Metal dusting behavior of high-temperature alloys

Conference · Mon Nov 01 00:00:00 EST 1999

OSTI ID:696909

Baker, B A; Smith, G D ^[1]

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1. Special Metals Corp., Huntington, WV (United States)

The corrosion behavior of ferritic, stainless steel, iron-nickel-chromium and nickel-base alloys was investigated in H{sub 2}-80 % CO at 621 C. Mass change and rate of mass loss, pit depth progression rate and pit distribution were monitored and recorded. It was found that wastage rates and pit depth progression rates were generally much lower for nickel-base alloys than iron-base alloys. Pit depth did not necessarily correlate with area averaged mass change rate, Chromium, silicon and aluminum additions were found to be beneficial in producing an oxide scale which reduced or prevented wastage due to metal dusting.

• OSTI ID: 696909
• Report Number(s): CONF-990401-; TRN: IM9946%%295
• Resource Relation: Conference: Corrosion 1999 conference, San Antonio, TX (United States), 25 Apr 1999; Other Information: DN: 1 CD-ROM. Operating Systems: Windows 3.1, `95, `98 and NT; Macintosh; and UNIX; PBD: 1999; Related Information: Is Part Of Corrosion 99: Proceedings; PB: [3500] p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HEAT RESISTING ALLOYS
CORROSION
FERRITIC STEELS
STAINLESS STEELS
NICKEL BASE ALLOYS
IRON BASE ALLOYS
CHROMIUM ADDITIONS
SILICON ADDITIONS
ALUMINIUM ADDITIONS
METALLURGICAL EFFECTS
CARBURIZATION