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Early Stages of Carbon Segregation and Precipitation in a Σ = 5 (310)[001] Molybdenum Tilt Boundary

Published online by Cambridge University Press:  09 January 2003

Jean-Michel Pénisson  and
Maria Bacia
Jean-Michel Pénisson
Affiliation:
Département de Recherches Fondamentales sur la Matière Condensée, CEA-Grenoble, 17 Avenue des Martyrs, 38054 Grenoble Cedex 9, France
Maria Bacia
Affiliation:
Ecole Nationale Supérieure des Mines, 158 Cours Fauriel, 42023 Saint Etienne Cedex, France Maria Bacia is now at CNRS Laboratoire de Cristallographie, BP 166 avenue des Martyrs, 38042 Grenoble Cedex 9, France
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Abstract

A Σ = 5 (310)[001] tilt grain boundary in molybdenum has been annealed at high temperature in the presence of carbon and observed in high-resolution electron microscopy. The carbon is located at the grain boundary in a 1-nm slab. Two different morphologies coexist. The first one is a grain boundary precipitation while the second one can be considered as a segregation.

Keywords

grain boundariesHREMsegregation
Type
A SYMPOSIUM IN HONOR OF PROFESSOR GARETH THOMAS
Information
Microscopy and Microanalysis , Volume 8 , Issue 4 , August 2002 , pp. 305 - 311
Copyright
2002 Microscopy Society of America

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