High-Strength Nickel-Based Alloy SLGS-5 for Operation in Active Marine Salt Corrosion Environment. (2019)

• Record Type: Journal Article
• Authors: Logunov, Alexandr V.; Danilov, Denis V.; Khramin, Roman V.
• Is Part Of: Materials today. Volume 11:Part 1(2019)
• Page Start: 453
• Page End: 458
• Publication Date: 2019
• Subjects: heat-resistant alloy -- corrosion resistance -- heat-resistant alloy simulation; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.01.012
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: 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 ( σ 100 1000 =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.