Hardening due to Interfacial He Bubbles in Nanolayered Composites

Nan Li; Michael Demkowicz; Nathan Mara; Yongqiang Wang; Amit Misra

doi:10.1080/21663831.2015.1110730

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Hardening due to Interfacial He Bubbles in Nanolayered Composites

Original Reports | 更新时间：2026-08-19

- Hardening due to Interfacial He Bubbles in Nanolayered Composites
- Hardening due to Interfacial He Bubbles in Nanolayered Composites
- 材料研究快报（英文） 2016年4卷第2期页码：75-82
- 作者机构：
  
  1. Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos
  2. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge
  3. Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos 45 USA,NM875
  4. Institute for Materials Science Los Alamos National Laboratory Los Alamos
  5. Materials Science and Technology Division Los Alamos National Laboratory Los Alamos
  6. Department of Materials Science and Engineering University of Michigan Ann Arbor
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2015.1110730
  中图分类号：
- 网络首发：2015-12-15，
  
  纸质出版：2016
- 稿件说明：
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Nan Li, Michael Demkowicz, Nathan Mara, 等. Hardening due to Interfacial He Bubbles in Nanolayered Composites[J]. 材料研究快报（英文）, 2016,4(2):75-82.

Nan Li, Michael Demkowicz, Nathan Mara, et al. Hardening due to Interfacial He Bubbles in Nanolayered Composites[J]. Materials Research Letters, 2016, 4(2): 75-82.
Nan Li, Michael Demkowicz, Nathan Mara, 等. Hardening due to Interfacial He Bubbles in Nanolayered Composites[J]. 材料研究快报（英文）, 2016,4(2):75-82. DOI： 10.1080/21663831.2015.1110730.

Nan Li, Michael Demkowicz, Nathan Mara, et al. Hardening due to Interfacial He Bubbles in Nanolayered Composites[J]. Materials Research Letters, 2016, 4(2): 75-82. DOI： 10.1080/21663831.2015.1110730.

摘要

Abstract

series of helium (He) implantations with varying energies and doses were used to introduce bubbles into interfaces in Cu/Mo

Cu/V and Cu/Nb nanolayered composites. Micro-pillar compression testing revealed that the interfacial He bubbles give rise to modest hardening as compared to those in grain interiors. The flow stress enhancement is proportional to the strength of the un-implanted sample. We discuss the influence of the structure of the interfacial dislocation network

the shear resistance of the interfaces

and atomic-level interface steps on hardening. Interfaces with higher density of misfit dislocation intersections and lower shear resistance tend to provide greater hardening.

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