| Abstract: | The process of corrosion of composite welded joints of 20 steel and 08Kh18N9T stainless steel produced by manual argon-arc welding is investigated by electrochemical methods. It is shown that a contact galvanic couple is formed in the zone of the welded joint and, as a result, the surface of 20 steel in the vicinity of the weld turns into the anode and intensely corrodes. For this reason, composite welded joints should not be used in heart-power engineering. Odessa State Academy of Food Technologies, Odessa. Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 32, No. 6. pp. 33–36, November–December, 1996. |
