|About this Abstract
||Materials Science & Technology 2019
||Advanced Materials for Harsh Environments
||Effect of Chromium on Corrosion Resistance of Stainless Steels in Supercritical CO2 Direct Power Cycle Environments
||Reyixiati Repukaiti, Lucas Teeter, Margaret Ziomek-Moroz, Omer Dogan, Richard Oleksak, Randal Burt Thomas, John Baltrus, Julie Tucker
|On-Site Speaker (Planned)
Corrosion resistance of alloys in heat exchangers for supercritical carbon dioxide direct power cycles is key to the design requirements of future plants. The effect of Cr content on the corrosion behavior of 400-series stainless steels was investigated in water containing CO2 and O2 simulating condensed water composition in low-temperature recuperators and coolers. The electrochemical experiments were conducted at 50°C and ambient pressure while immersion experiments were conducted at 50°C and 8 MPa for 96 hours. These results indicate that the corrosion resistance of the investigated steels increases with increasing Cr content. Surface analysis revealed formation of Cr-rich protective layers.
||Planned: At-meeting proceedings