Welding in the World最新文献_第3页

An experimental–numerical investigation on thermal cycles and their effects on microstructure and mechanical properties in wire arc additive manufacturing of Inconel 625 superalloy rectangular walls 热循环对Inconel 625高温合金矩形壁电弧增材制造组织和力学性能影响的实验-数值研究

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-29 DOI: 10.1007/s40194-026-02440-z

Duc Manh Dinh, Van Thao Le, Van Chau Tran, Manh Cuong Bui, Van Son Nguyen, Van Canh Nguyen, Quang Huy Mai, Quoc Hoang Pham

{"title":"An experimental–numerical investigation on thermal cycles and their effects on microstructure and mechanical properties in wire arc additive manufacturing of Inconel 625 superalloy rectangular walls","authors":"Duc Manh Dinh, Van Thao Le, Van Chau Tran, Manh Cuong Bui, Van Son Nguyen, Van Canh Nguyen, Quang Huy Mai, Quoc Hoang Pham","doi":"10.1007/s40194-026-02440-z","DOIUrl":"10.1007/s40194-026-02440-z","url":null,"abstract":"<div><p>Recently, wire arc additive manufacturing (WAAM) has been widely investigated for the fabrication of large-dimensional components in industries. Due to the principle of layer manufacturing in WAAM, the deposited material is subject to complex thermal cycles, which strongly impact microstructures and mechanical properties of components. To provide an insight into such effects, in this paper, the thermal cycles during the cold metal transfer (CMT)-WAAM process of an Inconel 625 rectangular wall are first analyzed. Subsequently, the relationship between thermal cycles and metallurgical properties of the as-deposited wall is explored. For these purposes, numerical models were developed to simulate the thermal behavior during the deposition process. Experimental tests, including microstructure and phase characterization, microhardness, and tensile tests were carried out. The results reveal that WAAM involves repeated thermal cycles with rapid heating rates and slow cooling rates, leading to a dynamic temperature profile. Due to heat accumulation phenomenon along deposited layers, the microstructure of the as-deposited material consists of columnar dendrites with the spacing between dendrite arms increasing as the build height rises. Mechanical properties, including microhardness and tensile strength, correlate with the microstructural variation, with the bottom region showing the finest microstructure and the highest mechanical strength. In contrast, the upper region exhibits coarser grains and reduced microhardness and tensile strengths. These findings highlight the significant role of thermal cycles in determining both the microstructure and mechanical performance of an Inconel 625 thin wall fabricated by CMT-WAAM.</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"70 11","pages":"5809 - 5827"},"PeriodicalIF":3.1,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149190031","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

Performance enhancement of SAC305 solder via adding spherical aluminum powders with different contents 添加不同含量的球形铝粉对SAC305焊料性能的提高

IF 2.5 4区材料科学

Welding in the World Pub Date : 2026-03-25 DOI: 10.1007/s40194-026-02436-9

Jian Zhao, Jiacheng Wei, Jiangshan Liu, Senlin Yi, Jianhua Zhao, Jikang Yan

引用次数: 0

Features of TIG braze welding of rod art structures 棒材结构TIG钎焊的特点

IF 2.5 4区材料科学

Welding in the World Pub Date : 2026-03-24 DOI: 10.1007/s40194-026-02434-x

Serhii Minakov, Yevgenia Chvertko, Nataliya Strelenko, Anton Minakov, Denys Stepanov, Yurii Popil, Dmytro Vdovychenko, Ivan Vdovychenko, Ievgen Byba

引用次数: 0

Effect of annealing temperature on interfacial characteristics and microstamping performance of C7701/Ti/C7701 ultra-thin composite foil 退火温度对C7701/Ti/C7701超薄复合箔界面特性及微冲压性能的影响

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-22 DOI: 10.1007/s40194-026-02435-w

