Materials Science and Engineering: A最新文献

Strength-conductivity synergy in hypoeutectic Al-Si conductors via ultrafine-grained embedded Si nanoprecipitates

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-03-01 DOI: 10.1016/j.msea.2025.148124

Mohammad Khoshghadam-Pireyousefan , Mousa Javidani , Alexandre Maltais , Julie Lévesque , X.-Grant Chen

{"title":"Strength-conductivity synergy in hypoeutectic Al-Si conductors via ultrafine-grained embedded Si nanoprecipitates","authors":"Mohammad Khoshghadam-Pireyousefan , Mousa Javidani , Alexandre Maltais , Julie Lévesque , X.-Grant Chen","doi":"10.1016/j.msea.2025.148124","DOIUrl":"10.1016/j.msea.2025.148124","url":null,"abstract":"<div><div>Hypoeutectic Al–Si alloys are promising candidates for novel Al conductor cables; however, their limited electrical conductivity (EC) and mechanical strength hinder their widespread industrial applications. This study investigates the influence of two thermomechanical processing routes—conventional (C-TMP) and modified (M-TMP)—on the microstructural evolution and the resulting enhancements in mechanical and electrical properties of hypoeutectic AA4043 Al alloy. The C-TMP method improved the ultimate tensile strength from 180.7 MPa to 289.8 MPa and slightly increased the EC from 50.1 to 51.4 % IACS, however, it still remained below the industrial requirement threshold of 52.5 % IACS. In contrast, the M-TMP method successfully overcame the strength-EC trade-off by achieving simultaneous improvements in both properties: the UTS reached 231.4 MPa, while the EC increased to 59.2 % IACS, which represent enhancements of 28.1 % and 18.2 %, respectively, over the as-rolled (AsR) rod condition. The substantial improvement in the EC was attributed to the depletion of solute Si from the Al matrix through the formation of Si nanoprecipitates during pre-annealing. Microstructural analysis of the M-TMP sample revealed the development of an ultrafine-grained (UFG) structure containing embedded Si nanoprecipitates, with a lower dislocation density compared to the C-TMP sample. The underlying mechanisms contributing to the strength-EC synergy are discussed using constitutive models, focusing on Si nanoprecipitates, dislocation density, and grain refinement. These results demonstrate that M-TMP effectively resolved the strength-EC trade-off and yielded a high-strength, high-EC Al-Si conductor that is suitable for advanced electrical wiring applications.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148124"},"PeriodicalIF":6.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Microstructure evolution of 2205 duplex stainless steel (DSS) and inconel 718 dissimilar welded joints and impact on corrosion and mechanical behavior 2205 双相不锈钢 (DSS) 和 inconel 718 异种焊接接头的微观结构演变及其对腐蚀和机械性能的影响

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-27 DOI: 10.1016/j.msea.2025.148136

Yiming Shen , Lishan Wang , Liangliang Li , Dehai Kong , Ruyu Ma , Liping Liu , Pengfei Li

{"title":"Microstructure evolution of 2205 duplex stainless steel (DSS) and inconel 718 dissimilar welded joints and impact on corrosion and mechanical behavior","authors":"Yiming Shen , Lishan Wang , Liangliang Li , Dehai Kong , Ruyu Ma , Liping Liu , Pengfei Li","doi":"10.1016/j.msea.2025.148136","DOIUrl":"10.1016/j.msea.2025.148136","url":null,"abstract":"<div><div>The Inconel 718/2205 DSS dissimilar welding is widely used in subsea pipelines. In order to investigate the influence of high-density energy sources on the microstructure and properties of welded joints, a 2205 DSS/Inconel 718 dissimilar joint was fabricated using laser beam welding (LBW). The microstructure of the joint was analyzed using scanning electron microscopy (SEM). The results indicate that a large number of irregular Laves phases were formed in the weld zone, with good fusion between IN718 and the weld zone, while the interface between 2205 and the weld was clear, forming a transition zone. The corrosion behavior and characteristics of the weld and base material in a 3.5 wt% NaCl solution were studied using electrochemical methods. Compared to the base material IN718, the passivation current density of the welded joint decreased by 18.6 %, and the corrosion current density decreased by 41 %. More corrosion products were generated in the welded joint, which is the main reason for the improved corrosion resistance. The hardness and tensile properties of the joint were evaluated, showing that due to the formation of Laves phases, the hardness of the welded joint increased by 19.1 % compared to IN718. However, the large Laves phases are prone to fracture during plastic deformation, leading to a decrease in the elongation of the welded joint. The research findings of this study are of significant importance for the application of stainless steel and nickel-based alloy welded joints in engineering.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148136"},"PeriodicalIF":6.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Comparative study on the weldability and mechanical performance of IN718, ATI 718Plus alloy in laser beam welding

