Control of Structure and Properties of Welded Connections of Alloy Steels by Application Highly Concentrated Pulse Energy Actions

We appraised welding modes influence on corrosion resistance of welded joints of the alloyed steels in this paper. Influence of frequency characteristics of the current on structure steel welded joints obtained by stationary modes and pulse change of their power parameters is investigated. It is established that at reduction of current frequency the structure is crushed. The conducted researches have shown that at use of pulse welding mode the mechanism of corrosion interaction of welded joints of low-alloy steels in hydrochloric acid changes: instead of intergranular corrosion proper to joints after a stationary mode pitting corrosion occurs.