INFLUENCE OF THE ND-LASER IRRADIATION ON THE PHASE-COMPOSITION AND STRUCTURE OF IRON-ALLOYS

The action is studied of pulsed Nd-laser on the structure (morphology, crystallite dimensions, microdeformations, dislocation defects, densi ty, etc) and properties (microhardness, corrosion resistance, etc) of iron-containing - metallurgically and electrochemically obtained alloy s. It has been established that-laser irradiation considerably influen ces the structure parameters and the phase composition of alloys as a result of which the microhardness of the metallurgically obtained allo y ('Korat') increases about two and a half times, and that of the galv anically deposited alloy ('Ferocol') decreases by 20%. Laser irradiati on influences positively the corrosion resistance of the metallurgical ly obtained alloy, while this parameter of the galvanically deposited one is impaired, to a certain extent.