Pressure-Solution and Crystallization Deformation

摘要: Pressure-solution and associated crystallization are subclasses of a diffusive mass transport process which involves diffusion in grain boundary pore solutions. The manner they give rise to permanent deformation is examined three steps: (a) A simplified reversible non-hydrostatic crystal-solution thermodynamic criterion (first order, 2-components) based on Gibbs provides manageable basis for determining the direction will run (regions dissolution or growth) stressed porous, non-porous, closed open systems. (b) Considerations irreversible indicate certain restrictions displacements accompanying growth hence form solution-transfer strain rate tensor. (c) way develops, its rate, governed by kinetic factors, especially kinetics. As well as having an exponential dependence stress, displacement influenced absolute temperature, diffusivity, initial solubility geometric scale.