Wear-resistant coatings produced by shock-wave compaction of powders

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Metallurgical Transactions, A

DOI:https://doi.org/10.1007/BF02651884· OSTI ID:367294

Kiiski, A A; Ruuskanen, P R; Rubin, J B ^[1]

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1. Technical Research Center of Finland, Tampere (Finland)

Wear-resistant metal-matrix composite coatings with a thickness of 1.5 mm were fabricated on low-alloy steel substrates by explosively generated shock waves. Starting materials were equivolume mixtures of WC or Cr{sub 3}C{sub 2} powder mixed with either titanium or cobalt powder as a binder phase. Three different planar geometries were used, with powder layer thicknesses varying from 1 to 3 mm. Microstructural examination showed that fully dense, crack-free coatings could be produced with a uniform distribution of the carbides within the metallic binder phase. Shear strengths in excess of 40 MPa were measured for coatings composed of equivolume powder mixtures of (Cr{sub 3}C{sub 2} + Ti) and (WC + Ti). The weight loss of a coating produced from an equivolume (WC + Co) powder mixture measured from a two-body abrasive wear test was significantly lower than that measured for a wear-resistant tool steel used as a reference material.

• Sponsoring Organization: USDOE
• OSTI ID: 367294
• Journal Information: Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 8 Vol. 27; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
BINDERS
BULK DENSITY
CHROMIUM CARBIDES
COBALT
COMPACTING
COMPOSITE MATERIALS
EXPLOSIVES
MICROSTRUCTURE
SERVICE LIFE
SHEAR PROPERTIES
STEELS
TITANIUM
TUNGSTEN CARBIDES
VELOCITY
WEAR RESISTANCE
WEIGHT MEASUREMENT