HVOF ӘДІСІМЕН АЛЫНҒАН 86WC-10Co-4Cr НЕГІЗІНДЕГІ ЖАБЫНДАРДЫҢ ҚҰРЫЛЫМДЫҚ-ФАЗАЛЫҚ КҮЙІНЕ ЖӘНЕ МЕХАНИКАЛЫҚ-ТРИБОЛОГИЯЛЫҚ ҚАСИЕТТЕРІНЕ БҮРКУ ҚАШЫҚТЫҒЫНЫҢ ӨЗГЕРУІНІҢ ӘСЕРІ

Жұмыста бүрку қашықтығын өзгерту арқылы TERMIKA-3 қондырғысында HVOF әдісімен алынған 86WC-10Co4Cr жабындарын металлографиялық және трибологиялық зерттеу нәтижелері келтірілген. Бүрку қашықтығының жабынның микроқұрылымына, фазалық құрамына, сондай-ақ механикалық және трибологиялық қасиеттеріне әсері зерттелді. Элементтердің фазалық құрамы, микроқұрылымы және таралуы рентгендік дифракция (РД), сканерлеуші электронды микроскопия (СЭМ) және энергия дисперсиялық спектроскопия (ЭДС) әдістерін қолдану арқылы талданды. Сынамалардың қаттылығы Виккерс әдісімен микро-қаттылық өлшегіште өлшенді, үйкеліс коэффициенті мен тозу дәрежесі үйкеліс пен тозу өлшегішінің көмегімен зерттелді. Зерттеу нәтижелеріне сәйкес, тозуға төзімділігі мен қаттылығы жоғары және кеуектілігі төмен 86WC-10Co-4Cr жабындарын алу үшін оңтайлы бүрку қашықтығы 300 мм екені анықталды.

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