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Carbo-Nitride Precipitation in Tempered Martensite - Computer Simulation and Experiment

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Abstract:

In the present work, the precipitation behavior of a V-microalloyed, quenched and tempered steel with 0.3wt % C is investigated experimentally and by computer simulation. The specimens are analyzed by means of transmission electron microscopy using selected area diffraction (SAD) and energy dispersive x-ray spectroscopy (EDX). The analysis is done on electropolished foils and on extraction replica. The numerical simulation is performed with the thermokinetic software package MatCalc, where the precipitation kinetics is examined for the experimentally applied thermo-mechanical cycles. Good agreement between experiment and simulation is obtained and the experimentally observed precipitate microstructure can be well explained on the basis of these simulations.

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Periodical:

Materials Science Forum (Volumes 706-709)

Pages:

1586-1591

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.706-709.1586

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Online since:

January 2012

Authors:

Sabine Zamberger, Ernst Kozeschnik

Keywords:

Precipitation Kinetics, Q and T Steel, Tempered Martensite

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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