Abnormal strengthening effect after annealing of ultrafine-grained metals produced by ECAP - Nokhrin, A.V.; Chuvil’deev, V.N.; Kopylov, V.I.; Gryaznov, M. Yu.; Pirozhnikova, O.Ed.; Piskunov, A.V.; Bobrov, A.A. (Diffusion Fundamentals, 2017)