Accession Number : AD0618120

Title :   THE MARTENSITIC TRANSFORMATION IN PURE IRON,

Corporate Author : ALBERTA UNIV EDMONTON DEPT OF MINING AND METALLURGY

Personal Author(s) : Bibby,M. J. ; Parr,J. Gordon

Report Date : 16 MAY 1963

Pagination or Media Count : 6

Abstract : High-rate quenching experiments have established that iron containing less than 0.0017%C transforms martensitically at 750C at cooling rates in excess of 35 000 degC/s. M(s) falls to 540C, and the critical quenching speed is lowered to 5 000 degC/s when the carbon content is increased to a figure between 0.005 and 0.01%. Two hypotheses are offered to rationalize the effect of carbon, and Crussard's shock-wave model of the martensitic transformation is extended. (Author)

Descriptors :   (*TRANSITION TEMPERATURE, MARTENSITE), (*IRON, MARTENSITE), (*MARTENSITE, IRON), TRANSFORMATIONS, TRANSITION TEMPERATURE, METALLOGRAPHY, QUENCHING, CARBON, HARDNESS, PHASE STUDIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE