Plasma assisted nitriding of Inconel 690

被引:60
作者
Leroy, C [1 ]
Czerwiec, T [1 ]
Gabet, C [1 ]
Belmonte, T [1 ]
Michel, H [1 ]
机构
[1] Ecole Mines, Inst Natl Polytech Lorraine, Lab Sci & Genie Surfaces, Unite Mixte Rech Associee,CNRS 7570, F-54042 Nancy, France
关键词
Inconel; 690; nuclear reactor; nitriding;
D O I
10.1016/S0257-8972(01)01243-9
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Inconel 690 is a nickel base alloy with a broad range of application such as nuclear reactor technology. A low temperature plasma assisted nitriding treatment is expected to improve the tribological properties without changing the corrosion resistance of this alloy. The nitrided case is constituted of two or three distinct layers depending on the plasma reactivity. These layers are, respectively, associated to three different metastable f.c.c. nitrogen solid solutions denoted gamma (N1), gamma (N2) and gamma (N3). A parabolic rate constant and an apparent action energy are determined and compared to other values taken from the literature. Dislocation and stacking fault generated in the nitrided layer are expected to play a key role in the nitriding mechanisms of Inconel 690. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:241 / 247
页数:7
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