Abstract

Abstract The oxidation behavior of two kinds of H13 steel powders were studied at different temperatures in air. Both oxidation kinetics and oxidation products were investigated, and the effect of powder particle size distribution on the powder oxidation was also evaluated. In addition, elemental and microstructural analyses were also conducted to characterize the oxide phase formation. Results showed that chromia and spinel were the main phases for both samples after oxidation for 24 h, irrespective of significant descaling.

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