Oxidation induced localized creep deformation in Zircaloy-2
Artikel i vetenskaplig tidskrift, 2014

Extensive plastic deformation in the metal underneath the oxide scale in autoclave tested Zircaloy-2 was studied using transmission electron microscopy (TEM). It was concluded that the plastic deformation is created by creep during oxidation, and is not caused by surface treatment, sample preparation or cooling from autoclave temperatures. Evidence of large strains was found in the form of dislocation tangles, dis- location patches and sub-grain formation, and also indications of twinning were found. The heavily deformed layer is around a few lm thick and no obvious difference could be seen between alloys with different strength or different oxide thickness.

Författare

Pia Tejland

Chalmers, Teknisk fysik, Materialens mikrostruktur

Hans-Olof Andrén

Chalmers, Teknisk fysik, Materialens mikrostruktur

Journal of Nuclear Materials

0022-3115 (ISSN)

Vol. 444 1-3 30-34

Styrkeområden

Energi

Materialvetenskap

Ämneskategorier

Metallurgi och metalliska material

Korrosionsteknik

Den kondenserade materiens fysik

DOI

10.1016/j.jnucmat.2013.09.020