Effect of laser welding on microstructure and mechanical behaviour of dual phase 600 steel sheets

Mansur, Vinicius Machado; Mansur, Raquel Alvim de Figueiredo; Carvalho, Sheila Medeiros de; Siqueira, Rafael Humberto de Mota; Lima, Milton Sérgio Fernandes de

doi:10.1016/j.heliyon.2021.e08601

Cited by 13 publications

(4 citation statements)

References 57 publications

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“…As shown in figure 10(b), the microhardness of the weld zone of the electron beam joint tissue with the addition of the V/Fe composite layer is higher than that of the base material zone on both sides, and the microhardness of the weld zone is relatively uniformly distributed. Compared with figure 10(a), the microhardness of the weld zone with the addition of the V/Fe composite layer is significantly higher than that of the weld zone without this layer, and the reason for this phenomenon is mainly due to grain refinement [34].…”

Section: Hardness Distribution Of the Electron Beam Welded Jointmentioning

confidence: 66%

Effect of V/Fe composite interlayer on the microstructure and mechanical properties of electron beam welded joints of Ta-10W and GH3128

Cao

2022

Mater. Res. Express

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Electron beam welding of Ta-10W and GH3128 superalloys without and with the addition of V/Fe composite interlayer was carried out to study the effect of the addition of V/Fe composite interlayer on the microstructure, mechanical properties and fracture characteristics of the welded joints. The results showed that both welded joints were well formed, with the addition of V/Fe composite interlayer having finer grains in each region. The fracture form of both welded joints are brittle fracture, fracture location are in the Ta-10W side. However, some ductile fracture features were present in the fracture of the added V/Fe composite interlayer. In direct electron beam welding, the Ta-10w side of the reaction layer there is a large number of Ta-Ni and other intermetallic compounds, which is the most important reason for its poor mechanical properties of the joint. the addition of V/Fe composite interlayer greatly reduces the tendency of intermetallic compound formation in the weld, changing the microstructure of the reaction layer, the tensile strength of the joint has been significantly increased, the maximum tensile strength of 362 MPa.

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Section: Hardness Distribution Of the Electron Beam Welded Jointmentioning

confidence: 66%

Effect of V/Fe composite interlayer on the microstructure and mechanical properties of electron beam welded joints of Ta-10W and GH3128

Cao

2022

Mater. Res. Express

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“…Some researchers have observed ferrite and bainite fragments in addition to martensite in this zone. Near the FZ, on both sides of the joint, where fusion is not observed, solid-state phase transformations occur due to welding heat input, forming the heat-affected zone (HAZ) [15]. Figure 6 shows the microstructures taken from the HAZ, the formed part and the heat-affected zone of the formed part.…”

Section: Resultsmentioning

confidence: 99%

Study on mechanical and microstructural properties of advanced high-strength welded sheet metal

Damlacik,

Baydi,

Küpeli

et al. 2023

tribomat

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Continuous research is carried out in the automotive industry to decrease the weight of automobile bodies without reducing durability. For this purpose, the use of welding sheet metal is one of the successful techniques. Welded sheets are formed by combining two or more flat materials with different thicknesses and different mechanical properties, using the welding method, before being shaped in order to provide superior properties. This situation requires more attention during the shaping stages. It is important to calculate the pressures to be applied to the welding areas and to apply the shaping steps in a way that will not reduce the material strength. For this reason, the production stages of the dies to be used in the manufacture of these parts are just as important. In this study, an innovative die design is carried out for the production of welded sheet metal. The microstructure and mechanical properties of the welded sheet formed by the die were examined. The effect of the forces applied to the welding areas on the material and the mechanical properties of the materials of different thicknesses were determined. Within the scope of the study, microstructure analysis, hardness and tensile tests were carried out and the results were examined. When the results obtained were examined, it was seen that the strength and hardness values of the samples obtained from the welded area were higher than the other areas.

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“…Table 5 shows the results obtained in the studies regarding the mechanical properties of the welded joints of various types of DP steels. It was verified in [88] that the welding process did not change the component yield behavior. All samples reached the minimum required UTS for DP600 (600 MPa).…”

Section: Tensile Propertiesmentioning

confidence: 93%

Quality Assessment of Laser Welding Dual Phase Steels

Marques

Péreira

Silva

2022

Metals

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Since non-conforming parts create waste for industry, generating undesirable costs, it is necessary to set up quality plans that not only guarantee product conformity but also cut the root causes of welding defects by developing the concept of quality at origin. Due to their increasing use in automotive industry, dual phase (DP) steels have been the chosen material for this study. A quality plan for welding DP steel components by laser was developed. This plan is divided into three parts: pre-welding, during and post-welding. A quality assessment regarding mechanical properties, such as hardness, microstructure and tensile strength, was also performed. It was revealed that DP steel does not present considerable weldability problems, except for the usual softening of the heat affected zone (HAZ) and the growth of martensite in the fusion zone (FZ), and the best analysis techniques to avoid failures in these steels are finite element method (FEM), visual techniques during welding procedure and digital image correlation (DIC) for post-weld analysis.

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Effect of laser welding on microstructure and mechanical behaviour of dual phase 600 steel sheets

Cited by 13 publications

References 57 publications

Effect of V/Fe composite interlayer on the microstructure and mechanical properties of electron beam welded joints of Ta-10W and GH3128

Effect of V/Fe composite interlayer on the microstructure and mechanical properties of electron beam welded joints of Ta-10W and GH3128

Study on mechanical and microstructural properties of advanced high-strength welded sheet metal

Quality Assessment of Laser Welding Dual Phase Steels

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