Reversible work hardening in alloys of cubic metals

摘要: Abstract During plastic deformation of a polycrystalline metal, if the direction straining is reversed, part work hardening developed by first mode lost in reversed straining. The difference flow stresses for and continued forward deformation, (measured at same absolute strain beyond few percent deformation), was termed “permanent softening” Orowan. In this research, possibility using magnitude softening”, τ s , as measure contribution long range internal to explored case alloys cubic metals. Dispersion hardened give relatively large values . stress system unidirectional such involves back-stresses matrix which are balanced opposing second-phase particles. Using X-ray diffraction measurements directional lattice strains, reverse required reduce average value zero, ϵ n determined number alloys. 3 observed compared with x estimated directly from residual strains present after deformation. results support idea that removal dominant factor contributing two-phase It suggested provide upper lower limit estimates back-stress hardening. On basis comparison made representative group