In situ Observation of Defect Annihilation in Kr Ion-Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy

K.Y. Yu; Z. Fan; Y. Chen; M. Song; Y. Liu; H. Wang; M.A. Kirk; M. Li; X. Zhang

doi:10.1080/21663831.2014.951494

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In situ Observation of Defect Annihilation in Kr Ion-Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy

Original Reports | 更新时间：2026-08-19

- In situ Observation of Defect Annihilation in Kr Ion-Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy
- Materials Research Letters Vol. 3, Issue 1, Pages: 35-42(2015)
- 作者机构：
  
  1. Department of Materials Science and Engineering China University of Petroleum-Beijing Beijing People's Republic of China,102249
  2. Department of Materials Science and Engineering Texas A&M University College Station
  3. Department of Electrical and Computer Engineering Texas A&M University College Station
  4. Materials Science Division Argonne National Laboratory Argonne
  5. Nuclear Engineering Division Argonne National Laboratory Argonne
  6. Department of Materials Science and Engineering Texas A&M University College Station TX77843-A,3123 US
  7. Department of Mechanical Engineering Texas A&M University College Station
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2014.951494
  CLC：
- Online First：26 August 2014，
  
  Published：2015
- 稿件说明：
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K.Y. Yu, Z. Fan, Y. Chen, et al. In situ Observation of Defect Annihilation in Kr Ion-Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy[J]. Materials Research Letters, 2015, 3(1): 35-42.
DOI：

K.Y. Yu, Z. Fan, Y. Chen, et al. In situ Observation of Defect Annihilation in Kr Ion-Irradiated Bulk Fe/Amorphous-Fe2Zr Nanocomposite Alloy[J]. Materials Research Letters, 2015, 3(1): 35-42. DOI： 10.1080/21663831.2014.951494.

摘要

Abstract

Enhanced irradiation tolerance in crystalline multilayers has received significant attention lately. However

little is known on the irradiation response of crystal/amorphous nanolayers. We report on

in situ

Kr ion irradiation studies of a bulk Fe

nanocomposite alloy. Irradiation resulted in amorphization of Fe

Zr and formed crystal/amorphous nanolayers. α-Fe layers exhibited drastically lower defect density and size than those in large α-Fe grains.

In situ

video revealed that mobile dislocation loops in α-Fe layers were confined by the crystal/amorphous interfaces and kept migrating to annihilate other defects. This study provides new insights on the design of irradiation-tolerant crystal/amorphous nanocomposites.

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