Figure 1
(a) The h.c.p. lattice of the α′-martensite. The (0002)α′ plane is shaded pink. Dashed lines delineate the edges of an equivalent c-centred orthorhombic unit cell. (b) The unit cell of the c-centred orthorhombic α′′-martensite. The magnitude of y determines the position of atoms on the (002)α′′ plane (shaded pink) along the [010]α′′ direction. (c) Two unit cells of the high-temperature b.c.c. β phase. One plane of form {110}β is shaded in pink. Dashed lines delineate the edges of an equivalent c-centred orthorhombic unit cell. |