Milan Pudar

TL;DR: In this paper, a laser-assisted bi-metal-wire welding process was proposed to join zinc-coated steel sheets with aluminum samples in an overlapping as well as in a butt-joint configuration.

TL;DR: In this paper, a new methodology for modeling precipitation in cast steel is proposed, which consists of two parts: First, a Scheil-Gulliver simulation, which is carried out to obtain information on the amount of microsegregation during solidification, and then, based on this information, two precipitation kinetics simulations are performed: One with the chemical composition representative for the solute-poor core of the secondary dendrite arms, the other with the composition of the residual liquid at a fraction of 5%, corresponding to the segregated soluterich interdendritic regions.

TL;DR: In this article, the precipitation of carbides and nitrides in Nb-microalloyed steel is investigated experimentally and theoretically using light optical, scanning and transmission electron microscopy, and the thermokinetic software MatCalc.

TL;DR: In this paper, the historical development of materials and applied welding procedures in the field of hydropower plant shafts and penstocks is summarized, based on the experiences and failure cases observed in the past in combination with modern methods.