...R. K. Gupta; V. Anil Kumar; Ravi Ranjan Kumar; R. Vivek; P. V. Venkitakrishnan ABSTRACT Gas tungsten arc welding (GTAW) and electron beam welding (EBW) studies on thin Nimonic-75 sheets of 1.6-mm thickness have been carried out using butt-weld configuration. Manual GTAW was done using Inconel-718...

...A. Rajesh Kannan; S. Mohan Kumar; R. Pramod; N. Siva Shanmugam; Yasam Palguna; M. Vishnukumar Lightweight structures fabricated from dissimilar aluminum alloys in aerospace and marine industries involve a lot of welding. Aluminum alloys AA5052-H32 and AA2219-T31 were successfully welded...

...Bhushan Y. Dharmik; Nitin Kumar Lautre Thin sheets (0.5 × 10 −3 m) of cold-rolled nonoriented (CRNO) electrical steel are widely used for rotating electrical machines. Gas tungsten arc (GTA) and, recently, laser welding are used for welding M-43 grade CRNO steel. The performance of CRNO is thus...

... economically unreasonable to directly produce large size components. Instead of directly building parts, technologies like hybrid building are used. To avoid extensive clamping devices for welding, additive manufacturing can be used to design new gap geometries. With these new geometries, the positions...

...Florian Vollert; Jens Gibmeier; Joana Rebelo-Kornmeier; Jonny Dixneit; Thilo Pirling Low transformation temperature (LTT) weld filler materials offer an attractive alternative to cost intensive postweld treatments as they can mitigate detrimental welding residual stresses during the welding process...

... change at the same time or extracting depth-specific information. This article reviews the studies for the measurement of residual stress by magnetic Barkhausen noise method, particularly focusing on the processes widely used in industry, namely shot peening and welding. Materials Performance...

...Jonas Hensel; Thomas Nitschke-Pagel; Klaus Dilger Fatigue design concepts for welded structures generally consider residual stresses as a factor affecting the mean stress influence. Residual stresses are mostly interpreted as mean stresses. In addition, high tensile residual stresses...

...N. Maestri; P. Marangoni; D. Pettene; B. Rivolta; R. Gerosa This experimental work is focused on the residual stresses induced by multi-pass welding of thick components. Two samples were produced, inspired by the nozzle-vessel geometry, with Submerged Arc Welding buttwelding, performed according...

...Arne Kromm; Thomas Lausch; Dirk Schröpfer; Jonny Dixneit; Andreas Hannemann; Thomas Kannengiesser Residual stresses are crucial when assessing the performance of welded components. The present work deals with the possibilities of transferring the real-life boundary conditions of welding, which...

...T. K. Kandavel; D. Vijay The present research work embraces the experimental studies on mechanical and metallurgical properties of powder metallurgy (P/M) plain carbon steel (Fe-0.5 %C) welded autogenously with various modes of current, namely, alternate current, direct current, mixed mode current...

...Stephen M. French During a major overhaul at a supercritical boiler, a new alcove panel was installed in the front wall (Corner #3) that subsequently developed a leak on the cold side of the tube following restart. The tube in question is a 1¼ chromium and ½ molybdenum steel with a spiral weld...

...-temperature mechanical properties of two Grade 91 welded plates and focuses on the creep behavior, proposing a modified expression of the Larson–Miller parameter for the estimation of critical combinations of temperature, stress, and time, which could lead to rupture. The suggested parameter, which is highly...

...Subhrajit Debnath; Manidipto Mukherjee; Tapan Kumar Pal Low-alloy quench and tempered (Q&T) steel plates having yield strength of a minimum of 670 MPa are used extensively for the fabrication of impellers, penstocks, excavators, dumpers, and raw material handling devices, where welding...

...M. Balakrishnan; V. Balasubramanian; G. Madhusudhan Reddy This study was carried out to evaluate the effect of hardfacing processes on the ballistic performance of armour grade quenched and tempered (Q&T) steel welded joints. Two joints were fabricated using 4 mm thick tungsten carbide (WC...

...J. K. Doley; S. D. Kore Electromagnetic welding (EMW) is a solid state impact welding technique which uses pulsed electromagnetic field for welding electrically conductive work pieces like aluminum. High velocity of impact created by the electromagnetic force causes the removal of oxide layer from...