol-mediated FeO NPs revealed significant absorption at 230 and 250 nm, indicating the formation of FeO NPs. The presence of metal oxides in the FeO NPs were verified through FTIR analysis. XRD spectra confirmed the crystalline structure of <i>C. sinensis</i> and <i>M. spicata</i> polyphenol-mediated FeO NPs. The occurrence of iron and oxygen was verified by the EDX spectra of both polyphenol-mediated FeO NPs. TGA analysis established that <i>C. sinensis</i> polyphenol-mediated FeO NPs had higher thermal stability than <i>M. spicata</i> polyphenol-mediated FeO NPs.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2610 - 2621"},"PeriodicalIF":2.3,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147338680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Investigation of Microstructure and Mechanical Properties of High-Strength Low-Alloy Steel Fabricated by Wire and Arc Additive Manufacturing 线材和电弧增材制造高强度低合金钢的组织和力学性能研究

IF 2.3 4区材料科学

JOM Pub Date : 2026-01-12 DOI: 10.1007/s11837-025-08080-w

Qian Liu, Liguang Wang, Jiageng Liu, Liansheng Chen, Yingli Wei, Yaqiang Tian

{"title":"Investigation of Microstructure and Mechanical Properties of High-Strength Low-Alloy Steel Fabricated by Wire and Arc Additive Manufacturing","authors":"Qian Liu, Liguang Wang, Jiageng Liu, Liansheng Chen, Yingli Wei, Yaqiang Tian","doi":"10.1007/s11837-025-08080-w","DOIUrl":"10.1007/s11837-025-08080-w","url":null,"abstract":"<div><p>Wire and arc additive manufacturing (WAAM) is efficient for producing complex, large-scale metal parts, but the inherent repeated thermal cycling makes it difficult to achieve desired microstructural and mechanical characteristics. The microstructural evolution and mechanical properties of high-strength low-alloy steel during WAAM were investigated using a combined experimental and finite-element simulation approach, which particularly highlights the role of interlayer dwell time. The results demonstrate that reducing the dwell time increases the interpass temperature and intensifies thermal accumulation. Due to the repeated heating and cooling cycles during WAAM, the microstructures vary significantly along the building direction. Proeutectoid ferrite, grain boundary ferrite and bainite were the predominant phases, accompanied by a minor fraction of retained austenite. Anisotropic mechanical properties are observed in WAAM-fabricated steel components. Specimens from the middle region exhibit greater elongation but lower tensile strength than those from the bottom and top regions. Vertical tensile specimens, compared with horizontal ones, exhibit similar strength but reduced elongation, which can be attributed to interlayer structural imperfections. The fractured tensile specimens across all distinct regions exhibited a ductile fracture model. The study offers valuable insights into automating process parameter tuning to regulate the thermal effects during WAAM, thereby allowing accurate control of microstructural and mechanical properties.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"78 3","pages":"2591 - 2609"},"PeriodicalIF":2.3,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147338773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

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