A Study of the Initial Stages of Oxidation of Yttrium Implanted Chromium Using X-Ray Diffraction and Absorption Spectroscopy
The beneficial effect of the addition of yttrium by ion implantation on the oxidation behaviour of chromium has been studied. Emphasis was placed on the initial stages of oxidation during rapid heating to 900 C. Characterisation of the surface layers was carried out with two X-ray techniques at glancing angles. The short range structure of two yttrium rich oxides, Y2O3 and YCrO4, was observed. The latter is believed to represent the structure around yttrium segregated to the oxide grain boundaries. The Y2O3, present as particles, is expected to play only an indirect role by forming a source of yttrium which is slowly segregating to the grain boundaries.
CRISTOBAL Maria Julia;
GIBSON Peter Neil;
STROOSNIJDER Marinus Frederik;
Cristobal M, Gibson P, Stroosnijder M. A Study of the Initial Stages of Oxidation of Yttrium Implanted Chromium Using X-Ray Diffraction and Absorption Spectroscopy. Corrosion Science 38; 1997. p. 805-822. JRC13680
1996-08-07
JRC13680
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