The effect of Cr concentration on displacement cascades in Fe-Cr binary alloys

Xinhua Yang

doi:10.21767/2471-9838-C1-029

The effect of Cr concentration on displacement cascades in Fe-Cr binary alloys

18^th Edition of International Conference on Emerging Trends in Materials Science and Nanotechnology
January 28-29, 2019 Barcelona, Spain

Xinhua Yang

Huazhong University of Science and Technology, China

Keynote: Nano Res Appl

DOI: 10.21767/2471-9838-C1-029

Abstract

Displacement cascades in random Fe-Cr binary alloys with a wide range of Cr concentration from 2% to 20% were simulated by using the molecular dynamics method and the effect of Cr concentration on cascade damage was carefully investigated. The results showed that the average number of surviving Frankel pairs is approximately the same in Fe-Cr alloys and the average fraction of vacancies in clusters is roughly constant, within scatter, over the whole range of Cr concentration. The average fraction of self-interstitial atoms (SIAs) is slightly bigger in a lower Cr concentration alloy than in a higher Cr concentration alloy. The number of Cr atoms associated with survived selfinterstitial defects was analyzed. The data show that the content of Cr in interstitials approximately exceeds two or three times the matrix content, which indicated that there is a significant enrichment of SIA defects by Cr.

Recent Publications

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