Plastic creep flow effects in the diffusive cavitation of grain boundaries Academic Article uri icon

abstract

  • The authors analyze the growth of cavities along grain interfaces by the combined processes of grain boundary diffusion and plastic dislocation creep in the adjoining grains. The coupling between the processes can be expressed in terms of a parameter L, which has the dimensions of length and which is a function of material properties, temperature and applied stress. Cavity growth rates are presented for a wide range of ratios of L to cavity spacing, and of cavity radius to spacing. Results are also presented for the total growth time from an initial size to final coalescence.

published proceedings

  • Acta Metallurgica

author list (cited authors)

  • Needleman, A., & Rice, J. R

citation count

  • 484

complete list of authors

  • Needleman, A||Rice, JR

publication date

  • October 1980