Studium technologické tvařitelnosti oceli 25CrMo4

Abstract

This graduation thesis is concerned with the cause of arising of internal unintegrity and of foundation of suitable temprature for rolling the steel 25Cr Mo4. The theoretical part of this graduation thesis is oriented on chosen factors influenced by formability of material oriented on metallurgical and thermomechanical effects. Further on there have been described individual tests of formability in the warmth, division of primary Cr - Mo steel and on possibility of arisen of errors. The experimental part of this graduation thesis involved in making androlling of wedging samples. Next the samples have been ground down and submitted to metalographical analysis for visibility of microstucture material.