Abstract
The dependence of the mechanical properties of rhenium-coated, commercially pure molybdenum wires 1 mm in diameter on the rhenium coating thickness w = 0.4−4.2 μm was studied. The coatings were deposited by vacuum electron beam evaporation with simultaneous Ar ion irradiation (ion-beam-assisted deposition method). The increases in elasticity limit σ(e) and yield stress σ(0.2%) due to the coating were found to be about 28% and 12% in comparison with uncoated wire. Maximal property increments occur when the ratio of coating thickness to wire diameter is w d = 0.001−0.002 . Fractographic features were investigated by means of multifractal analysis.
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