Surface modification for corrosion resistance

Conference · Tue Jun 01 00:00:00 EDT 1993

OSTI ID:10186040

Natesan, K

The raw gas environments that arise from coal gasification have chemical compositions that are low in pO{sub 2} and moderate-to-high in pS{sub 2}. Metallic materials for service in such an environment undergo predominantly sulfidation attack at temperatures of 400 to 700{degree}C. Modification of alloy compositions in bulk can alter the scaling processes and lead to improvements in corrosion resistance, but the benefits can only be attained at temperatures much higher than the service temperatures of the components. Modification of surfaces of structural components by several of the coating techniques examined in this study showed substantial benefit in corrosion resistance when tested in simulated coal gasification environments. The paper presents several examples of surface modification and their corrosion performance.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10186040
• Report Number(s): ANL/ET/CP-80044; CONF-9306246-1; ON: DE93017419
• Resource Relation: Conference: Workshop on materials for coal gasification power plant,Petten (Netherlands),14-16 Jun 1993; Other Information: PBD: Jun 1993
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
36 MATERIALS SCIENCE
COAL GASIFICATION
MATERIALS
SURFACE COATING
CORROSION RESISTANCE
TEMPERATURE RANGE 0400-1000 K
CARBON STEELS
NICKEL BASE ALLOYS
COBALT BASE ALLOYS
AUSTENITIC STEELS
CHROMIUM ALLOYS
ALUMINIUM ALLOYS
IRON BASE ALLOYS
OXYGEN
SULFUR
PARTIAL PRESSURE
SULFIDATION
SILICON
010404
360105
GASIFICATION
CORROSION AND EROSION