Electro-spark deposition: A technique for producing wear resistant coatings

Conference · Sat Dec 01 00:00:00 EST 1984

OSTI ID:7268768

Sheldon, G L ^[1]; Johnson, R N ^[2]

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1. Washington State Univ., Pullman, WA (USA)
2. Westinghouse Hanford Co., Richland, WA (USA)

Electro-spark deposition (ESD) is a coating process using short duration, high current electrical pulses to deposit an electrode material on a metallic substrate. A principal attribute of the process is its ability to apply metallurgically bonded coatings with such a low total heat input that the bulk substrate material remains at or near ambient temperatures. A review of the process is briefly given, then current research using WC-TiC and Cr{sub 3}C{sub 2} electrodes to deposit coatings on Type 316 stainless steel and other substrates is presented. The ESD carbide coatings were found to be exceptionally hard, wear-resistant and spalling-resistant in high-stress rubbing tests. Several applications for nuclear reactor components are described. 17 refs., 18 figs., 1 tab.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 7268768
• Report Number(s): HEDL-SA-3244; CONF-850415-10; ON: DE90007244
• Resource Relation: Conference: 4. international conference on wear of materials, Vancouver (Canada), 14-18 Apr 1985
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRODEPOSITED COATINGS
WEAR RESISTANCE
CHROMIUM CARBIDES
ELECTRODEPOSITION
ELECTRODES
STAINLESS STEELS
SUBSTRATES
TITANIUM CARBIDES
WEAR
ALLOYS
CARBIDES
CARBON COMPOUNDS
CHROMIUM COMPOUNDS
COATINGS
DEPOSITION
ELECTROLYSIS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
LYSIS
MECHANICAL PROPERTIES
STEELS
SURFACE COATING
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360203 - Ceramics
Cermets
& Refractories- Mechanical Properties
360101 - Metals & Alloys- Preparation & Fabrication
360103 - Metals & Alloys- Mechanical Properties