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TEM characterization of the fine scale microstructure of a Roman ferrous nail

Published online by Cambridge University Press:  11 June 2010

J. Douin ,
O. Henry ,
F. Dabosi  and
P. Sciau
J. Douin
Affiliation:
CNRS; CEMES; BP 94347, 29 rue J. Marvig, 31055 Toulouse, France Université de Toulouse; UPS, INSA, CEMES, 31055 Toulouse, France
O. Henry
Affiliation:
CNRS; CEMES; BP 94347, 29 rue J. Marvig, 31055 Toulouse, France Université de Toulouse; UPS, INSA, CEMES, 31055 Toulouse, France
F. Dabosi
Affiliation:
CIRIMAT, ENSIACET, INPT, 4 allée Émile Monso, BP 74233, 31432 Toulouse Cedex 4, France TRACES, UMR 5608, Université de Toulouse-Le Mirail, 31058 Toulouse, France
P. Sciau*
Affiliation:
CNRS; CEMES; BP 94347, 29 rue J. Marvig, 31055 Toulouse, France Université de Toulouse; UPS, INSA, CEMES, 31055 Toulouse, France
*
sciau@cemes.fr
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Abstract

This paper describes the microstructure of a Roman ferrous nail through its observation by transmission electron microscopy. The morphologies of pearlitic colonies and ferritic grains are detailed and the relationship between pearlitic colonies and ferrite in Roman nails is explicitly demonstrated for the first time. Observations also confirm the presence of dislocations in ferritic grains and attest to the existence of very small carbide precipitates that have not been pointed out previously in standard archaeometric studies.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 51 , Issue 1 , July 2010 , 10902
Copyright
© EDP Sciences, 2010

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