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-27 DOI: 10.1016/j.msea.2025.148133

Xiangyu Huang , Hongjun Zhang , Zhijia Wang , Jianming Li , Yanfei Geng , Xiaosheng Zhou , Xuetong Li , Zhenhua Bai

{"title":"Comparative study on the weldability and mechanical performance of IN718, ATI 718Plus alloy in laser beam welding","authors":"Xiangyu Huang , Hongjun Zhang , Zhijia Wang , Jianming Li , Yanfei Geng , Xiaosheng Zhou , Xuetong Li , Zhenhua Bai","doi":"10.1016/j.msea.2025.148133","DOIUrl":"10.1016/j.msea.2025.148133","url":null,"abstract":"<div><div>Laser beam welding (LBW) has recently attracted worldwide research attention as a candidate of joining technology for the repair and assembly of aero-engine components. Nickel-based superalloys are the primary structural materials for hot-end components, in the present work, the weld profile, microstructure configuration, and relevant mechanical properties of nickel-based IN718, 718Plus similar/dissimilar LBW joints were comparatively investigated. The single-pass butted LBW on IN718/IN718 thin plates without wire filling obtained a continuously penetrated weld with a wineglass-shaped morphology. In comparison, the implementation of LBW on 718Plus/718Plus faced several challenges that it was difficult to form a continuous and stable weld profile, even when the weld penetration was continuous, the depth-to-width ratio was insufficiently larger to cause an exaggerated weld reinforcement, weld pool collapsing and other issues, the joints with bowl-shaped weld profile showed significantly degraded tensile properties than IN718/IN718 joints. The dissimilar welding of IN718/718Plus was attempted to improve the weldability of 718Plus, which achieved a continuously symmetrical wineglass-shaped weld profile with enhanced depth-to-width ratio, reduced reinforcement and superior tensile properties compared to 718Plus/718Plus joints. The results provide vital data for understanding the weldability of IN718 and 718Plus superalloys, and open a novel thought resolving the problems of 718Plus LBW joints via introducing IN718 as dissimilar weldment.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148133"},"PeriodicalIF":6.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Study on the hydrogen embrittlement behaviour of ultrasonic surface rolling gradient structural materials under alternating stress

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-26 DOI: 10.1016/j.msea.2025.148131

Gang Wang , Mian Wang , Xinjun Zhang , Yang Tong , Lunsu Liang , Guangtao Xu , Minghao Zhao , Lingxiao Li

引用次数: 0

Novel method of additive manufactured functionally gradient materials using multi-component stranded welding wires

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-26 DOI: 10.1016/j.msea.2025.148134

Run Chen , Weihang Lu , Fengbo Sun , Laibo Sun , Pengbo Wu , Jipeng Zou , Naiwen Fang , Lujun Huang , Cunyu Wang , Jiayi Jin , Xin Zhang , Lin Geng

