High-temperature oxidation of Al2O3-forming heat-resistant alloys purified by floating zone melting

Tadaaki AMANO; Takumi NAKAMURA; Toyokazu YOSHIMURA; Akihiro UJITA; Akira HARA; Naoki SAKAI; Takamasa SUGAWARA

doi:10.2978/jsas.12.92

High-temperature oxidation of Al₂O₃-forming heat-resistant alloys purified by floating zone melting

Tadaaki AMANO, Takumi NAKAMURA, Toyokazu YOSHIMURA, Akihiro UJITA, Akira HARA, Naoki SAKAI, Takamasa SUGAWARA

Author information

Keywords: Fe-20Cr-4Al, Sulfur, Oxidation, Floating zone melting, Oxide adherence

JOURNAL FREE ACCESS

2000 Volume 12 Issue 1-2 Pages 92-94

DOI https://doi.org/10.2978/jsas.12.92

Details

Abstract

High-temperature oxidation of Fe-20Cr-4Al alloy purified by floating zone melting was studied for 360ks in air at 1373, 1473, 1573 and 1673K. Oxide adherence of the alloys purified by froating zone melting was improved. Mass changes of 0.99, 1.23, 1.84 and 3.88ppmS alloys increased with increasing temperature of oxidation. Mass change of 3.88ppmS alloy showed the smallest values at any temperatures of oxidation because of spalling of oxide scales on the alloy.

Corresponding author

Register with J-STAGE for free!