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Title: In situ investigation of high humidity stress corrosion cracking of 7075 aluminum alloy by three-dimensional (3D) X-ray synchrotron tomography

Abstract

In situ X-ray synchrotron tomography was used to investigate the stress corrosion cracking behavior of under-aged Al–Zn–Mg–Cu alloy in moisture. The discontinuous surface cracks (crack jumps) mentioned in the literature are actually a single continuous and tortuous crack when observed in three dimension (3D). Contrary to 2D measurements made at the surface which suggest non-uniform crack growth rates, 3D measurements of the crack length led to a much more accurate measurement of crack growth rates.

Authors:
 [1];  [1];  [1];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Arizona State University, Tempe, AZ (United States). Materials Science and Engineering.
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221416
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 2; Journal Issue: 4; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; stress corrosion cracking; X-ray tomography; moisture; aluminum alloys

Citation Formats

Singh, S. S., Williams, J. J., Lin, M. F., Xiao, X., De Carlo, F., and Chawla, N. In situ investigation of high humidity stress corrosion cracking of 7075 aluminum alloy by three-dimensional (3D) X-ray synchrotron tomography. United States: N. p., 2014. Web. doi:10.1080/21663831.2014.918907.
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Singh, S. S., Williams, J. J., Lin, M. F., Xiao, X., De Carlo, F., & Chawla, N. In situ investigation of high humidity stress corrosion cracking of 7075 aluminum alloy by three-dimensional (3D) X-ray synchrotron tomography. United States. https://doi.org/10.1080/21663831.2014.918907
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Singh, S. S., Williams, J. J., Lin, M. F., Xiao, X., De Carlo, F., and Chawla, N. Wed . "In situ investigation of high humidity stress corrosion cracking of 7075 aluminum alloy by three-dimensional (3D) X-ray synchrotron tomography". United States. https://doi.org/10.1080/21663831.2014.918907. https://www.osti.gov/servlets/purl/1221416.
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@article{osti_1221416,
title = {In situ investigation of high humidity stress corrosion cracking of 7075 aluminum alloy by three-dimensional (3D) X-ray synchrotron tomography},
author = {Singh, S. S. and Williams, J. J. and Lin, M. F. and Xiao, X. and De Carlo, F. and Chawla, N.},
abstractNote = {In situ X-ray synchrotron tomography was used to investigate the stress corrosion cracking behavior of under-aged Al–Zn–Mg–Cu alloy in moisture. The discontinuous surface cracks (crack jumps) mentioned in the literature are actually a single continuous and tortuous crack when observed in three dimension (3D). Contrary to 2D measurements made at the surface which suggest non-uniform crack growth rates, 3D measurements of the crack length led to a much more accurate measurement of crack growth rates.},
doi = {10.1080/21663831.2014.918907},
journal = {Materials Research Letters},
number = 4,
volume = 2,
place = {United States},
year = {Wed May 14 00:00:00 EDT 2014},
month = {Wed May 14 00:00:00 EDT 2014}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1080/21663831.2014.918907
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    Initiation and short crack growth behaviour of environmentally induced cracks in AA5083 H131 investigated across time and length scales
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