Three-dimensional thermal simulation and experimental investigation of GTAW circumferentially butt-welded Incoloy 800 pipes

Comparison of weld characteristics between longitudinal seam and circumferential butt weld joints of cylindrical components

“…In addition to the above studies, there are numerous investigations [11][12][13][14][15][16][17][18] that pertain to study the effect of different weld sequencing, weld process parameters, boundary conditions, heat input, number of weld passes, influence of pipe radius to thickness ratio, effect of weld metal yield stress, dissimilar pipe materials, phase transformation effects, post weld heat treatments, stress distributions near weld start/end location for the circumferential joining of cylindrical components. As well as, weld temperature characteristics and residual stress distributions are described through numerical analysis with experimental validation.…”

Study on welding temperature distribution in thin welded plates through experimental measurements and finite element simulation

“…In another work, Deng and Murakawa (2008) measured the temperature cycles and residual stresses in 2.25Cr-1Mo steel pipes incorporating solid-state phase transformation. Kermanpur et al (2008) studied the temperature cycles due to different welding sequences and parameters of inconel 800 welded pipes. They showed that volumetric heat source provides the best results for temperature cycles throughout the pipe.…”

Numerical simulation and experimental investigation of temperature and residual stresses in GTAW with a heat sink process of Monel 400 plates

“…The arc efficiency in the GTAW process was assumed as 0.6 (Kermanpur et al, 2008;Purmohamad et al, 2010). The welding parameters are shown in Table 2.…”

“…It is well known that the thermal stress and distortion in the welded structures are mainly caused by local and non-uniform heating and cooling during the welding process (Dong, 2005). Hence, studies on the temperature distribution characteristics and the thermal histories are essential and prerequisite to study the stress and distortion control mechanism of welding (Kermanpur et al, 2008). Many numerical studies have been conducted to model residual stresses in three-dimension (3D).…”