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

Conference · Sat Dec 01 04:00:00 EST 1984

OSTI ID:7268768

Sheldon, G L ^[1]; Johnson, R N ^[2]

---

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
• Country of Publication: United States
• Language: English

Related Subjects

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