Abstract
It is generally known that varieties of phenomena occur to austenitic stainless steel when hydrogen is introduced into it by the cathodic electrolytic method. Four sorts of austenitic stainless steels SUS 39, 27, 32 and 42 (Corresponds to AISI 301 304, 316 and 310) were examined. These specimens were prepared and hydrogen was introduced into them by the electrolytic method. The F.C.C. austenite was observed as tranceformed into B.C.C. Alpha and H.C.P. Epsilon, and at the same time, interstitial compounds of nickel were recognized. The effects of elastic stresses and prestraining were also measured
