کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1445700 | 1509605 | 2014 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Phase stability of σ-CrFe intermetallic compound under fast electron irradiation Phase stability of σ-CrFe intermetallic compound under fast electron irradiation](/preview/png/1445700.png)
The phase stability of the σ-CrFe intermetallic compound under fast electron irradiation was studied using high-voltage electron microscopy. Under MeV electron irradiation within the temperature range of 298–473 K, the σ phase does not maintain its original structure, but instead transforms into a body-centered cubic solid solution. No changes in the topological structure are observed at temperatures below 103 K. This temperature dependence of the phase stability in σ-CrFe exhibited the opposite tendency to that of solid-state amorphization. The dominant factor affecting the phase stability was discussed in terms of the Gibbs free energy and the microstructural changes associated with the thermally assisted, radiation-enhanced migration of defects and/or constituent atoms.
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Journal: Acta Materialia - Volume 71, June 2014, Pages 195–205