Hot corrosion and high temperature corrosion behavior of a new gas turbine material -- alloy 603GT
- Krupp VDM GmbH, Houston, TX (United States)
- Krupp VDM GmbH, Werdohl (Germany)
Salt deposits encountered in a variety of high temperature processes have caused premature failures in heat exchangers and superheater tubes in pulp and paper recovery boilers, waste incinerators and coal gasifiers. Molten salt corrosion studies in both land based and air craft turbines have been the subject of intense study by many researchers. This phenomenon referred to as ``hot corrosion`` has primarily been attributed to corrosion by alkali sulfates, and there is somewhat general agreement in the literature that this is caused by either basic or acidic dissolution (fluxing) of the protective metal oxide layers by complex salt deposits containing both sulfates and chlorides. This paper describes experimental studies conducted on the hot corrosion behavior of a new Ni-Cr-Al alloy 603GT (UNS N06603) in comparison to some commercially established alloys used in gas turbine components.
- OSTI ID:
- 351794
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
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