Performance of chromia- and alumina-forming Fe- and Ni-base alloys exposed to metal dusting environments: The effect of water vapor and temperature
Fe- and Ni-base alloys including an alumina-forming austenitic alloy were exposed for 500 h under metal dusting environments with varying temperature, gas composition and total pressure. For one H 2–CO–CO 2–H 2O environment, the increase in temperature from 550 to 750 °C generally decreased metal dusting. When H 2O was added to a H 2–CO–CO 2 environment at 650 °C, the metal dusting attack was reduced. Even after 5000 h at a total pressure of 9.1 atm with 20%H 2O, the higher alloyed specimens retained a thin protective oxide. Lastly, for gas mixtures containing little or no H 2O, the Fe-base alloys were less resistant to metal dusting than Ni-base alloys.
- Univ. de Toulouse, Toulouse (France)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division, High Temperature Materials Lab.
- Publication Date:
- OSTI Identifier:
- Grant/Contract Number:
- Accepted Manuscript
- Journal Name:
- Corrosion Science
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: C; Journal ID: ISSN 0010-938X
- Research Org:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Country of Publication:
- United States
- 36 MATERIALS SCIENCE; 54 ENVIRONMENTAL SCIENCES
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