Authors: M V Ved’ M D Sakhnenko H V Karakurkchi I Yu Ermolenko L P Fomina
Publish Date: 2016/08/17
Volume: 51, Issue: 5, Pages: 701-710
Abstract
The influence of the modes of electrodeposition on the morphology topography and structure of the galvanic alloys of iron with molybdenum and tungsten is discussed It is shown that the increase in the corrosion resistance of Fe–Mo and Fe–Mo–W coatings in acid and neutral chloridecontaining media is caused both by the elevation of their passivating ability caused by the process of alloying components and by the formation of globular surfaces with homogeneous chemical composition The microhardnesses of Fe–Mo and Fe–Mo–W galvanic alloys prove to be 2–3 times higher than the microhardnesses of the substrates made of lowalloy steel which can be explained by the formation of amorphous structures The results of investigations and tribological tests show that it is reasonable to apply the coatings of double and triple iron alloys in order to reduce wear in friction couples and to increase the corrosion resistance and mechanical strength of the surfaces which makes them promising for the repair and restoration technologies
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