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Title: Deformation and fracture of explosion-welded Ti/Al plates: A synchrotron-based study

Abstract

Here, explosion-welded Ti/Al plates are characterized with energy dispersive spectroscopy and x-ray computed tomography, and exhibit smooth, well-jointed, interface. We perform dynamic and quasi-static uniaxial tension experiments on Ti/Al with the loading direction either perpendicular or parallel to the Ti/Al interface, using a mini split Hopkinson tension bar and a material testing system in conjunction with time-resolved synchrotron x-ray imaging. X-ray imaging and strain-field mapping reveal different deformation mechanisms responsible for anisotropic bulk-scale responses, including yield strength, ductility and rate sensitivity. Deformation and fracture are achieved predominantly in Al layer for perpendicular loading, but both Ti and Al layers as well as the interface play a role for parallel loading. The rate sensitivity of Ti/Al follows those of the constituent metals. For perpendicular loading, single deformation band develops in Al layer under quasi-static loading, while multiple deformation bands nucleate simultaneously under dynamic loading, leading to a higher dynamic fracture strain. For parallel loading, the interface impedes the growth of deformation and results in increased ductility of Ti/Al under quasi-static loading, while interface fracture occurs under dynamic loading due to the disparity in Poisson's contraction.

Authors:
 [1];  [2];  [3];  [4];  [4];  [4];  [5];  [1]
  1. The Peac Institute of Multiscale Sciences, Sichuan (People's Republic of China); Southwest Jiaotong Univ., Sichuan (People's Republic of China)
  2. The Peac Institute of Multiscale Sciences, Sichuan (People's Republic of China); Univ. of Science and Technology of China, Hefei (China)
  3. The Peac Institute of Multiscale Sciences, Sichuan (People's Republic of China); Wuhan Univ. of Technology, Wuhan (China)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Dalian Univ. of Technology, Liaoning (People's Republic of China)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Basic Research Program of China; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1340296
Alternate Identifier(s):
OSTI ID: 1374076
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Additional Journal Information:
Journal Volume: 674; Journal Issue: C; Journal ID: ISSN 0921-5093
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; XCT; XDIC; dynamic tensile loading; explosion welding

Citation Formats

E, J. C., Huang, J. Y., Bie, B. X., Sun, T., Fezzaa, K., Xiao, X. H., Sun, W., and Luo, S. N. Deformation and fracture of explosion-welded Ti/Al plates: A synchrotron-based study. United States: N. p., 2016. Web. doi:10.1016/j.msea.2016.07.125.
E, J. C., Huang, J. Y., Bie, B. X., Sun, T., Fezzaa, K., Xiao, X. H., Sun, W., & Luo, S. N. Deformation and fracture of explosion-welded Ti/Al plates: A synchrotron-based study. United States. https://doi.org/10.1016/j.msea.2016.07.125
E, J. C., Huang, J. Y., Bie, B. X., Sun, T., Fezzaa, K., Xiao, X. H., Sun, W., and Luo, S. N. Tue . "Deformation and fracture of explosion-welded Ti/Al plates: A synchrotron-based study". United States. https://doi.org/10.1016/j.msea.2016.07.125. https://www.osti.gov/servlets/purl/1340296.
@article{osti_1340296,
title = {Deformation and fracture of explosion-welded Ti/Al plates: A synchrotron-based study},
author = {E, J. C. and Huang, J. Y. and Bie, B. X. and Sun, T. and Fezzaa, K. and Xiao, X. H. and Sun, W. and Luo, S. N.},
abstractNote = {Here, explosion-welded Ti/Al plates are characterized with energy dispersive spectroscopy and x-ray computed tomography, and exhibit smooth, well-jointed, interface. We perform dynamic and quasi-static uniaxial tension experiments on Ti/Al with the loading direction either perpendicular or parallel to the Ti/Al interface, using a mini split Hopkinson tension bar and a material testing system in conjunction with time-resolved synchrotron x-ray imaging. X-ray imaging and strain-field mapping reveal different deformation mechanisms responsible for anisotropic bulk-scale responses, including yield strength, ductility and rate sensitivity. Deformation and fracture are achieved predominantly in Al layer for perpendicular loading, but both Ti and Al layers as well as the interface play a role for parallel loading. The rate sensitivity of Ti/Al follows those of the constituent metals. For perpendicular loading, single deformation band develops in Al layer under quasi-static loading, while multiple deformation bands nucleate simultaneously under dynamic loading, leading to a higher dynamic fracture strain. For parallel loading, the interface impedes the growth of deformation and results in increased ductility of Ti/Al under quasi-static loading, while interface fracture occurs under dynamic loading due to the disparity in Poisson's contraction.},
doi = {10.1016/j.msea.2016.07.125},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
number = C,
volume = 674,
place = {United States},
year = {Tue Aug 02 00:00:00 EDT 2016},
month = {Tue Aug 02 00:00:00 EDT 2016}
}

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Cited by: 14 works
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Works referencing / citing this record:

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