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The constitution of martensite volume fraction in Fe-31wt%Ni-0.02wt%C

Research paper by José Roberto Costa Guimarães, Paulo Rangel Rios

Indexed on: 01 Mar '18Published on: 26 Dec '17Published in: Journal of Materials Research and Technology



Abstract

Publication date: Available online 23 November 2017 Source:Journal of Materials Research and Technology Author(s): José Roberto Costa Guimarães, Paulo Rangel Rios This paper analyzes the constitution of martensite volume fraction, that is, the size-distribution of martensite units in quenched-transformed austenite in the microstructure. We correlate this distribution to the martensite shape-strain relaxation. The modes of relaxation athermal/auto-accommodation or thermal-activated dislocation mobility and the sequential formation of the martensite units control the variation of the mean martensite unit volume as well as the uniformity of the transformation.