Orientation of γ to α transformation in Xe-implanted austenitic 304 stainless steel

The phase transformation of gamma(fcc) to alpha(bcc) is observed in thin him specimens of austenitic 304 stainless steel implanted with 100 keV ions at room temperature. The orientation relationships between the induced cr(bcc) and the austenitic gamma(fcc) matrix are determined to be (0 1 (1) over bar)(alpha)//(1 (1) over bar 1), and [1 1 1](alpha)//[0 1 1](gamma). The relationship is followed by the Kurdjumov-Sachs (K-S) rule rather than the Nishiyama-Wasserman (N-W) rule in this experiment, though the latter relationship was well observed in the previously reported experiments of implantation of austenitic stainless steels with noble gases or other heavy ions. (C) 2000 Elsevier Science B.V. All rights reserved.