caa a22 4500 445843942 CHVBK 20180317145353.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11085-011-9233-y doi (NATIONALLICENCE)springer-10.1007/s11085-011-9233-y Corrosion of Cr2AlC in Ar/1%SO2 Gas Between 900 and 1200°C [Elektronische Daten] [Dong Lee, Thuan Nguyen, Sang Park] Cr2AlC compounds were synthesized by a powder metallurgical route and corrosion tested at 900, 1000, 1100 and 1200°C for up to 150h under an Ar/1% SO2 gas atmosphere. The compounds were resistant to corrosion because a thin α-Al2O3 barrier layer quickly formed on the surface which suppressed sulfidation. Virtually no sulfur was detected inside the scale except during the initial corrosion stage. The superior corrosion resistance of Cr2AlC originated from the high affinity of Al for oxygen to form the thermodynamically stable Al2O3. Unlike Al, Cr was not active because Cr was strongly bound to carbon as Cr2C layers in Cr2AlC. The small amount of Cr2O3 that had formed was dissolved in the Al2O3 layer. The corrosion of Cr2AlC resulted in the formation of an α-Al2O3 layer and an underlying Cr7C3 layer. Springer Science+Business Media, LLC, 2011 Cr2AlC nationallicence SO2 nationallicence Oxidation nationallicence Sulfidation nationallicence Lee Dong School of Advanced Materials Science and Engineering, Sungkyunkwan University, 440-746, Suwon, South Korea aut Nguyen Thuan School of Advanced Materials Science and Engineering, Sungkyunkwan University, 440-746, Suwon, South Korea aut Park Sang Functional Materials Center, KIST, 136-791, Seoul, South Korea aut Oxidation of Metals Springer-Verlag 75/5-6(2011-06-01), 313-323 0030-770X 75:5-6<313 2011 75 11085 https://doi.org/10.1007/s11085-011-9233-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11085-011-9233-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Dong School of Advanced Materials Science and Engineering, Sungkyunkwan University, 440-746, Suwon, South Korea aut NATIONALLICENCE 700 1- Nguyen Thuan School of Advanced Materials Science and Engineering, Sungkyunkwan University, 440-746, Suwon, South Korea aut NATIONALLICENCE 700 1- Park Sang Functional Materials Center, KIST, 136-791, Seoul, South Korea aut NATIONALLICENCE 773 0- Oxidation of Metals Springer-Verlag 75/5-6(2011-06-01), 313-323 0030-770X 75:5-6<313 2011 75 11085 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer