Strain hardening of porous iron during uniaxial compession

摘要

A series of experiments for sintered iron (porosity 1-40 %) including deformation by compression up to various degrees of strain is executed. The analysis of strain hardening curves is carried out. No practical effect of the change of uniaxial loading sign on strain hardening laws of solid phase is established. However, this change essentially effects on the porosity contribution in loading curve formation.