We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Structure and Properties of a Hard Alloy Coating Deposited by High-Velocity Pulsed Plasma Jet onto a Copper Substrate.
- Authors
Pogrebnyak, A. D.; Il’yashenko, M. V.; Kshnyakin, V. S.; Tyurin, Yu. N.; Ivanov, Yu. F.
- Abstract
Using a plasmatron operating in specially calculated regimes, tungsten carbide (WC) based coatings were deposited onto a copper crystallizer plate. It was found that a local hardness of the WC-Co coating may reach up to 1.3 × 10[sup 4] N/mm² and the coating adhesion to substrate may be as high as 270 MPa. The elemental and phase compositions of coatings were studied by Rutherford backscattering spectroscopy, X-ray diffraction, and transmission electron microscopy with electron diffraction. The surface morphology and depth-composition profiles of the coatings were studied by optical and scanning electron microscopy. The coating is composed of WC crystal grains with hexagonal close packed (hcp) lattice, α- and β-Co grains, and cubic WC grains. The average size of the hcp WC grains is 0.15 µm and that of the cobalt particles is about 25 nm. In addition, the grain boundaries contain W[sub 3]Co[sub 3]C particles with an average size of 15 nm.
- Subjects
ALLOY plating; SEMICONDUCTORS
- Publication
Technical Physics Letters, 2001, Vol 27, Issue 9, p749
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/1.1405248