The Challenges in Development of Nickel-Based Heat-Resistant Superalloys for Gas Turbine Disks and Creation of a New Superalloy with Increased Operational Characteristics

The report presents the results of works on creation of new disk superalloy with ultimate tensile strength σB20 exceeding 1700 MPa, satisfactory ductility and high level of heat resistance – its creep rupture strength is σ100650≈1235 MPa. By the obtained properties, the superalloy is superior to all...

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Bibliographic Details
Published in:	Materials today : proceedings Vol. 11; pp. 459 - 464
Main Authors:	Logunov, Alexandr V., Zavodov, Sergey A., Danilov, Denis V.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 2019
Subjects:	disks of gas turbines heat-resistant nickel-based alloy simulation of heat-resistant alloys disks of gas turbines heat-resistant nickel-based alloy simulation of heat-resistant alloys
Online Access:	Get full text
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Summary:	The report presents the results of works on creation of new disk superalloy with ultimate tensile strength σB20 exceeding 1700 MPa, satisfactory ductility and high level of heat resistance – its creep rupture strength is σ100650≈1235 MPa. By the obtained properties, the superalloy is superior to all known domestic and foreign analogues. The structure examination results have been given which prove the optimum morphology of strengthening γ'-phase precipitates, absence of deleterious phases and high structural stability.
ISSN:	2214-7853 2214-7853
DOI:	10.1016/j.matpr.2019.01.013