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 SM ISO690:2012YURCHENKO, E., GHILEȚCHII, Gheorghe, VATAVU, Sergiu, PETRENKO, Vladimir, HAREA, Diana, BUBULINCĂ, C., DIKUSAR, Aleksandr. Composition, Structure, and Wear Resistance of Surface Nanostructures Obtained by Electric Spark Alloying of 65G Steel. In: Surface Engineering and Applied Electrochemistry, 2024, vol. 60, pp. 194-203. ISSN 1068-3755. DOI: https://doi.org/10.3103/S1068375524020145 |
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  Surface Engineering and Applied Electrochemistry |
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| Volumul 60 / 2024 / ISSN 1068-3755 /ISSNe 1934-8002 | |
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| DOI:https://doi.org/10.3103/S1068375524020145 | |
| Pag. 194-203 | |
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A combination of X-ray diffraction and X-ray fluorescence analysis has shown that the strengthened layer formed during electric spark alloying of 65G steel with a processing electrode made of the T15K6 hard alloy is a nanocrystalline material, the ratio of the crystalline and amorphous phases in which is achieved by changing the discharge energy. Since an increase in discharge energy leads to an increase in surface roughness and its amorphization, there is an optimal value of discharge energy at which maximum wear resistance of the resulting nanocomposites is achieved. At E = 0.2 J, the wear resistance of the hardened layer is 7–10 times higher than the wear resistance of the untreated surface. |
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| Cuvinte-cheie 65g steel, Amorphous phasis, Composition structure, Crystalline phasis, discharge energy, Electric-spark alloying, hard alloy, Surface nanostructure, X ray fluorescence analysis, X- ray diffraction |
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