Vliv degradačních vlastností na svarové spoje feritických a austenitických ocelí

Abstract

The dissertation thesis is dealing with heterogeneous weld joints between austenitic and ferritic steel. Currently these joints are welded with method 111 or 141. Because of this method a lot of heat is inserted into both materials and this has a big influence to diffusion characteristics. This has an effect to basic mechanical, chemical and corrosion characteristics. Another influence to the seam has also working environment. Working environment of tested samples is at maximum 250 C. The goal of this thesis is to verify new technological specifications with high energy welding methods. These methods minimize the heat influence of welding.