Corrosion potential behavior of noble metal-modified alloys in high-temperature water
- General Electric Corporate Research and Development Center, Schenectady, NY (United States)
Intergranular stress corrosion cracking (IGSCC) of sensitized stainless steel (SS) components in boiling-water reactors (BWR) is a major concern. The effect of Pd or Pt additions on electrochemical corrosion potential (ECP) behavior of various alloys was investigated in 288 C water containing oxygen, hydrogen, and hydrogen peroxide. Data showed the noble-metal alloying additions improved catalytic efficiency for recombination of O{sub 2} and H{sub 2} on the surface and lowered ECP for intergranular stress corrosion cracking protection when stoichiometric excess H{sub 2} was present.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 392615
- Journal Information:
- Corrosion, Journal Name: Corrosion Journal Issue: 10 Vol. 52; ISSN 0010-9312; ISSN CORRAK
- Country of Publication:
- United States
- Language:
- English
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