Features of the effect of vacuum arc discharge on a metal cathode surface in the presence of alkali-metal hydroxides and chlorides
В. Н. АрустамовArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, UzbekistanХ. Б. АшуровArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, UzbekistanA. M. MirkarimovArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, UzbekistanS.L. PozharovArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, UzbekistanKh. Kh. KadirovArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, UzbekistanI. Kh. KhudaykulovArifov Institute for Electronics, Akademgorodok, National Academy of Sciences, F. Khojaev str. 33, Tashkent, 700125, Uzbekistan
ABI
Аннотация
The effect of KOH, NaOH, LiOH, Ba(OH)2, as well as KCl and NaCl deposited onto the surface of hot-rolled steel samples on the results of their processing by vacuum arc discharge is studied. The extreme dependence of the processing speed, processed-surface roughness, and the probability of discharge ignition on the surface concentration of the substances is found. When depositing KOH with a concentration corresponding to the extreme point, the processing speed increases by a factor of 1.8, and the roughness decreases by a factor of 2.5. The results are discussed from the viewpoint of the probabilistic mechanism of the formation of elementary cathode spots followed by the formation of group cathode spots.
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