High-temperature corrosion and mechanical properties of protective scales on incoloy 800H: The influence of preoxidation and ion implantation

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Oxidation of Metals; (USA)

DOI:https://doi.org/10.1007/BF00665673· OSTI ID:6537004

Polman, E A; Fransen, T; Gellings, P J ^[1]

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1. Univ. of Twente, Enschede (Netherlands)

Coatings, obtained by preoxidation of Incoloy 800H at low PO{sub 2} show good sulfidation resistance due to the higher chromia content in the oxide scale. Yttrium-ion implantation of Incoloy 800H has also a beneficial effect on sulfidation, if preoxidation is applied. The reason for this is presumably the segregation of yttrium to grain boundaries of the oxide. Furthermore, the oxidation kinetics of Incoloy 800H are independent of the partial pressure of the oxygen. Mechanical testing of the preformed oxide scale/substrate combinations in air at 600{degree}C by means of constant-extension-rate experiments shows that preoxidation at low partial pressures of oxygen leads to earlier scale-cracking.

• OSTI ID: 6537004
• Journal Information: Oxidation of Metals; (USA), Journal Name: Oxidation of Metals; (USA) Vol. 33:1-2; ISSN 0030-770X; ISSN OXMEA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOY-FE44NI33CR21
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
CORROSION
CORROSION RESISTANT ALLOYS
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
INCOLOY 800H
INCOLOY ALLOYS
INFORMATION
ION IMPLANTATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
MECHANICAL PROPERTIES
METALS
NICKEL ALLOYS
NUMERICAL DATA
PROTECTIVE COATINGS
SULFIDATION
TI
TITANIUM ADDITIONS
TRANSITION ELEMENTS
YTTRIUM