Tribological coatings for liquid metal and irradiation environments

Journal Article · Sun Jun 01 04:00:00 EDT 1986 · J. Mater. Energy Syst.; (United States)

DOI:https://doi.org/10.1007/BF02833457· OSTI ID:6811268

Johnson, R N

Several metallurgical coatings have been developed that provide good tribological performances in high-temperature liquid sodium and that are relatively unaffected by neutron fluences to 6 X 10/sup 22/ n/cm/sup 2/ (E > 0.1 MeV). The coatings that have consistently provided the best tribological performance have been the nickel aluminide diffusion coatings created by the pack cementation process, chromium carbide or Tribaloy 700 trade mark (a nickel-base hardfacing alloy) applied by the detonation-gun process, and chromium carbide and other hardfacing alloy) applied by the detonation-gun process, and chromium carbide and other hardfacing materials applied by the electro-spark deposition process. The latter process is a relatively recent development for nuclear applications and is expected to find wide usage. Other coating processes, such as plasma-spray coating, sputtering, and chemical vapor deposition, were candidates for use on various components, but the coatings did not pass the required qualification tests or were not economically competitive. The advantages and limitations of the three selected processes are discussed, the tribological performance of the coatings is reviewed, and representative applications and their performance requirements are described.

• Research Organization: Westinghouse Hanford Co., Richland, WA 99352
• OSTI ID: 6811268
• Journal Information: J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 8:1; ISSN JMSMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
360603 -- Materials-- Properties
360605 -- Materials-- Radiation Effects
ALKALI METALS
ALLOYS
ALUMINIUM COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CEMENTING
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CHROMIUM ALLOYS
CHROMIUM CARBIDES
CHROMIUM COMPOUNDS
COATINGS
DEPOSITION
DETONATIONS
DIFFUSION COATINGS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ELEMENTS
ENERGY RANGE
FLUIDS
GUNS
INDUSTRY
IRRADIATION
LIQUID METALS
LIQUIDS
METALS
MEV RANGE
MEV RANGE 01-10
MOLYBDENUM ALLOYS
NEUTRON FLUENCE
NICKEL ALLOYS
NICKEL BASE ALLOYS
NICKEL COMPOUNDS
NUCLEAR INDUSTRY
PERFORMANCE
PHYSICAL RADIATION EFFECTS
PLASMA ARC SPRAYING
PROTECTIVE COATINGS
RADIATION EFFECTS
SODIUM
SPRAY COATING
SPUTTERING
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRIBALOY 700
TRIBOLOGY