In situ transmission electron microscopy investigations of the kinetics of a00-Fe16N2 precipitation during the ageing of nitrogen–ferrite
作者:    发表时间: 2014-07-01   阅读次数: 959次

In situ transmission electron microscopy investigations of the kinetics of a00-Fe16N2 precipitation during the ageing of nitrogen–ferrite

 

X.C. Xiong, A. Redjaı¨mia, M. Goune

 

Abstract: In situ transmission electron microscopy investigations were carried out on a supersaturated nitrogen–ferrite to characterise the precipitation kinetics of a00-Fe16N2 nitrides at 85 C. The coarsening behaviour consists of two stages. The first stage obeys the LSW theory and the coarsening rate was determined as 11.2 nm3 s1. The second stage corresponds to the stabilization of coarsening, and was assumed to be related to the coherency loss between the precipitates and the matrix.

In situ transmission electron microscopy investigations of the kinetics of a00-Fe16N2 precipitation during the ageing of nitrogen–ferrite.pdf

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