{"title":"Novel method of additive manufactured functionally gradient materials using multi-component stranded welding wires","authors":"Run Chen , Weihang Lu , Fengbo Sun , Laibo Sun , Pengbo Wu , Jipeng Zou , Naiwen Fang , Lujun Huang , Cunyu Wang , Jiayi Jin , Xin Zhang , Lin Geng","doi":"10.1016/j.msea.2025.148134","DOIUrl":"10.1016/j.msea.2025.148134","url":null,"abstract":"<div><div>In this work, the stranded welding wires (SWWs) were firstly used to fabricate functionally gradient materials (FGMs) by cold metal transfer process. A comprehensive assessment of this method was conducted in the 316L/Inconel718 system. The FGM was successfully fabricated with an inherently high depositing rate (70.7 g/min). Due to the unique molten stirring effect of SWWs, the as-printed FGM has shown excellent forming quality (low porosity value of 0.00378 %) and strong interfacial bonding which is achieved by the smooth compositional transition and heterogeneous microstructure at the interfacial zone. Combined with the compositional and structural similarity, the strong bonding fully unleashes the deformation potential of the stronger part in FGM, achieving a unique bimodal local strain distribution and outstanding fracture elongation (34 ± 4 %). This work can provide a new option for the fabrication methods of FGMs.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148134"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Electropulsing-assisted chemical boundary engineering to achieve strengthening and toughening of Ti-6Al-4V alloy manufactured via laser powder bed fusion

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-26 DOI: 10.1016/j.msea.2025.148130

Xiaofeng Xu , Lai Wei , Xudong Yan , Yi Yang , Yongqiang Yu , Guojun Wang , Zhicheng Wu , Binghao Zhao , Dayong Zhang

{"title":"Electropulsing-assisted chemical boundary engineering to achieve strengthening and toughening of Ti-6Al-4V alloy manufactured via laser powder bed fusion","authors":"Xiaofeng Xu , Lai Wei , Xudong Yan , Yi Yang , Yongqiang Yu , Guojun Wang , Zhicheng Wu , Binghao Zhao , Dayong Zhang","doi":"10.1016/j.msea.2025.148130","DOIUrl":"10.1016/j.msea.2025.148130","url":null,"abstract":"<div><div>Conventional post-processing techniques, such as hot isostatic pressing and heat treatment, often encounter difficulties in achieving an optimal balance between high strength and ductility in additively manufactured titanium alloys. This study presents an electropulsing-assisted chemical boundary engineering technique to address this challenge in the Ti-6Al-4V alloy prepared via laser powder bed fusion (LPBF). This innovative process establishes chemical boundaries within the prior-β grains through controlling element diffusion at elevated temperatures, resulting in a novel bi-lamellar martensitic microstructure. The technology yields a high yield strength of ∼1118 MPa and an elongation of ∼11.2 % in LPBF-fabricated Ti-6Al-4V alloy. The enhanced yield strength is attributed to the presence of chemical boundaries that impede dislocation slip. Additionally, these chemical boundaries restrict the growth of α′ and inhibit the propagation of microcracks, leading to a significant increase in elongation. This innovative process is anticipated to be an effective method for enhancing the mechanical properties of various additively manufactured α+β titanium alloys.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148130"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Characterizing the role of AZ31 content on evolution of microstructure, grain structure, texture, and mechanical characteristics of heavily deformed Al/AZ31 composites

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-25 DOI: 10.1016/j.msea.2025.148119

Wenbo Ding

引用次数: 0

A facile fine-grain strategy to fabricate (Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2)C-SiC ceramics with enhanced strength and toughness

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-25 DOI: 10.1016/j.msea.2025.148125

Tianzhan Shen, Cuiyan Li, Haibo Ouyang, Mengyao He, Yanlei Li, Leer Bao, Jintao Wang, Zihao Chen, Jiaqi Liu, Xinzi Zhong

