The effect of the cold plastic deformation rate on intermetallics dissolution intensity in austenitic Fe-Ni-Me (Me = Ti, Al, Zr, Si) alloys

摘要

A Mossbauer spectroscopic analysis showed that deformation-induced dissolution of particles of inter-metallic Ni_3Me (Me = Al, Ti, Zr, Si) phases in matrices of aged austenitic Fe-Ni-Me alloys accelerated with growing rate of compression-shear cold deformation in Bridgman anvils. An increase in the deformation rate and a curtailment of the deformation time was followed by an increase in the slope of the curve showing the deformation dissolution of intermetallics since the alternative process of the intermetallics precipitation was impeded. It was shown that a decrease in the deformation rate caused an increase in the incubation period of deformation required for dissolution of the particles to begin.