RU92006211A - METHOD FOR OBTAINING CASTING DISPERSED-STRENGTHENED ALLOYS - Google Patents

METHOD FOR OBTAINING CASTING DISPERSED-STRENGTHENED ALLOYS

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Publication number
RU92006211A
RU92006211A RU92006211/02A RU92006211A RU92006211A RU 92006211 A RU92006211 A RU 92006211A RU 92006211/02 A RU92006211/02 A RU 92006211/02A RU 92006211 A RU92006211 A RU 92006211A RU 92006211 A RU92006211 A RU 92006211A
Authority
RU
Russia
Prior art keywords
dispersed
strengthened alloys
particles
alloys
melt
Prior art date
Application number
RU92006211/02A
Other languages
Russian (ru)
Other versions
RU2058996C1 (en
Inventor
А.А. Казаков
В.М. Саливон
Т.М. Миллер
И.В. Залите
Original Assignee
Ленинградский государственный технический университет
Filing date
Publication date
Application filed by Ленинградский государственный технический университет filed Critical Ленинградский государственный технический университет
Priority to RU9292006211A priority Critical patent/RU2058996C1/en
Priority claimed from RU9292006211A external-priority patent/RU2058996C1/en
Application granted granted Critical
Publication of RU2058996C1 publication Critical patent/RU2058996C1/en
Publication of RU92006211A publication Critical patent/RU92006211A/en

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Claims (1)

Изобретение относится к металлургии никелевых жаропрочных сплавов и может быть использовано для получения изделий из литейных дисперсноупрочненных сплавов, работающих в условиях высоких температур и напряжений. Способ получения литейных дисперсноупрочненных сплавов включает расплавление шихты, перегрев расплава до 1630 - 1650oС, охлаждение до 1570 - 1590oС и введение тугоплавких дисперсных частиц в количестве 0,1 - 3,0% от массы шихты при интенсивном перемешивании расплава. Причем в качестве частиц используют оксикарбонитриды титана дисперсностью 0,005 - 0,030 мкм, которые предварительно прессуют и спекают в атмосфере азота. В результате реализации механизма дисперсного упрочнения тугоплавкими субмикронными частицами оксикарбонитрида титана сплавы, полученные предложенным способом, обладают высоким уровнем жаропрочных свойств, особенно при температуре 975oС и выше.The invention relates to the metallurgy of nickel superalloys and can be used to obtain products from foundry dispersion-strengthened alloys operating under conditions of high temperatures and stresses. The method of obtaining cast-dispersed strengthened alloys includes melting the charge, overheating the melt to 1630 - 1650 o С, cooling to 1570 - 1590 o С and introducing refractory dispersed particles in an amount of 0.1 - 3.0% of the mass of the charge with intensive stirring of the melt. Moreover, titanium oxycarbonitrides with a particle size of 0.005 - 0.030 μm are used as particles, which are pre-pressed and sintered in a nitrogen atmosphere. As a result of the implementation of the mechanism of dispersion hardening by refractory submicron particles of titanium oxycarbonitride, the alloys obtained by the proposed method have a high level of heat-resistant properties, especially at a temperature of 975 o С and higher.
RU9292006211A 1992-10-20 1992-10-20 Casting dispersion hardened nickel alloys production method RU2058996C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU9292006211A RU2058996C1 (en) 1992-10-20 1992-10-20 Casting dispersion hardened nickel alloys production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU9292006211A RU2058996C1 (en) 1992-10-20 1992-10-20 Casting dispersion hardened nickel alloys production method

Publications (2)

Publication Number Publication Date
RU2058996C1 RU2058996C1 (en) 1996-04-27
RU92006211A true RU92006211A (en) 1996-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU9292006211A RU2058996C1 (en) 1992-10-20 1992-10-20 Casting dispersion hardened nickel alloys production method

Country Status (1)

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RU (1) RU2058996C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2454466C1 (en) * 2010-12-28 2012-06-27 Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" Steel and alloy modification method
RU2762442C1 (en) * 2021-04-13 2021-12-21 Федеральное государственное бюджетное образовательное учреждение высшего образования «Сибирский государственный автомобильно-дорожный университет (СибАДИ)» Method for modification of heat-resistant nickel-chromium alloys

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