{"title":"A facile fine-grain strategy to fabricate (Ta0.2Nb0.2Ti0.2Hf0.2Zr0.2)C-SiC ceramics with enhanced strength and toughness","authors":"Tianzhan Shen, Cuiyan Li, Haibo Ouyang, Mengyao He, Yanlei Li, Leer Bao, Jintao Wang, Zihao Chen, Jiaqi Liu, Xinzi Zhong","doi":"10.1016/j.msea.2025.148125","DOIUrl":"10.1016/j.msea.2025.148125","url":null,"abstract":"<div><div>(Ta<sub>0.2</sub>Nb<sub>0.2</sub>Ti<sub>0.2</sub>Hf<sub>0.2</sub>Zr<sub>0.2</sub>)C high-entropy ceramic (HEC) is a potential candidate material for use in extreme environments. However, improving HEC ceramics' toughness is a great challenge. In this study, a facile fine-grain method has been used to fabricate the HEC-SiC ceramics with enhanced strength and toughness. The influence of SiC particle size in the densification, microstructure, and mechanical properties of the HEC-SiC ceramics was studied. With the addition of fine SiC particles (HS-0.5 sample), its relative density increases from 91.23 % to 97.19 %, and the HEC phase shows a reduction in grain size from 3.48 to 0.83 μm on average, compared with the monolithic HEC ceramics (HS-0 sample). Additionally, the HEC phase exhibits an increased lattice distortion from 0.044 % to 0.151 % with the addition of SiC fine particles. The HS-0.5 sample exhibits superior mechanical properties with a fracture toughness of 5.48 MPa m<sup>1/2</sup>, a Vickers hardness of 26 GPa, and a flexural strength of 530 MPa, which is 56.1 %, 44.4 %, and 60.1 % higher than that of the monolithic HEC ceramics. This encouraging enhancement of hardness, toughness, and strength of HEC-SiC ceramics is ascribed to the improvement of ceramics sintering, fine-grain strengthening, solid solution strengthening, and particle toughening by the fine SiC particles.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148125"},"PeriodicalIF":6.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhanced properties of additively manufactured W/ODS steel multimaterials by modulating the distribution of intermediate phases

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-25 DOI: 10.1016/j.msea.2025.148115

Zhirong Xie , Yan Zhou , Xiaoqiang Wang , Xue Li , Ruifang Wang , Shifeng Wen , Yusi Che , Yusheng Shi , Jilin He

{"title":"Enhanced properties of additively manufactured W/ODS steel multimaterials by modulating the distribution of intermediate phases","authors":"Zhirong Xie , Yan Zhou , Xiaoqiang Wang , Xue Li , Ruifang Wang , Shifeng Wen , Yusi Che , Yusheng Shi , Jilin He","doi":"10.1016/j.msea.2025.148115","DOIUrl":"10.1016/j.msea.2025.148115","url":null,"abstract":"<div><div>In the process of fabricating immiscible bimetallic structures using Laser powder bed fusion (LPBF), the formation of brittle intermetallic compounds at the interface is common, significantly degrading the mechanical properties of the materials. This study aimed to enhance the mechanical properties of As-built W/ODS-316L by adjusting the phase distribution at the interface through solid solution heat treatment. The transition zone of As-built W/ODS-316L was found to contain large intermetallic compound (CIC) clusters composed of Fe<sub>2</sub>W, Fe<sub>7</sub>W<sub>6</sub>, and Fe<sub>6</sub>W<sub>6</sub>C phases along the grain boundaries of the γ-Fe matrix. These CIC, featuring a core-shell structure, hindered dislocation motion and grain boundary slippage, leading to stress accumulation. Following solution heat treatment, the ultimate tensile strength of W/ODS-316L increased from 283.8 ± 8.4 MPa to 327.5 ± 7.8 MPa, while elongation improved from 7.97 ± 0.67 % to 20.34 ± 0.84 %. The mechanical property enhancement is attributed to two factors. First, the decomposition of Fe<sub>7</sub>W<sub>6</sub>, reduction in CIC size, and precipitation of fine Fe<sub>6</sub>W<sub>6</sub>C within the γ-Fe matrix reduced stress levels. Second, heat treatment transformed the transition zone interfaces into semi-coherent interfaces with the γ-Fe matrix, improving compatibility and facilitating dislocation motion, which prevented macroscopic crack formation. These findings confirm that solution heat treatment effectively improves the strength and ductility of As-built W/ODS-316L multi-material structures by transforming the interface into semi-coherent phases and reducing stress accumulation.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148115"},"PeriodicalIF":6.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Comparative study of heat treatment effects on the mechanical properties of laser directed energy deposited Ti6Al4V alloy with and without ultrasonic impact treatment

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-25 DOI: 10.1016/j.msea.2025.148127

Wenze Yu , Fubin Wang , Yuke Liu , Fengchun Jiang , Mehrdad Zarinejad , Yunxiang Tong

引用次数: 0