Oxidation behavior of GTD111 Ni-based superalloy at 900 °C in air
Oxidation behavior of GTD111 Ni-based superalloy at 900 °C in air
复制标题
GTD111镍基高温合金在900℃空气中的氧化行为
DOI：
10.1016/j.corsci.2015.07.031
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发表时间：
2015-11-01
影响因子：
8.3
通讯作者：
Zhou, Y.
中科院分区：
文献类型：
--
作者：
Brenneman, J.;Wei, J.;Zhou, Y.
The oxidation behavior of GTD111 Ni-based superalloy was investigated at 900 degrees C from 1 h to 452 h. The detailed oxide structure, from the top surface down to the base material, was clarified by modelling studies as Ni-Ti oxides, Cr-Ti oxides, Cr2O3 oxide band, Ni-W-Ta oxide and finally a blocky Al2O3 region. Internal oxide Al2O3 was discontinuous, Cr2O3 oxide dense band provided the most protection against further oxidation. Cracking and spalling of the outer oxides scale results in the nitrogen penetration into the inner oxides scale, and inner nitridation to form TiN occurs. Additionally, the oxidation mechanism was discussed by a model. (C) 2015 Elsevier Ltd. All rights reserved.
