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High‐Temperature Initial Oxidation Behavior in LDX 2101
Author(s) -
Zhang Yong,
Shi Aijuan,
Liang Ping,
Wang Jian,
Meng Haojie,
Zhang Caili,
Zhang Zhuxia,
Han Peide
Publication year - 2018
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201800083
Subject(s) - materials science , oxide , scanning electron microscope , raman spectroscopy , analytical chemistry (journal) , ferrite (magnet) , manganese , austenite , chromium , spectroscopy , optical microscope , metallurgy , microstructure , chemistry , optics , composite material , physics , chromatography , quantum mechanics
High‐temperature initial oxidation behavior at 1000 °C in LDX 2101 oxidized in a closed element is studied. The samples are investigated using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, glow discharge optical emission spectroscopy, and Raman spectra. Results show differences in morphology and development of oxides on the two phases. In the initial stage, the oxide on austenite is granular, whereas that on the ferrite region is homogeneous. However, the entire surface is full of chromium oxide. In the austenite phase, oxide gradually changes from Fe 2 O 3 to Cr 2 O 3 . By contrast, oxide transforms from Mn 2 O 3 to Fe 2 O 3 and then to Cr 2 O 3 in the ferrite phase. In addition, manganese enrichment is observed in the entire oxidation process.