期刊
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
卷 90, 期 6, 页码 316-323出版社
TAYLOR & FRANCIS LTD
DOI: 10.1179/0020296712Z.00000000044
关键词
Electrodeposition; Hardness; Wear; Microstructure; X-ray diffraction
The microstructure and wear behaviour of alumina nanoparticle reinforced Co-W alloy coatings have been investigated for potential replacement of hard chrome coatings. The composite coatings were pulse electrodeposited on steel substrates using a citrate bath. The effects of current density, in the range of 1-9 A dm(-2), on the particle reinforcement, phase/microstructure, microhardness, and wear properties of the coating have been studied. The coatings codeposited with current density of 5 A dm(-2) at 333 Hz pulse frequency and 33% duty cycle exhibited microhardness comparable to hard chromium coatings.
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