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The critical monotonic strain of Ni-W and MoS2(Ti,W) coatings on steel substrates was studied. The idea of axisymmetric bending test (called here as coin bending test) limited to monitoring of the coating failure was used. Experiments revealed mechanism of the coating failure, as cracking initiated from coating surface defects and/or substrate was demonstrated using indentation technique. By pushing...
The electroplating of Ni-W amorphous coatings from citrate aqueous solutions was studied with the aim of determination the optimal condition to obtain high tungsten content and good quality of the deposits. The influence of bath composition and the operating parameters on the tungsten content and the alloy properties were discussed. It was shown that the most important variable determining the alloy...
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