Сравнительная высокотемпературная износостойкость сплава чс88у-ви и стеллита х30н50ю5т2
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Дата
2014
Автори
Костин, А. М.
Бутенко, А. Ю.
Мартыненко, В. А.
Kostin, O. M.
Butenko, A. Y.
Martynenko, V. O.
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Анотація
Показано, что при кажущемся обилии наплавочных материалов при их выборе возникают серьезные проблемы. В этой связи целью исследований явилось определение количественных сравнительных характеристик износостойкости литейного жаропрочного никелевого сплава ЧС88У-ВИ и стеллита Х30Н50Ю5Т2. Установлено, что стойкость сплава ЧС88У-ВИ при температурах испытаний, близких к температурам растворения γ′-фазы, значительно выше, чем стеллита
The optimal compositions and application techniques of wear-resistant alloys on platforms of turbine blades are discussed. It is demonstrated that the serious problems arise when choosing the necessary alloying materials despite the apparent variety of them. Such a choice is significantly complicated by the lack of quantitative characteristics of wear-resistance of widely used alloying materials and basic heat-resistant alloys. Consequently, the aim of the study was to determine the quantitative comparative characteristics of wear-resistance of the ЧС88У-ВИ casting heat-resistant nickel alloy and the Х30Н50Ю5Т2 stellite at peak temperatures of gas turbine engines exploitation in the conditions most closely resembling the actual ones. It is established that the ЧС88У-ВИ alloy in the conditions of high temperature tests (~ 1150 ºС) which are close to the solution temperatures of the γ′-phase demonstrates the considerably higher resistance than the Х30Н50Ю5Т2 stellite.
The optimal compositions and application techniques of wear-resistant alloys on platforms of turbine blades are discussed. It is demonstrated that the serious problems arise when choosing the necessary alloying materials despite the apparent variety of them. Such a choice is significantly complicated by the lack of quantitative characteristics of wear-resistance of widely used alloying materials and basic heat-resistant alloys. Consequently, the aim of the study was to determine the quantitative comparative characteristics of wear-resistance of the ЧС88У-ВИ casting heat-resistant nickel alloy and the Х30Н50Ю5Т2 stellite at peak temperatures of gas turbine engines exploitation in the conditions most closely resembling the actual ones. It is established that the ЧС88У-ВИ alloy in the conditions of high temperature tests (~ 1150 ºС) which are close to the solution temperatures of the γ′-phase demonstrates the considerably higher resistance than the Х30Н50Ю5Т2 stellite.
Опис
Костин, А. М. Сравнительная высокотемпературная износостойкость сплава ЧС88У-ВИ и стеллита Х30Н50Ю5Т2 / А. М. Костин, А. Ю. Бутенко, В. А. Мартыненко // Зб. наук. пр. НУК. – Миколаїв: НУК, 2014. – № 4. – С. 55–59.
Ключові слова
рабочая лопатка, бандажная полка, упрочнение, ацетиленокислородная наплавка, твердость, износостойкость, the working blade, the platform, hardening, oxy-acetylene surfacing, hardness, wear-resistance