Cutting Apart of γ″ Precipitates by Dislocations Emitted from Nanoscale Surface Notches in Ni-Base Alloy 725

M.  S. Wang; J.  P. Hanson; S. Gradečak; M.  J. Demkowicz

doi:10.1080/21663831.2013.775187

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Cutting Apart of γ″ Precipitates by Dislocations Emitted from Nanoscale Surface Notches in Ni-Base Alloy 725

Original Reports | 更新时间：2026-08-19

- Cutting Apart of γ″ Precipitates by Dislocations Emitted from Nanoscale Surface Notches in Ni-Base Alloy 725
- Materials Research Letters Vol. 1, Issue 2, Pages: 77-80(2013)
- 作者机构：
  
  1. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA USA
  2. Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences
  3. Department of Nuclear Science and Engineering Massachusetts Institute of Technology Cambridge
  4. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2013.775187
  CLC：
- Online First：27 February 2013，
  
  Published：2013
- 稿件说明：
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M. S. Wang, J. P. Hanson, S. Gradečak, et al. Cutting Apart of γ″ Precipitates by Dislocations Emitted from Nanoscale Surface Notches in Ni-Base Alloy 725[J]. Materials Research Letters, 2013, 1(2): 77-80.
DOI：

M. S. Wang, J. P. Hanson, S. Gradečak, et al. Cutting Apart of γ″ Precipitates by Dislocations Emitted from Nanoscale Surface Notches in Ni-Base Alloy 725[J]. Materials Research Letters, 2013, 1(2): 77-80. DOI： 10.1080/21663831.2013.775187.

摘要

Abstract

We present a high-resolution transmission electron microscopy study that gives evidence for cutting apart of DO

Nb γ″ precipitates by dislocations emitted from nanoscale notches on free surfaces in Inconel

725. This finding suggests that the surface morphology influences the rate of cutting apart of sub-surface precipitates in Ni-base alloys under mechanical loading.

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Related Institution

b State Key Laboratory of High Performance Roll Materials and Composite Forming School of Material Science and Engineering Hebei University of Technology Tianjin People’s Republic of China

a State Key Laboratory of Metastable Materials Science and Technology & School of Materials Science and Engineering Yanshan University Qinhuangdao People’s Republic of China

e Institute of Applied Physics of the National Academy of Sciences of Belarus

d Jiangsu Rongtai Industrial Co. Ltd.

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