High-Strength Nickel-Based Alloy SLGS-5 for Operation in Active Marine Salt Corrosion Environment

Nowadays, one of the most important tasks when creating marine gas-turbine engines is development of heat-resistant nickel-based alloys simultaneously possessing high strength properties at operating temperatures and high resistance to marine salt corrosion. The paper presents the results of work on...

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Bibliographic Details
Published inMaterials today : proceedings Vol. 11; pp. 453 - 458
Main Authors Logunov, Alexandr V., Danilov, Denis V., Khramin, Roman V.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2019
Subjects
corrosion resistance
heat-resistant alloy
heat-resistant alloy simulation
heat-resistant alloy simulation
corrosion resistance
heat-resistant alloy
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Summary:Nowadays, one of the most important tasks when creating marine gas-turbine engines is development of heat-resistant nickel-based alloys simultaneously possessing high strength properties at operating temperatures and high resistance to marine salt corrosion. The paper presents the results of work on creation of a new high-strength nickel-based alloy which exhibits both a high level of heat resistance typical for aviation alloys (σ1001000=190-200 MPa) and corrosion resistance exceeding the values of conventional corrosion resistant nickel-based alloys ChS70, ChS88, In738 and others. The results of structure examination are presented. They show the qualitative characteristics in morphology of strengthening γ'-phase precipitates, absence of TCP-phase trace elements and high structural stability.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2019.01.012