首页|AlN-assisted internal oxidation behavior in Al-containing high Mn steels
AlN-assisted internal oxidation behavior in Al-containing high Mn steels
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NSTL
Elsevier
? 2022 Elsevier Inc.The role of AlN on the internal oxidation behavior was investigated in Al-containing high Mn steels. Accelerated internal oxidation behavior was confirmed as Al contents increased. The sequential formation of internal oxidation and AlN + γ-matrix layers on the γ-matrix was observed in Al-containing steel after the heat-treatment in air. The former AlN + γ-matrix layer was replaced with the internal oxidation layer as the oxidation progressed. The heterogeneous nucleation of MnAl2O4 on the AlN was identified in between the internal oxidation and AlN + γ-matrix layers. MnAl2O4 shows the 101ˉ0AlN//112MnAl2O4 and 0001AlN//111ˉMnAl2O4 orientation relationship with the pre-existing AlN by sharing Al atoms. The coherency between MnAl2O4 and AlN and the evolution of oxides in Al-containing high Mn steels were further discussed.
AlNHeterogeneous nucleationHigh-Mn steelInternal oxidationTransmission electron microscopy
Lee D.、Heo Y.-U.、Lee J.S.、Yim C.H.、Cho W.-T.、Lee U.、Kang M.-H.
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Graduate Institute of Ferrous and Energy Materials Technology Pohang University of Science and Technology
NSTL
Elsevier