Rui Chen, Zhihe Dou, Hongmei Zhang, Tingan Zhang

{"title":"Effect of annealing temperature on interfacial characteristics and microstamping performance of C7701/Ti/C7701 ultra-thin composite foil","authors":"Rui Chen, Zhihe Dou, Hongmei Zhang, Tingan Zhang","doi":"10.1007/s40194-026-02435-w","DOIUrl":"10.1007/s40194-026-02435-w","url":null,"abstract":"<div><p>Microstamping is a critical process in the fabrication of precision microdevices, and C7701/Ti/C7701 ultra-thin composite foils are considered ideal materials due to their outstanding comprehensive properties. This study systematically investigates the effects of different annealing temperatures (500–700 °C) on the interfacial characteristics and microstamping performance of this composite material. Through microstructural observation, EDS analysis, XRD phase identification, and microstamping experiments, it was found that as the annealing temperature increases, the grain size gradually increases (from 6.36 μm at 500 °C to 24.11 μm at 700 °C), and the interfacial diffusion layer thickness progressively thickens (from 2.1 to 10.1 μm), eventually forming a multi-gradient and multilayer structure accompanied by the formation of numerous intermetallic compounds (mainly Ti<sub>2</sub>Ni and Ti<sub>2</sub>Cu). Composite foils annealed at 500–600 °C exhibit excellent microstamping formability. However, annealing above 650 °C leads to significant thickening and continuous distribution of brittle intermetallic layers, resulting in brittle fracture at the bottom of stamped parts and a sharp decline in formability. This study provides important theoretical guidance for optimizing the microstructure and microstamping formability of multilayer composite metal foils.</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"70 11","pages":"5783 - 5795"},"PeriodicalIF":3.1,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189796","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

Effect of Cu on weld solidification microstructure of CoCrFeNiCux alloys Cu对CoCrFeNiCux合金焊缝凝固组织的影响

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-22 DOI: 10.1007/s40194-026-02431-0

Ping Yu, Chun-Ming Lin, Sindo Kou

引用次数: 0

Initial CFD-based investigation of cooling gas nozzle sets for in situ component cooling for directional independent DED-Arc 定向非依赖型电弧原位构件冷却气体喷嘴组的cfd初步研究

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-21 DOI: 10.1007/s40194-026-02399-x

Sebastian Manzke, Maximilian Rabich, Simon Wolf, Stefan Eichler, Tim Ungethüm, Hans Christian Schmale, Jean Pierre Bergmann

{"title":"Initial CFD-based investigation of cooling gas nozzle sets for in situ component cooling for directional independent DED-Arc","authors":"Sebastian Manzke, Maximilian Rabich, Simon Wolf, Stefan Eichler, Tim Ungethüm, Hans Christian Schmale, Jean Pierre Bergmann","doi":"10.1007/s40194-026-02399-x","DOIUrl":"10.1007/s40194-026-02399-x","url":null,"abstract":"<div><p>The importance of additive manufacturing of metal components is increasing in industry due to new production strategies and the associated increase in cost-effectiveness. Especially for the production of small series, prototypes, or individual parts, economical production alternatives can be expected due to the near-net-shape component structure. Approaches for higher efficiency of the component cooling during the build process indicate the potential for increasing the productivity of wire arc directed energy deposition (DED-Arc). Moreover, the control of the cooling rate is of interest for the processing of materials with low thermal diffusivity such as high-alloy steels. Therefore, in situ component cooling in DED-Arc additive manufacturing using a cooling gas flow is discussed in this article. Previously, fundamental investigations upon design and process parameters have been carried out in this subject. Based on these, a selection of derived design concepts for cooling gas nozzle sets is demonstrated in the present study. These were examined by means of a CFD model (computational fluid dynamics) for the flow of cooling gas onto a plate. The performance when applied to a flat component has been both evaluated model-based with respect to the shielding gas flow and the cooling effect as well as experimentally by measuring the residual oxygen fraction in the shielding gas atmosphere for selected variants.\u0000</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"70 8","pages":"3451 - 3472"},"PeriodicalIF":3.1,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40194-026-02399-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 and mechanical properties of the beryllium-stainless steel joints processed by brazing technique 钎焊铍-不锈钢接头的显微组织和力学性能

IF 2.5 4区材料科学

Welding in the World Pub Date : 2026-03-21 DOI: 10.1007/s40194-026-02433-y

Zuoyong Dou, Xinggen Guo, Ce Ma, Fangfang Li, Shiming Wen, Xianglin Chen, Shengquan Xia, Yubin Li

引用次数: 0

Resistance projection welding using wire mesh inserts: Influence of material and wire mesh geometry 使用钢丝网插件的电阻投影焊接：材料和钢丝网几何形状的影响

