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Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks

Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks Abstract—The results of development of new nickel-base superalloy having an operating temperature up to 800°C for gas turbine disks have been presented. Structures, mechanical properties, and phase transformations of six experimental compositions have been researched. Physical and chemical modeling has been used to make a right choice of an alloy; with parameters as composition equivalents (they were based on equations of nonpolarizing ionic radii). The highest level of strength, ductility, toughness, and heat resistance was exhibited at 750°C by the Ni–Co–Cr–W–Mo–Ta–Al–Ti–Nb experimental composition with the total of aluminum, titanium, and niobium equal to 10 wt % and containing 4 wt % of tantalum. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Inorganic Materials: Applied Research Springer Journals

Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks

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References (15)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Inorganic Chemistry; Industrial Chemistry/Chemical Engineering; Materials Science, general
ISSN
2075-1133
eISSN
2075-115X
DOI
10.1134/S2075113318060035
Publisher site
See Article on Publisher Site

Abstract

Abstract—The results of development of new nickel-base superalloy having an operating temperature up to 800°C for gas turbine disks have been presented. Structures, mechanical properties, and phase transformations of six experimental compositions have been researched. Physical and chemical modeling has been used to make a right choice of an alloy; with parameters as composition equivalents (they were based on equations of nonpolarizing ionic radii). The highest level of strength, ductility, toughness, and heat resistance was exhibited at 750°C by the Ni–Co–Cr–W–Mo–Ta–Al–Ti–Nb experimental composition with the total of aluminum, titanium, and niobium equal to 10 wt % and containing 4 wt % of tantalum.

Journal

Inorganic Materials: Applied ResearchSpringer Journals

Published: Feb 7, 2019

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