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Title: Microstructure and mechanical properties of pure copper wire produced by shear assisted processing and extrusion

Abstract

Shear assisted processing and extrusion (ShAPE) process can consolidate powdered materials and simultaneously extrude wire or tube with improved properties. We successfully produced copper wire extrusions from powder and solid materials for the first time. The extrusion pressure of ShAPE process is at least two times less than that required for conventional extrusion. We used optical microscopy to inspect and validate the integrity of extrudates. It shows that the microstructure was refined and dynamically recrystallized to equiaxial grains. Compared to the annealed copper wire, ShAPE processed wire has 80% higher yield strength, 15% higher ultimate tensile strength and 20% higher ductility. These were correlated with refined grain size and sub-structuring observed via electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM).

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [2];  [3];  [3];  [3];  [1]
  1. BATTELLE (PACIFIC NW LAB)
  2. General Motor
  3. General Motors
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1581970
Report Number(s):
PNNL-SA-147051
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
JOM. The Journal of the Minerals, Metals and Materials Society
Additional Journal Information:
Journal Volume: 71; Journal Issue: 12
Country of Publication:
United States
Language:
English
Subject:
Copper, Wire, Shear Assisted Processing and Extrusion, Friction Extrusion

Citation Formats

Li, Xiao, Overman, Nicole R., Roosendaal, Timothy J., Olszta, Matthew J., Zhou, Chen, Wang, Hongliang, Perry, Thomas A., Schroth, James G., and Grant, Glenn J. Microstructure and mechanical properties of pure copper wire produced by shear assisted processing and extrusion. United States: N. p., 2019. Web. doi:10.1007/s11837-019-03752-w.
Li, Xiao, Overman, Nicole R., Roosendaal, Timothy J., Olszta, Matthew J., Zhou, Chen, Wang, Hongliang, Perry, Thomas A., Schroth, James G., & Grant, Glenn J. Microstructure and mechanical properties of pure copper wire produced by shear assisted processing and extrusion. United States. doi:10.1007/s11837-019-03752-w.
Li, Xiao, Overman, Nicole R., Roosendaal, Timothy J., Olszta, Matthew J., Zhou, Chen, Wang, Hongliang, Perry, Thomas A., Schroth, James G., and Grant, Glenn J. Mon . "Microstructure and mechanical properties of pure copper wire produced by shear assisted processing and extrusion". United States. doi:10.1007/s11837-019-03752-w.
@article{osti_1581970,
title = {Microstructure and mechanical properties of pure copper wire produced by shear assisted processing and extrusion},
author = {Li, Xiao and Overman, Nicole R. and Roosendaal, Timothy J. and Olszta, Matthew J. and Zhou, Chen and Wang, Hongliang and Perry, Thomas A. and Schroth, James G. and Grant, Glenn J.},
abstractNote = {Shear assisted processing and extrusion (ShAPE) process can consolidate powdered materials and simultaneously extrude wire or tube with improved properties. We successfully produced copper wire extrusions from powder and solid materials for the first time. The extrusion pressure of ShAPE process is at least two times less than that required for conventional extrusion. We used optical microscopy to inspect and validate the integrity of extrudates. It shows that the microstructure was refined and dynamically recrystallized to equiaxial grains. Compared to the annealed copper wire, ShAPE processed wire has 80% higher yield strength, 15% higher ultimate tensile strength and 20% higher ductility. These were correlated with refined grain size and sub-structuring observed via electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM).},
doi = {10.1007/s11837-019-03752-w},
journal = {JOM. The Journal of the Minerals, Metals and Materials Society},
number = 12,
volume = 71,
place = {United States},
year = {2019},
month = {12}
}

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