Development, optimisation and qualification of welding additive manufacturing procedures to date have largely been undertaken on an experimental trial error basis, which imposes significant costs. Numerical simulations are acknowledged as a promising alternative experiments, can improve the understanding complex process behaviour. In present work, we propose simulation-based approach study char...

Directed energy deposition (DED) with laser and powder allows the manufacturing of multi-metallic near net shape structures, control over feedstock composition intense liquid mixing elements. To better understand multi-physical aspects melt pool strive toward local prediction, a 3D finite element model chromium on stainless steel has been developed. A modified v2-f is implemented to investigate...

The aim of this work was to synthesize TiC reinforced coating on carbon steel via reduction of ilmenite powder. A mixture of ilmenite and graphite was pre-placed on AISI 1020 steel surface. The effect of the addition of excess graphite amounts on the progress of synthesis of carbide particles was studied. The evolution of phases in different coatings was analysed via X-ray diffraction and scann...

Laser beam welding is a contact free fusion technique which has gained importance during the last years due to rising need for automatization in industrial processes. However, well-known problem formation of solidification cracks rear region melting pool. In order investigate highly dependent on chemical composition, speed, weld intensity and resulting temperature gradient material, modeling la...

Wire-arc additive manufacturing (WAAM) technology has been widely recognized as a promising alternative for fabricating large-scale components, due to its advantages of high deposition rate and material utilization rate. However, some anomalies may occur during the process, such humping, spattering, robot suspend, pores, cracking so on. This study proposed apply deep learning in visual monitori...

A broad range of computational models have been proposed to predict microstructure development during solidification processing but they seldom compared each other on a quantitative and systematic basis. In this paper, we compare phase-field (PF) cellular automaton (CA) simulations polycrystalline growth in two-dimensional melt pool under conditions relevant additive manufacturing (powder-bed f...