Electron beam welds between dissimilar stainless steels with different solidification modes were studied with a view to elucidating the role of nucleation, cooling rate and direction of dendrite growth on the tendency towards metastable phase solidification. The results are compared with the solidification behaviour of levitation melted samples. It is demonstrated that with careful design, stai...

This study aims to evaluate the weldability of dissimilar welds with Inconel 625 and Hastelloy C-276 nickel-based alloys deposited on ASTM A36 AISI 1045 carbon steel plates. The were carried out by GMAW process evaluated Trans-Varestraint test. test results statistically evaluated, Fusion Zone solidification processes simulated in JMatPro software using several dilution levels. analysis varianc...

The metallurgical aspects of weld solidification cracking in Ni-based superalloys (with Ti+Al > 5 mass%) have not been widely investigated thus far. Herein, the susceptibility CM247LC superalloy and its welds with ERNiFeCr-2 filler wire was quantitatively evaluated using a novel modified Varestraint testing method, for successful manufacturing gas turbine blades. It found that brittle temper...

To obtain satisfactory welds in positional laser beam welding, it is necessary to know how process parameters will influence the quality of welds in different welding positions. In this study, the titanium alloy Ti6Al4V sheets were laser welded in two vertical welding positions (vertical up and vertical down), and the appearance, porosity, strength, and ductility of the laser joints were evalua...

The welding of dissimilar materials is one the challenging issues in thefabrication industry to obtain required quality welds using fusion weldingmethods. However, some processes recently improved interface bondingwith low joint strength. Unfortunately, major intermetallic compoundscould not alleviate from interface. Alternatively, solid-statewelding methods revealed fewer intermetallics at for...