TECHNOLOGIES
STUDY OF EFFECT OF INITIAL AND SUBSEQUENT HEAT TREATMENT OF CON-STRUCTIONAL STEELS ON PROPERTIES OF JOINT WELDS PRODUCED BY ELECTRON BEAM WELDING
- 1 Physical-technical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus
Abstract
The effect of modes of electron beam welding on geometry of joint welds of constructional steels has been analyzed using steel 40X as an example. Microstructure and microhardness distribution in joint welds have been investigated. Necessity of preheating and subsequent heat treatment of metal in order to avoid hot cracking at electron beam welding has been determined.