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  Microstructure evolution of FeNiCr alloy induced by stress-oxidation coupling using high temperature nanoindentation

Li, Y., Fang, X., Zhang, S., & Feng, X. (2018). Microstructure evolution of FeNiCr alloy induced by stress-oxidation coupling using high temperature nanoindentation. Corrosion Science, 135, 192-196. doi:10.1016/j.corsci.2018.02.043.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E6FD-F Version Permalink: http://hdl.handle.net/21.11116/0000-0001-E6FE-E
Genre: Journal Article

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 Creators:
Li, Yan1, 2, Author              
Fang, Xufei3, 4, Author              
Zhang, Siyuan5, Author              
Feng, Xue3, 4, Author              
Affiliations:
1AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China, persistent22              
2Center for Mechanics and Materials, Tsinghua University, Beijing 100084, China, persistent22              
3AML, School of Aerospace Engineering, Tsinghua University, Beijing, China, persistent22              
4Center for Advanced Mechanics and Materials, Tsinghua University, Beijing, China, persistent22              
5Nanoanalytics and Interfaces, Independent Max Planck Research Groups, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2054294              

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Free keywords: Chromium alloys; Corrosion; Crack propagation; Cracks; Grain boundaries; High resolution transmission electron microscopy; High temperature operations; Iron alloys; Microstructure; Nanoindentation; Oxidation; Stress corrosion cracking; Ternary alloys; Transmission electron microscopy, Coupling condition; High temperature; Indenters; Micro-structure evolutions; Oxide grains; Sharp crack; Stress corrosion; Stress oxidation, High temperature corrosion
 Abstract: The microstructure evolution of a FeNiCr alloy oxidized at 600 °C by simultaneously applying stress via high temperature nanoindentation is reported. Analysis using transmission electron microscopy shows that a sharp crack was induced beneath the indentation area under the stress-oxidation coupling condition. Nanotwins beneath the indentation area were also observed, which acted as a barrier that ceased the crack propagation beneath the indenter by altering the path of the crack. Results reveal a transformation from inter-granular crack propagation along the oxide grain boundaries to intra-granular crack propagation through the nanotwin structure with a zig-zag pattern. © 2018 Elsevier Ltd

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Language(s): eng - English
 Dates: 2018-05-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.corsci.2018.02.043
BibTex Citekey: Li2018192
 Degree: -

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Title: Corrosion Science
  Abbreviation : Corros. Sci.
Source Genre: Journal
 Creator(s):
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Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 135 Sequence Number: - Start / End Page: 192 - 196 Identifier: ISSN: 0010-938X
CoNE: /journals/resource/954925393343