Research the problems of filtration of a high-temperature nickel alloy ZhS32 against an impurity of silicon

Stoyakina E.A., Simonov V.N., Alekseeva M.S.
UDC
669.018.44:669.245
DOI
10.18577/2307-6046-2018-0-9-12-20
Article PDF (Russian) (889.92 KB)
How to cite
Stoyakina E.A., Simonov V.N., Alekseeva M.S. Research the problems of filtration of a high-temperature nickel alloy ZhS32 against an impurity of silicon // Proceedings of VIAM. 2018. No. 9. DOI: 10.18577/2307-6046-2018-0-9-12-20. URL: https://test.viam.ru/en/journal/2018/9/2
Keywords
high-temperature nickel alloy, impurities, silicon, microstructure, filtration, foam ceramics.
Abstract

The paper studies the filtration of high-temperature nickel alloys from harmful impurities when the melt is passed through a foam ceramic filter. A microstructure was studied with the determination of the local element composition of two samples of the high-temperature nickel alloy ZhS32 with a different silicon content (0,15 and 0,32%). It is established that impurities (sulfur, silicon, oxygen) are located near and in the pores of the material, which affects the strength characteristics. A microstructural study of a master alloy sample based on Y5Si3 was carried out. As a result of x-ray phase analysis, five phases were detected: Al2Si2Y, Al3Si2Y2, Y2AlSi2, Al, Al3Y, three of which contain silicon.

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