M. Michiuchi, H. Kokawa, K. Sakai, Graduate School of Engineering, Tohoku University, Sendai, Japan; Z. J. Wang, Y. S. Sato, Tohoku University, Sendai, Japan

Summary: The corrosion rate of grain boundary engineered 316 stainless steel was lower than one-fourth of base material. The high intergranular corrosion resistance of grain boundary engineered 316 stainless steel was due to extremely higher frequency of coincidence site lattice boundaries and consequent discontinuity of random boundary network.