Steady state power-law creep in heterogeneous alloys with coarse microstructures

Abstract

In many heterogeneous engineering alloys of a relatively coarse phase distribution where non-local effects due to such phases are unimportant and where inelastic deformation inside these phase domains can be appropriately viewed by continuum concepts, the overall steady creep behavior of the alloy can be obtained by the use of the well-known self-consistent theory for polycrystals and composites, in a piece-wise linear and incremental approach—provided the creep constitutive behavior for each of the constituent phases is known.