EELS analysis of the nitrogen content of carbide particles in a commercial γ′-strengthened nickel-base superalloy

被引：9

作者：

Peterlechner, M. ^{[1
]}

Roesner, H. ^{[1
]}

Nembach, E. ^{[1
]}

机构：

[1] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany

来源：

SCRIPTA MATERIALIA | 2015年 / 107卷

关键词：

Electron energy loss spectroscopy (EELS); Carbides; Nitrides; Nitrogen content; Nickel-base superalloy; PRECIPITATE FREE ZONES; ALLOY;

D O I：

10.1016/j.scriptamat.2015.05.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 M-3- and M-2-edges, which overlap with the nitrogen K-edge, leads to an upper limit for the nitrogen content of the carbide: 1.8 at.%. (C) 2015 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：42 / 45

页数：4

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