Abstract. This study is focused on understanding the effects of key process parameters onset recrystallisation coarse, elongated, and dendritic grains as-cast microstructure during ingot-to-billet conversion, consisting successive cogging, upsetting, reheating operations, in type 316 austenitic stainless steel. The microstructural characteristics initial ingot (e.g., size, orientation morpholog...

This study focuses on the impact of solidification inclusion morphologies in different sizes production-scale electro-slag remelting (ESR) and under a protected pressure-controlled atmosphere, (PESR), ingots, common martensitic stainless steel grade. The investigation has been carried out to increase knowledge change during ESR PESR remelting. In order optimize process routes for grades, it is ...

This work aims to contribute the understanding of mechanisms behind electrically active crystalline defect formation in cast-mono (cm) ingots grown along <001> axis. Both spatial distributions background dislocations cellular dislocation array and driving force for multiplication sub-grains are not perfectly understood. Macroscale length crystal rotations here characterized by (θ/2θ) X-ray diff...

The presence of the eutectic phase (delta ferrite + M23C6) in martensitic stainless steels brings significant deterioration in-service mechanical properties critical components such as turbine shaft made these alloys. In present study, thermodynamic and kinetics formation during solidification reheating stages before forging a large size X38CrMo16 steel ingot are investigated. Material characte...

Abstract: Production of titanium aluminides in TiO2-Al-Ca system has been investigated. For this purpose, different compositions of raw materials were studied in a special reaction vessel. In a special case, the non-completed reaction of TiO2 with Al and Ca resulted in the production of granulates of titanium aluminides especially Ti3Al and other Ti – Al phases as the metallic product and C...