Cu effects on radiation embrittlement of Ni-containing complex model alloys and the related potentials of the thermoelectric method

One of the major damage contributions to radiation embrittlement of steels is due to copper precipitation. Precipitation mechanism continues until saturation depending on available amount of precipitants, copper concentration in particular. At the JRC-IE measurement of thermoelectric voltage using a...

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Bibliographic Details
Published in:NDT & E international : independent nondestructive testing and evaluation 2004-06, Vol.37 (4), p.321-324
Main Authors: Acosta, B, Debarberis, L, Sevini, F, Kryukov, A
Format: Article
Language:English
Subjects:
Embrittlement mechanisms model
Radiation damage
Thermoelectric properties
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Summary:One of the major damage contributions to radiation embrittlement of steels is due to copper precipitation. Precipitation mechanism continues until saturation depending on available amount of precipitants, copper concentration in particular. At the JRC-IE measurement of thermoelectric voltage using a specially developed non-destructive method to assess the embrittlement state of materials are regularly performed. The results analysis, from the test of complex sets of nickel containing alloys with different copper content levels, for both fresh and irradiated conditions, are discussed in this paper with the aim of identifying, if copper precipitation to saturation can be followed by non-destructive measurements. The findings are promising showing that the STEAM non-destructive method has very high potential for studying the copper kinetics part in the radiation embrittlement phenomenon.
ISSN:0963-8695
1879-1174
DOI:10.1016/j.ndteint.2003.10.010