In situ observation of oxide scale formed on heat-resistant alloys using a scanning laser microscope

Tadaaki AMANO; Kazuhiko KANZAKI; Shigekazu SUGOH; Tomoya TAKATSU; Atsushi SHIMOKAWA

doi:10.2978/jsas.10.2-3_188

Tadaaki AMANO, Kazuhiko KANZAKI, Shigekazu SUGOH, Tomoya TAKATSU, Atsushi SHIMOKAWA

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Keywords: In situ observation, Laser microscope, Sulfur, Spalling of oxide, Fe-Cr-Al alloy, Oxidation

JOURNAL FREE ACCESS

1998 Volume 10 Issue 2-3 Pages 188-190

DOI https://doi.org/10.2978/jsas.10.2-3_188

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Abstract

The formation of oxide on Fe-20Cr-4Al alloy with 35ppm of sulfur was observed in situ during heating-up at up to 1573K using a scanning laser microscope. Spalling of oxide scale on the alloy was also recognized along the alloy grain boundary at 668K during cooling from 1573K to room temperature after oxidation at 1573K for 18.0ks in air.

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