Oxide Nonmetallic Inclusions in an NiAl-Based Nickel Alloy

• Published in: Russian metallurgy Metally Vol. 2021; no. 9; pp. 1116 - 1120
• Main Authors: Alpatov, A. V., Grigorovich, K. V., Logachev, I. A.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2021; Springer Nature B.V
• Subjects: Aluminum; Calcium compounds; Calcium oxide; Chemistry and Materials Science; Electron microscopes; Gas analysis; Intermetallic compounds; Lanthanum; Lime; Materials Science; Metallic Materials; Nickel alloys; Nickel aluminides; Nickel base alloys; Nickel compounds; Nonmetallic inclusions; Oxygen content; NiAl intermetallic compound; fractional gas analysis; oxide nonmetallic inclusions; lanthanum
• ISSN: 0036-0295; 1555-6255; 1531-8648
• DOI: 10.1134/S0036029521090020

—Fractional gas analysis is used to study the oxide nonmetallic inclusions (NIs) in a nickel alloy based on the NiAl intermetallic compound. Aluminum, lanthanum, and calcium oxides are shown to be the main NIs; the oxygen content in the alloy, which corresponds to them, is 11.6 ± 1.7 ppm. The NI compositions, which are determined with a scanning electron microscope by local energy-dispersion analysis, confirm the fractional gas analysis data for the NiAl-based nickel alloy.