Effects of Al additions on sulfidation resistance of some Fe-Cr-Ni alloys
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All
i


Effects of Al additions on sulfidation resistance of some Fe-Cr-Ni alloys

Filetype[PDF-8.41 MB]


Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
  • English

  • Details:

    • Description:
      "The objective of this research by the U.S. Bureau of Mines was to determine the effects of al additions on the sulfidation resistance of fe-cr-ni alloys. A series of fe-cr-ni alloys with and without additions of 4 pct al were tested in a wet s vapor atmosphere at 677 deg c. A study of the morphology and composition of corrosion scales indicated a different corrosion mechanism for al-free alloys compared with al-containing alloys. Aluminum-containing alloys formed a compact, tightly adherent layer at the metal-scale interface that reduced corrosion rates by a factor of 3 to 10 compared with that of al-free alloys. The thin, adherent al- containing scale limited inward diffusion of o and s to the base metal and outward diffusion of ni from the base metal. Aluminum- containing alloys formed a three-layer scale on oxidizing-s environments, while al-free alloys formed a less protective two- layer scale." - NIOSHTIC-2 NIOSHTIC no. 10007339
    • Document Type:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at stacks.cdc.gov