%0 Journal Article %A Astrashab, Evgenij %A Grigorchik, Aleksandr %A Belotserkovsky, Marat %A Kukareko, Vladimir %T Heat Treatment of Hypersonic Metallisation Coatings from False Alloys on the Basis of Alloy Ni80Cr20, %J Scientific Journal of Gdynia Maritime University %N 116 %P 7-14 %D 2020 %U http://zeszyty.am.gdynia.pl/artykul-2768.html %X The structural-phase state and tribomechanical characteristics of hypersonic metallisation (HM) coatings from false alloys ‘Ni80Cr20 + Al99,3’ and ‘Ni80Cr20 + 08Mn2Si’ in the initial state and after annealing at 550° С and 650°С were investigated. It is shown that annealing of the coating from the false alloy ‘Ni80Cr20 + Al99,3’ leads to a significant increase in its microhardness and wear resistance. In particular, the microhardness of the coating increases ≈ 2 times, and the wear resistance ≈ 19 times in comparison with the initial state. Annealing of the coating from ‘Ni80Cr20 + 08Mn2Si’ leads to a decrease in its microhardness by 1.4 times, and wear resistance decreases by 3.0 times compared with the initial state. %@ 2541-2486 %K high velocity oxygen fuel, false alloys, phase state, structure, wear resistance %R https://www.doi.org/10.26408/116.01