Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten

O. El-Atwani; J. A. Hinks; G. Greaves; J. P. Allain; S. A. Maloy

doi:10.1080/21663831.2017.1292326

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Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten

Original Report | 更新时间：2026-08-19

- Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten
- Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten
- 材料研究快报（英文） 2017年5卷第5期页码：343-349
- 作者机构：
  
  1. Department of Materials Science and Engineering Drexel University Philadelphia
  2. School of Computing and Engineering University of Huddersfield
  3. Department of Nuclear Plasma and Radiological Engineering University of Illinois at Urbana-Champaign Urbana
  4. Materials Science and Technology Division Los Alamos National Laboratory Los Alamos
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2017.1292326
  中图分类号：
- 网络首发：2017-02-21，
  
  纸质出版：2017
- 稿件说明：
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O. El-Atwani, J. A. Hinks, G. Greaves, 等. Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten[J]. 材料研究快报（英文）, 2017,5(5):343-349.

O. El-Atwani, J. A. Hinks, G. Greaves, et al. Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten[J]. Materials Research Letters, 2017, 5(5): 343-349.
O. El-Atwani, J. A. Hinks, G. Greaves, 等. Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten[J]. 材料研究快报（英文）, 2017,5(5):343-349. DOI： 10.1080/21663831.2017.1292326.

O. El-Atwani, J. A. Hinks, G. Greaves, et al. Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten[J]. Materials Research Letters, 2017, 5(5): 343-349. DOI： 10.1080/21663831.2017.1292326.

摘要

Abstract

BSTRACTNanocrystalline metals are considered highly radiation-resistant materials due to their large grain boundary areas. Here

the existence of a grain size threshold for enhanced irradiation resistance in high-temperature helium-irradiated nanocrystalline and ultrafine tungsten is demonstrated. Average bubble density

projected bubble area and the corresponding change in volume were measured via transmission electron microscopy and plotted as a function of grain size for two ion fluences. Nanocrystalline grains of less than 35 nm size possess ∼10–20 times lower change in volume than ultrafine grains and this is discussed in terms of the grain boundaries defect sink efficiency.

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相关机构

Department of Radiation Solid Interactions Sandia National Laboratories Albuquerque

Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos

Department of Materials Science & Engineering Drexel University

a Key Laboratory of Multifunctional Nanomaterials and Smart Systems Division of Advanced Materials Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou People’s Republic of China

b Institute of Microstructure and Property of Advanced Materials Beijing University of Technology

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