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-19 DOI: 10.1007/s40194-026-02374-6

Rene Graver, Nima Eslami, Alexander Harms, Dennis Lauterbach, Stefan Boehm

{"title":"Resistance projection welding using wire mesh inserts: Influence of material and wire mesh geometry","authors":"Rene Graver, Nima Eslami, Alexander Harms, Dennis Lauterbach, Stefan Boehm","doi":"10.1007/s40194-026-02374-6","DOIUrl":"10.1007/s40194-026-02374-6","url":null,"abstract":"<div><p>This work addresses the challenge of temperature-sensitive joining applications in resistance welding. Considered is capacitor discharge welding of sandwich structures from two sheet metals with an interlayer of wire mesh. The intersection points of the individual loose wires form natural projections for the applied projection welding and are used for current concentration. Through the regular arrangement of projections, many individual welds with locally low heat input are created within a single pulse, which leads to a quasi-planar joint area. During the process, for each crossing point, the loose wires are welded together and the joining to the upper and lower cover sheet is also carried out. The aim of this work was to maximize the shear tensile force as a target value by varying the electrode force and energy and to identify correlations. Within the investigations, the influence of the wire mesh materials was analyzed in the form of ferritic as well as low-alloy steels. In addition, the geometry of the wire mesh was investigated by considering the wire diameter and the number of projections with respect to joint formation and joint quality. An optimized number of 50 projections were determined with shear tensile forces above 40 kN for a X6Cr17 wire mesh. With larger connection surfaces, a wire diameter of 1.2 mm proved advantageous compared to 1.0 mm. The higher-density wire material X6Cr17 required less energy compared to C9D for comparable heat inputs into the joints. Target weld areas were identified and welding parameter recommendations provided.</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"70 7","pages":"3023 - 3042"},"PeriodicalIF":3.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261922","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

Peak temperature and cooling rate effects on M–A constituent characteristics in the ICCGHAZ of HSLA steels: a review 峰值温度和冷却速率对高强度钢icghhaz中M-A成分特征的影响

IF 3.1 4区材料科学

Welding in the World Pub Date : 2026-03-19 DOI: 10.1007/s40194-026-02429-8

Daynara Faustina Moreira de Oliveira, Geraldo Lúcio de Faria, Rodrigo Rangel Porcaro

{"title":"Peak temperature and cooling rate effects on M–A constituent characteristics in the ICCGHAZ of HSLA steels: a review","authors":"Daynara Faustina Moreira de Oliveira, Geraldo Lúcio de Faria, Rodrigo Rangel Porcaro","doi":"10.1007/s40194-026-02429-8","DOIUrl":"10.1007/s40194-026-02429-8","url":null,"abstract":"<div><p>The intercritically reheated coarse-grained heat-affected zone (ICCGHAZ) is critical to the structural integrity of high-strength low-alloy (HSLA) steels . A contributing factor to this is the formation of the martensite-austenite (M-A) constituent. However, the effect of M-A on mechanical properties depends on its characteristics, which can be readily modified by the welding thermal cycle. In this context, this work presents a literature review on the effects of the intercritical peak temperature (Tp<sub>2</sub>) and cooling rate on the formation and characteristics of the M-A constituent in the ICCGHAZ of HSLA steels. Based on the information gathered, it was possible to note that variations in the Tp<sub>2</sub> and the cooling rate have shown different influences on the aspects of the M-A constituent, with distinct implications for the material properties, particularly toughness. The data compiled in this article can assist researchers and industry professionals in optimizing processing variables, leading to ICCGHAZs with improved properties that enhance the safety of HSLA steels in service.</p></div>","PeriodicalId":809,"journal":{"name":"Welding in the World","volume":"70 11","pages":"5767 - 5782"},"PeriodicalIF":3.1,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40194-026-02429-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A review of the current status of transient liquid phase bonding of powder metallurgy superalloys 粉末冶金高温合金瞬态液相结合研究现状综述

IF 2.5 4区材料科学

Welding in the World Pub Date : 2026-03-17 DOI: 10.1007/s40194-026-02406-1

Xinlei Ding, Yunjia Huang, Wei Guo, Yeming Guo

引用次数: 0