Microstructural Effects on Damage Nucleation in Shock-Loaded Polycrystalline Copper
Abstract
Polycrystalline copper samples with varying thermomechanical histories were shock loaded to induce spall via laser-driven plate impacts at low shock stress (<6 GPa). Electron backscattering diffraction was used to obtain statistics on grain boundary (GB) misorientations within the spall plane and at all GBs that contained damage. Specimens with pre-existing plastic deformation showed dominant intergranular damage at boundaries in the 25 to 50 deg misorientation range, while heat-treated samples had mixed trans- and intergranular damage with a lessened disorientation influence at damaged GBs. 3-D X-ray tomography data were used to analyze global volume statistics and qualitatively inspect the shape of voids present in samples of varying thermomechanical histories. It was found that annealed samples had a mixed mode of spherical and sheet-like voids, indicative of trans- and intergranular damage, respectively, and the microstructure with the highest number of Σ3 twin boundaries had the highest concentration of spherical voids. Data from a plastically pre-strained sample showed a dominance of needle- and sheet-like voids, indicating primarily intergranular damage due to the higher strength of the bulk material forcing the damage to nucleate at weaker defects, in this case GBs.
- Authors:
-
- Arizona State Univ., Tempe, AZ (United States). Ira A. Fulton Schools of Engineering
- Sichuan Univ., Chengdu (China). Peac Inst. of Multiscale Sciences
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Arizona State Univ., Tempe, AZ (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1460718
- Report Number(s):
- DOE-ASU-02005-5
Journal ID: ISSN 1073-5623; PII: 2482; TRN: US1901909
- Grant/Contract Number:
- NA0002005
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
- Additional Journal Information:
- Journal Volume: 46; Journal Issue: 10; Journal ID: ISSN 1073-5623
- Publisher:
- ASM International
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; spall; voids; shapes; statistics; heat treatment; damage mode
Citation Formats
Brown, Andrew David, Wayne, Leda, Pham, Quan, Krishnan, Kapil, Peralta, Pedro, Luo, Sheng-Nian, Patterson, Brian M., Greenfield, Scott, Byler, Darrin, McClellan, Kenneth J., Koskelo, Aaron, Dickerson, Rob, and Xiao, Xianghui. Microstructural Effects on Damage Nucleation in Shock-Loaded Polycrystalline Copper. United States: N. p., 2014.
Web. doi:10.1007/s11661-014-2482-z.
Brown, Andrew David, Wayne, Leda, Pham, Quan, Krishnan, Kapil, Peralta, Pedro, Luo, Sheng-Nian, Patterson, Brian M., Greenfield, Scott, Byler, Darrin, McClellan, Kenneth J., Koskelo, Aaron, Dickerson, Rob, & Xiao, Xianghui. Microstructural Effects on Damage Nucleation in Shock-Loaded Polycrystalline Copper. United States. https://doi.org/10.1007/s11661-014-2482-z
Brown, Andrew David, Wayne, Leda, Pham, Quan, Krishnan, Kapil, Peralta, Pedro, Luo, Sheng-Nian, Patterson, Brian M., Greenfield, Scott, Byler, Darrin, McClellan, Kenneth J., Koskelo, Aaron, Dickerson, Rob, and Xiao, Xianghui. Fri .
"Microstructural Effects on Damage Nucleation in Shock-Loaded Polycrystalline Copper". United States. https://doi.org/10.1007/s11661-014-2482-z. https://www.osti.gov/servlets/purl/1460718.
@article{osti_1460718,
title = {Microstructural Effects on Damage Nucleation in Shock-Loaded Polycrystalline Copper},
author = {Brown, Andrew David and Wayne, Leda and Pham, Quan and Krishnan, Kapil and Peralta, Pedro and Luo, Sheng-Nian and Patterson, Brian M. and Greenfield, Scott and Byler, Darrin and McClellan, Kenneth J. and Koskelo, Aaron and Dickerson, Rob and Xiao, Xianghui},
abstractNote = {Polycrystalline copper samples with varying thermomechanical histories were shock loaded to induce spall via laser-driven plate impacts at low shock stress (<6 GPa). Electron backscattering diffraction was used to obtain statistics on grain boundary (GB) misorientations within the spall plane and at all GBs that contained damage. Specimens with pre-existing plastic deformation showed dominant intergranular damage at boundaries in the 25 to 50 deg misorientation range, while heat-treated samples had mixed trans- and intergranular damage with a lessened disorientation influence at damaged GBs. 3-D X-ray tomography data were used to analyze global volume statistics and qualitatively inspect the shape of voids present in samples of varying thermomechanical histories. It was found that annealed samples had a mixed mode of spherical and sheet-like voids, indicative of trans- and intergranular damage, respectively, and the microstructure with the highest number of Σ3 twin boundaries had the highest concentration of spherical voids. Data from a plastically pre-strained sample showed a dominance of needle- and sheet-like voids, indicating primarily intergranular damage due to the higher strength of the bulk material forcing the damage to nucleate at weaker defects, in this case GBs.},
doi = {10.1007/s11661-014-2482-z},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 10,
volume = 46,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2014},
month = {Fri Aug 15 00:00:00 EDT 2014}
}
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Works referencing / citing this record:
The void nucleation mechanism within lead phase during spallation of leaded brass
journal, April 2018
- Yang, Yang; Wang, Can; Chen, Xingzhi
- Philosophical Magazine, Vol. 98, Issue 21
Fracture mechanisms of spinodal alloys
journal, August 2018
- Das, Arpan; Basak, Chandra Bhanu
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3-D characterization of incipient spallation response in cylindrical copper under sweeping detonation
journal, March 2017
- Yang, Yang; Jixiong, Chen; Zhaoliang, Guo
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