Fig. 1

(a) Different tetrahedral interstitial sites (T1–T4) in the bcc Fe–Cr/Ni system. (b) Different octahedral interstitial sites (O1–O5) in bcc Fe–Cr/Ni system.
(a) Different tetrahedral interstitial sites (T1–T4) in the bcc Fe–Cr/Ni system. (b) Different octahedral interstitial sites (O1–O5) in bcc Fe–Cr/Ni system.