Modeling of welding residual stress in a dissimilar metal butt-welded joint between P92 ferritic steel and SUS304 austenitic stainless steel

Li, Suo; Li, Jian; Sun, Guangai; Deng, Dean

doi:10.1016/j.jmrt.2023.02.123

Cited by 22 publications

(2 citation statements)

References 38 publications

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“…Martensite formation at the interface zone is attributed to factors such as the cooling rate during solidification of the weld pool [64][65][66]. Additionally, the high number of microalloying elements in the chemical composition of H13 steel and the presence of tempered martensite in the substrate (see Figure 8b) lead to the formation of untempered martensite during the rapid cooling of the welding process [67,68].…”

Section: Microstructure and Xrd Measurementsmentioning

confidence: 99%

Evaluation of Austenitic Stainless Steel ER308 Coating on H13 Tool Steel by Robotic GMAW Process

Hernandez-Flores,

Rodriguez-Vargas,

Stornelli

et al. 2023

Metals

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Within the drilling, petrochemical, construction, and related industries, coatings are used to recover components that failed during service or to prevent potential failures. Due to high stresses, such as wear and corrosion, which the materials are subjected to, industries require the application of coating between dissimilar materials, such as carbon steels and stainless steels, through arc welding processes. In this work, an austenitic stainless steel (ER308) coating was applied to an H13 tool steel substrate using the gas metal arc welding (GMAW) robotic process. The heat input during the process was calculated to establish a relationship between the geometry obtained in the coating and its dilution percentage. Furthermore, the evolution of the microstructure of the coating, interface, and substrate was evaluated using XRD and SEM techniques. Notably, the presence of martensite at the interface was observed. The mechanical behavior of the welded assembly was analyzed through Vickers microhardness, and a pin-on-disk wear test was employed to assess its wear resistance. It was found that the dilution percentage is around 18% at high heat input (0.813 kJ/mm) but decreases to about 14% with reduced heat input. Microhardness tests revealed that at the interface, the maximum value is reached at about 625 HV due to the presence of quenched martensite. Moreover, increasing the heat input favors wear resistance.

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Section: Microstructure and Xrd Measurementsmentioning

confidence: 99%

Evaluation of Austenitic Stainless Steel ER308 Coating on H13 Tool Steel by Robotic GMAW Process

Hernandez-Flores,

Rodriguez-Vargas,

Stornelli

et al. 2023

Metals

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“…The shape of a modelling workpiece must be as similar to the real one as possible for a modelling simulation to be effective [13]. Using the restraint factor, a highly effective computational approach for modelling welding residual stress might be created for materials used in nuclear reactors [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of the Effect of Fusion Welding Processes on Residual Stress in Stainless Steel Pipe Weld Joints Used in Fast Reactors

Ragavendran,

Vasudevan

2023

Engineering Science & Technology

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The main structural material used in the building of Fast Breeder Reactors (FBR) is stainless steel of type 316L(N). Finite Element Model (FEM)-based simulations were carried out to understand the effect of various welding processes on the residual stresses induced in 316L(N) stainless steel primary sodium-carrying pipes with an inner diameter of 208 mm and a wall thickness of 5.6 mm. The welding processes considered include multi-pass Tungsten Inert Gas (TIG) welding, A-TIG, laser, hybrid laser-TIG, and Hybrid laser-Metal Inert Gas (MIG). First, single or hybrid heat sources are chosen based on the welding process, and then weld bead profiles obtained during simulation are made to match with that of the actual weld bead profiles obtained during experiments. Then, the optimised heat source is employed for the thermal analysis. The thermal analysis output is then successively linked and provided as input to the mechanical analysis, which uses an isotropic hardening model to predict hoop and axial residual stresses in pipe weld joints. The results show that the A-TIG weld joint exhibited lower hoop stress (165 MPa at inner diameter and -2 MPa at outer diameter) in comparison with that of the other weld joints. The lower residual stress is attributed due to the straight-sided weld bead, lower peak temperature, and slower cooling rate of the A-TIG welding. Therefore, A-TIG welding is recommended among the chosen fusion welding processes for welding of 316L(N) stainless steel primary sodium carrying pipes to minimise the residual stresses and mitigate the premature failure of the pipe weld joints.

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Comprehensive Study on Mechanical and Metallurgical Behavior of P-92 Steel

Pratap Singh,

Nand Agrawal,

Bishwakarma

et al. 2024

Lecture Notes in Mechanical Engineering

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Modeling of welding residual stress in a dissimilar metal butt-welded joint between P92 ferritic steel and SUS304 austenitic stainless steel

Cited by 22 publications

References 38 publications

Evaluation of Austenitic Stainless Steel ER308 Coating on H13 Tool Steel by Robotic GMAW Process

Evaluation of Austenitic Stainless Steel ER308 Coating on H13 Tool Steel by Robotic GMAW Process

Numerical Simulation of the Effect of Fusion Welding Processes on Residual Stress in Stainless Steel Pipe Weld Joints Used in Fast Reactors

Comprehensive Study on Mechanical and Metallurgical Behavior of P-92 Steel

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