Interactions between creep and corrosion in Alloy 800
Metallic components within or immediately adjacent to gasifiers, such as gas distributors, thermowells, transfer lines, and cyclones, are subjected to severe of temperature, pressure, and hostile multicomponent gas environments. Metallic heat exchangers/waste-heat boilers resistant to sulfidation, corrosion. and erosion in low- and medium-Btu gas environments are essential components in large-scale gasification schemes, in both dry ash and slogging type gasifiers. Components, in general. must be resistant to corrosion, erosion, and high-temperature creep. A substantial data base is needed on the mechanical properties of materials exposed to complex gas environments to provide a more viable basis for establishing long-term reliability of components. This work examines high-temperature creep of Alloy 800, a high-chromium alloy widely used in coal conversion systems, after exposure to oxygen and oxygen/sulfur mixed-gas environments over a wide temperature range. In addition, the data on the creep behavior of the alloy under various pretreatment and test-exposure conditions are used to establish performance envelopes for the alloy for service in fossil energy applications.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10150638
- Report Number(s):
- ANL/ET/CP-82281; CONF-9405143-2; ON: DE94011521
- Resource Relation:
- Conference: 8. annual conference on fossil energy materials,Oak Ridge, TN (United States),10-12 May 1994; Other Information: PBD: Apr 1994
- Country of Publication:
- United States
- Language:
- English
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