@article{7eac66096053457882df3b6137a673a8,
title = "Oxidation behaviour of a novel refractory high entropy alloy at elevated temperatures",
abstract = "The refractory high entropy alloy (RHEA) has shown great potentials for high temperature applications beyond modern Ni-based superalloy. However, its oxidation behaviours are rarely reported and understood. In this work, the oxidation behaviours of a novel RHEA “NV1”, Cr-17.6Al-20.3Mo-15.2Nb-2.9Si-13.4Ta-5.4Ti (in at%), were examined at 1200, 1300, and 1400 °C up to 100 h. At 1200 °C, the oxidation kinetics curve yielded toward parabolic behaviour owing to the formation of a rutile-type complex oxide layer with Al2O3 and Cr2O3 dispersions; breakaway oxidation contributed by Cr2O3 evaporation occurred at 1300 °C; a single power-law behaviour governed the oxidation kinetics curve at 1400 °C, and mullite was identified within the oxide layer. This work provides guidelines for understanding the oxidation mechanisms and improving oxidation resistance of RHEA at elevated temperature.",
keywords = "Corrosion, High–entropy alloys, Microstructure, Oxidation, Segregation, Surface properties",
author = "Lo, {Kai Chi} and Hideyuki Murakami and Yeh, {Jien Wei} and Yeh, {An Chou}",
note = "Funding Information: This study was a collaboration between National Tsing Hua University, Taiwan and National Institute for Materials Science (NIMS), Japan. This work is supported by NIMS under the International Cooperative Graduate Program; Ministry of Science and Technology (MOST) in Taiwan under Grant MOST106-2923-E-007-002-MY2 , MOST107-2218-E-007-012 , and MOST107-3017-F-007-003 ; and the “High Entropy Materials Center” from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education . Funding Information: This study was a collaboration between National Tsing Hua University, Taiwan and National Institute for Materials Science (NIMS), Japan. This work is supported by NIMS under the International Cooperative Graduate Program; Ministry of Science and Technology (MOST) in Taiwan under Grant MOST106-2923-E-007-002-MY2, MOST107-2218-E-007-012, and MOST107-3017-F-007-003; and the “High Entropy Materials Center” from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2020",
month = apr,
doi = "10.1016/j.intermet.2020.106711",
language = "English",
volume = "119",
journal = "Intermetallics",
issn = "0966-9795",
publisher = "Elsevier Limited",
}