Abstract: The protective Zn coatings on steel substrates are preferable because the zinc layers play a role of “sacrificial coatings” due to their more negative electrode potential compared to steel substrate. Besides, their protective ability strongly depends from aggressive nature of environment, which determines the need of additional efforts. Vastly improvement of the chemical stability and protective ability of the Zn coatings give the additional treatments aiming the formation of “finishing“ conversion layer with desired chemical-resistant composition on the Zn surface influencing against corrosion attack. Having in mind the chemical nature of the conversion layers, it is possible to predict the improvement of the chemical and mechanical properties of the system “Conversion layer”/”Zinc coating”/”Steel substrate”. The present study shows the results obtained concerning the indentation modulus and indentation hardness of the Cr III conversion layers and their dependence

• Publication Date: 29-Apr-2018
• DOI: 10.15224/978-1-63248-150-4-35
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Abstract: In continuation of the Terrestrial Projections of the Cosmic Environmental Connections [1], it’s detailed the European Continental Territory, inside it focusing on the Central European Area. The unsuccessful functioning of the Hybrid European Union is shoring up the pressing necessity for a normal environmental-territorial, humansocial and economical efficient reorganizing of Europe, with a synergic functioning based on cosmic principles, namely corresponding to the cosmic structure and functioning organized around the Constellation Draco (Carpathian Mountains) [2], with the Nebula NGC 6543 called „Cat’s Eye” inside, as Ecliptic Pole (the Rosia Poieni Peak in the West- Carpathians, Romania).

• Publication Date: 29-Apr-2018
• DOI: 10.15224/978-1-63248-150-4-42
• Views: 0
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