Structure and Corrosion Resistance Against Intergranular Corrosion of Nickel-based Superalloy VDM ® Alloy C-4
Abstract
The structure of VDM ® Alloy C-4 (UNS 06455) in “as received” state was studied. The data on the kinetics of secondary phases formation for “sheet” and “tube” samples in the range from 550 to 1100 ∘C after exposure for various period of time (from 30 min to 1000 hours) are presented. The data concerning the resistance against intergranular corrosion of the material under various conditions were analyzed using ASTM G-28 and RD 24.200.15-90 techniques.
Keywords: nickel alloy, structure, VDM Alloy C-4, TTP-diagram, intergranular corrosion
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