EELS analysis of the nitrogen content of carbide particles in a commercial γ′-strengthened nickel-base superalloy. (October 2015)

• Record Type: Journal Article
• Authors: Peterlechner, M.; Rösner, H.; Nembach, E.
• Is Part Of: Scripta materialia. Volume 107(2015)
• Page Start: 42
• Page End: 45
• Publication Date: 2015-10
• Subjects: Electron energy loss spectroscopy (EELS) -- Carbides -- Nitrides -- Nitrogen content -- Nickel-base superalloy; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2015.05.016
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Abstract : Carbide particles contribute to the high strength of nickel-base superalloys. It is a long standing question whether these carbide particles contain nitrogen. Here we examine the nitrogen content of the titanium–molybdenum-carbide in the commercial superalloy NIMONIC PE16 using a combination of electron energy loss spectroscopy (EELS) with energy dispersive X-ray (EDX) analysis. Careful examination of the molybdenum M3 - and M2 -edges, which overlap with the nitrogen K-edge, leads to an upper limit for the nitrogen content of the carbide: 1.8 at.%.