Email this article Desulfurization of Single-Crystal Nickel Superalloys with Vacuum Melting
- Authors: Sidorov V.V.1, Min P.G.1, Kablov D.E.1
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Affiliations:
- State Research Center of the Russian Federation – All-Russia Research Institute of Aviation Materials
- Issue: Vol 61, No 5-6 (2017)
- Pages: 400-405
- Section: Article
- URL: https://journal-vniispk.ru/0026-0894/article/view/240350
- DOI: https://doi.org/10.1007/s11015-017-0507-8
- ID: 240350
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Abstract
An unfavorable effect is established for a high sulfur content on the high-temperature strength properties of single-crystal alloy ZhS36 in stress-rupture tests based on 500 h, on the average number of cycles to failure during low-cycle fatigue tests, and also on coated alloy isothermal heat resistance. The unfavorable effect of sulfur may be overcome by alloy refinement with lanthanum followed by melt filtration through a ceramic foam filter during casting. Metallographic study confirms the results obtained for the effect of alloy refinement with lanthanum.
About the authors
V. V. Sidorov
State Research Center of the Russian Federation – All-Russia Research Institute of Aviation Materials
Author for correspondence.
Email: veska38@mail.ru
Russian Federation, Moscow
P. G. Min
State Research Center of the Russian Federation – All-Russia Research Institute of Aviation Materials
Email: veska38@mail.ru
Russian Federation, Moscow
D. E. Kablov
State Research Center of the Russian Federation – All-Russia Research Institute of Aviation Materials
Email: veska38@mail.ru
Russian Federation, Moscow
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