Ny. Zolotorevskii et al., DETERMINATION OF RESIDUAL-STRESSES IN BCC METALS SUBJECTED TO DEEP AXISYMMETRICAL DEFORMATION, Industrial laboratory, 60(12), 1994, pp. 722-727
The effect of the plastic anisotropy of a bce lattice on residual stre
sses was analyzed in deep drawing of the material. It is shown that te
nsile stresses in the [001] direction and compressive stresses in the
[110] direction arise in individual crystallites when the [110] axis c
oincides with the axis of deformation. These stresses, called mesostre
sses, cause the nonlinearity of the dependence of d(hkl) On sin(2) psi
that observed in cold-drawn steels. The dependences calculated for th
e {211}, {310}, {220}, and {200} reflections agree with experimental d
ata. The method proposed provides for the evaluation of residual macro
stresses and residual mesostresses that are active on the scale of ind
ividual crystallites in metals and alloys with a hoc lattice that have
undergone a deep axisymmetric deformation.