Abstract The microstructure of ERNiCrFe-13 multipass weld metal has been shown to contain Laves/γ or σ/γ eutectic constituents that can increase susceptibility solidification and liquation cracking resulting from the low reaction temperature. Under poor heat dissipation conditions such as on edge large thickness welded components, a partially melted zone (PMZ) may form in during welding. micros...

In this paper, 8 mm thickness 2205 duplex stainless steel (DSS) plates were successfully welded using keyhole tungsten inert gas welding (K-TIG) welding, and numerical simulations performed applying the finite element method. Three models of combined heat source adopted to verify accuracy experiment. The process under different speeds simulated, temperature field, molten pool shape, thermal cyc...

Titanium alloys have found increased applications in various industrial sectors. One of the critical issues in quality control is the weld penetration during welding. In the present paper, tungsten inert gas (TIG) welding of Ti-6Al-4V alloy with and without an activating flux was conducted. The effect of the activating flux on Ti alloy welding was investigated. A data acquisition system was use...

Abstract The friction stir processing (FSP) technique was employed on the AA6082-AA8011 TIG-welded joints to investigate contribution of conditions microstructure and mechanical properties processed joints. were subjected FSP under normal submerged conditions. tests conducted included microstructural analysis, tensile, Vickers hardness fracture surface analysis. analysis showed minimum average ...

The aim of this study is to fabricate in-situ TiC particle reinforced Fe matrix composites via volume combustion synthesis (VCS) through heating by two different sources. One group reactant pellets was ignited in an induction furnace (IF). other using a tungsten inert gas (TIG) torch. Thus, the differences microhardness and microstructure obtained could be compared. Fe, C Ti elemental powders w...