Structural Modifications Which Appear in the Area of Welds of Welded Structures Made of St 52.3 Steel

D. Dobrotă, Department of Engineering and Management of Technological Systems, Engineering Faculty, University “Constantin Brâncuşi” Târgu-Jiu, Romania Using metal construction made of St 52.3 steel is very large and in these conditions an area of interest to use them is represented by the equipments which w ork in diffi cult conditions. Due to the heavy conditions of such w elded structures, and also the working environment action on these welded structures, in practice it is necessary to know any structural modiĀ cation that is produced in both the base material and the Ā ller material. Research has followed in the main the analyze of structural modiĀ cations of the materials in the area of welded joints by corner, and also in the heat aff ected zone.