Oxidation behavior of alumina-forming austenitic steel

Kinga A. Unocic, Michael P. Brady, Bruce A. Pint, Aurélie Rouaix-Vande Put

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Alumina-forming austenitic (AFA) stainless steels exhibit a unique combination of high temperature creep strength and corrosion resistance. By forming a protective alumina scale, AFA steels exhibit significantly better corrosion resistance than conventional, chromia-forming stainless steels and even Ni-base alloys. To illustrate the oxidation resistance of AFA steel, laboratory exposures are presented in several environments at 550°-900°C including (1) wet air to simulate exhaust gas for thin-walled heat exchangers, (2) steam for power generation applications and (3) high C activities with and without water vapor at 1-16 bar (100-1600 kPa) for the chemical process industry. Oxidation rates for AFA were compared to conventional candidate alloys as well as other Fe- and Ni-base alumina-forming alloys. The reaction products on AFA steel have been characterized using a range of low- to high-resolution analytical techniques.

Original languageEnglish
Title of host publicationNACE International - Corrosion 2013 Conference and Expo
StatePublished - 2013
EventCorrosion 2013 - Orlando, FL, United States
Duration: Mar 17 2013Mar 21 2013

Publication series

NameNACE - International Corrosion Conference Series
ISSN (Print)0361-4409

Conference

ConferenceCorrosion 2013
Country/TerritoryUnited States
CityOrlando, FL
Period03/17/1303/21/13

Keywords

  • Alumina scale
  • High temperature oxidation
  • Metal dusting
  • Steam
  • Water vapor

Fingerprint

Dive into the research topics of 'Oxidation behavior of alumina-forming austenitic steel'. Together they form a unique fingerprint.

Cite this