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Thermoelectric Power Changes of Low Strength Steel Induced by Hydrogen Embrittlement Tests

Published online by Cambridge University Press:  01 February 2011

N. Mohamed-Noriega ,
E. López Cuéllar  and
A. Martinez de la Cruz
N. Mohamed-Noriega
Affiliation:
FIME, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, México.
E. López Cuéllar
Affiliation:
FIME, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, México.
A. Martinez de la Cruz
Affiliation:
FIME, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, México.
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Abstract

This work reports the thermoelectric characterization of a hydrogen embrittlement (HE) of low strength steel. Two sets of tests are performed in an electrochemical cell of H2SO4, with and without applied stress, lasting from 2 to 94 hours. Thermoelectric power (TEP) measurements are matched with ductility measurements (%RA and %EL) of samples tested in tension, as well as with microhardness measurements. Results indicate that TEP is sensitive to HE of low strength steels; the maximum variation of TEP is of ∼80nV/°C for samples tested without stress.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1243: Symposium 5 – Advanced Structural Materials , 2009 , 15
Copyright
Copyright © Materials Research Society 2010

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References

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