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Erschienen in: Metallurgist 5-6/2017

24.10.2017

Desulfurization of Single-Crystal Nickel Superalloys with Vacuum Melting

verfasst von: V. V. Sidorov, P. G. Min, D. E. Kablov

Erschienen in: Metallurgist | Ausgabe 5-6/2017

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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.

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Metadaten
Titel
Desulfurization of Single-Crystal Nickel Superalloys with Vacuum Melting
verfasst von
V. V. Sidorov
P. G. Min
D. E. Kablov
Publikationsdatum
24.10.2017
Verlag
Springer US
Erschienen in
Metallurgist / Ausgabe 5-6/2017
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-017-0507-8

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