Effects of irradiation on chromium’s behavior in ferritic/martensitic FeCr alloy

Abstract

The effects of irradiation on chromium performance under different temperatures in Fe-20at%Cr were modeled by modified Marlowe code. Chromium precipitation was observed in FeCr alloy after irradiation; interstitial Chromium atoms are the preferred formation of mixed Fe-Cr dumbbells in the direction of<110>and<111>; interstitial chromium atoms congregated on {111} and {110} plane. The results are compared with experiment observations and are useful to understanding the irradiation performances of FeCr alloy.

Key words： irradiation; Fe-20at%Cr alloy; chromium segregation

Acknowledgements

This work was funded by the National Basic Research Program of China (No. 2007CD209801). The author would like to thank Mark T. Robinson for providing the Marlowe code, and Prof. Yu Jinnan and Wu Xuezhi for their intelligent discussion.

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