Elasticity and wave velocity in fcc iron (austenite) at elevated temperatures – Experimental verification ofab-initiocalculations

    loading  Checking for direct PDF access through Ovid

Abstract

High temperature crystal elasticity constants for face centred cubic austenite are important for interpreting the ultrasonic properties of iron and steels but cannot be determined by normal single crystal methods. Values of these constants have recently been calculated using an ab-initio approach and the present work was carried out to test their applicability using laser-ultrasonic measurements. Steel samples having a known texture were examined at temperatures between 800 °C and 1100 °C to measure the velocity of longitudinal P-waves which were found to be in good agreement with modelled values.

Related Topics

    loading  Loading Related Articles