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Meeting MS&T22: Materials Science & Technology
Symposium Resisting Degradation from the Environment: A Symposium Honoring Carolyn M. Hansson’s Research and Pioneering Experiences as a Woman in STEM
Presentation Title Corrosion of Fe-Cr-Mn Stainless Steel in Supercritical Water
Author(s) Joey Kish, Shooka Mahboubi, Yinan Jiao
On-Site Speaker (Planned) Joey Kish
Abstract Scope Corrosion of an austenitic Fe-Cr-Mn stainless steel (Nitronic® 32, N32) in supercritical water (25 MPa), relative to Fe-Cr-Ni stainless steel (Types 310 and 316L) was determined. Mass change measurements revealed N32 is less susceptible to corrosion than Type 316L, but more susceptible than Type 310 stainless steel after 500 h immersion at 550 °C. The relative difference in corrosion cab be explained by the protective ability of the oxide scales formed, which, for N32, consists of an outer Mn-rich (Mn,Cr)2O3 layer residing on a Cr-rich (Cr,Mn)3O4 inner layer, as revealed by X-ray diffraction and electron microscopy techniques. A rather significant Mn depletion zone accompanies corrosion, which transforms the near-surface region from austenite to ferrite. The suitability of Fe-Cr-Mn alloy fuel claddings for the supercritical water-cooled reactor concept is discussed within the context of the findings.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Characterization of Internal Oxidation in Alloy 690 and Model Ni Alloys
Correlating Crack Tip pH to Environment Assisted Cracking Performance in Al Alloys
Corrosion and Biocompatibility of 316L Stainless Steels Fabricated by Selective Laser Melting
Corrosion and Environmentally Assisted Cracking (EAC) Evaluation of Additively Manufactured (AM) High Strength Precipitation Hardened Steel (UNS S17400)
Corrosion of Fe-Cr-Mn Stainless Steel in Supercritical Water
Evaluating the Sensitivities of SCC Susceptibility in Stainless-steel Nuclear Waste Storage Containers
Galvanic Corrosion of Active and Passive Steel Bars with Different Area Ratios
Investigation of Crack Initiation in Hydrogen Embrittled Ni-base Alloy 725
Liquid Metal Embrittlement: Cracking Open the Disparate Mechanisms
Oxidation Behavior of Model FeCrAl Steel and APMT Alloy After Exposure in Steam
Quantifying the Environmentally Assisted Cracking Initiation and Short Crack Behavior in New Generation 7xxx Aluminium
Relating Microstructure to Environmental Degradation in Al-Mg Alloys
The Effect of Microstructural Surface States on the Corrosion of Additively Manufactured 316 Stainless Steel

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