SLIP AND THE CONCEPTION OF SPLITTING OF DISLOCATIONS IN b.c.c. METALS

The specific features of the slip geometry in b.c.c. metals are reviewed. The properties of sessile and glissile splittings of screw dislocations on both {110} and {112} planes are then discussed and a dislocation theory of the slip geometry in b.c.c. metals, based on thermally activated sessile–glissile transformations of screw dislocations to different {110} and {112} planes, is introduced.