Characterization of the Interaction of the Interstitial Atoms with the Substitutional Atoms and with the Dislocations in Extra-Mild Steels through Coupled Use of Thermoelectric Power and Internal Friction Measurements

Véronique Massardier-Jourdan; E. Le Patézour; F. Thiery; N. Lavaire; Jacques Merlin

doi:10.4028/www.scientific.net/MSF.500-501.623

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Characterization of the Interaction of the Interstitial Atoms with the Substitutional Atoms and with the Dislocations in Extra-Mild Steels through Coupled Use of Thermoelectric Power and Internal Friction Measurements
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HomeMaterials Science ForumMaterials Science Forum Vols. 500-501Characterization of the Interaction of the...

Characterization of the Interaction of the Interstitial Atoms with the Substitutional Atoms and with the Dislocations in Extra-Mild Steels through Coupled Use of Thermoelectric Power and Internal Friction Measurements

Abstract:

In Fe-C-Mn steels, the carbon atoms in solution can be either completely free in the iron matrix or in interaction with manganese atoms. In this context, a methodology based on the combined use of thermoelectric power and internal friction measurements was developed in order to evaluate quantitatively these two populations of carbon atoms. This methodology was used to determine the binding energy of the C-Mn dipoles and to follow the precipitation kinetics of the two populations of carbon atoms and/or their segregation kinetics to the dislocations during an isothermal treatment. Lastly, the influence of each population of carbon atoms on the strain aging of extra-mild steels was discussed.

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Periodical:

Materials Science Forum (Volumes 500-501)

Pages:

623-630

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.500-501.623

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Online since:

November 2005

Authors:

Véronique Massardier-Jourdan, E. Le Patézour, F. Thiery, N. Lavaire, Jacques Merlin

Keywords:

Binding Energy, Internal Friction, Steel, Strain Aging, Thermoelectric Power

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