@inproceedings{760f8bf35cf04b67b01d5992b7c60943,
title = "The effect of impurities on supercritical CO2 compatibility of structural alloys",
abstract = "In both direct- and indirect-fired supercritical CO2 (sCO2) cycles, there is considerable interest in increasing the size and efficiency of such systems, perhaps by increasing the peak temperature to >700°C. However, relatively little experimental data are available under these conditions with pressures of 200-300 bar. Furthermore, impurities such as O2 and H2O in the CO2 may greatly alter the compatibility of structural alloys in these environments. While an experimental rig is being constructed that can measure and control the impurity levels in sCO2 at 200-300 bar, initial 1 bar experiments at 700°-800°C for 500 h have been conducted in high-purity and industrial grade CO2, CO2+0.15O2 and CO2+10\%H2O and compared to exposures in dry air and 200 bar sCO2. These results, focusing on Fe- and Ni-base structural alloys and commercial chromia- and alumina-forming alloys, indicate that modifications in the environment did not strongly affect the reaction products at 700°-800°C.",
author = "Pint, \{B. A.\} and Brese, \{R. G.\} and Keiser, \{J. R.\}",
note = "Publisher Copyright: Copyright {\textcopyright} 2016 Electric Power Research Institute, Inc.; 8th International Conference on Advances in Materials Technology for Fossil Power Plants ; Conference date: 11-10-2016 Through 14-10-2016",
year = "2016",
language = "English",
series = "Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference",
publisher = "ASM International",
pages = "844--854",
editor = "John Shingledecker and J. Siefert and Jonathan Parker",
booktitle = "Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference",
}