Examination of the α-ω two-phase shock-induced microstructure in zirconium and titanium
Abstract
Omega (ω) phase is formed in alpha (α) zirconium during dynamic loading and can be retained in the recovered material. The pathway for the α to ω change (or the reverse transformation) is not well understood. Zirconium was shock-loaded and the resulting two-phase microstructure was examined. Electron backscatter diffraction (EBSD) was used to characterize the orientation relationships and habit planes between phases to understand the pathways between α and ω phases and compare to Molecular Dynamics (MD) simulations. Based on key microstructural features, a significant amount of α phase appears to have originated from the reverse transformation from ω-Zr on unloading. Results of microstructural analysis will be discussed, along with implications toward phase transformation pathways.
- Authors:
-
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of New South Wales, Sydney, NSW (Australia)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Colorado School of Mines, Golden, CO (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1544754
- Report Number(s):
- LA-UR-15-26063
Journal ID: ISSN 0094-243X
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1793; Journal Issue: 1; Conference: SHOCK COMPRESSION OF CONDENSED MATTER, Tampa Bay, FL (US), 14 Jun - 19 Jun 2015; Journal ID: ISSN 0094-243X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 97 MATHEMATICS AND COMPUTING; zirconium, alpha, omega, shock, dynamic loading, titanium
Citation Formats
Morrow, Benjamin M., Escobedo, J. Pablo, Field, Robert D., Dickerson, Robert M., Dickerson, Patricia O., Trujillo, Carl P., and Cerreta, Ellen K. Examination of the α-ω two-phase shock-induced microstructure in zirconium and titanium. United States: N. p., 2017.
Web. doi:10.1063/1.4971658.
Morrow, Benjamin M., Escobedo, J. Pablo, Field, Robert D., Dickerson, Robert M., Dickerson, Patricia O., Trujillo, Carl P., & Cerreta, Ellen K. Examination of the α-ω two-phase shock-induced microstructure in zirconium and titanium. United States. https://doi.org/10.1063/1.4971658
Morrow, Benjamin M., Escobedo, J. Pablo, Field, Robert D., Dickerson, Robert M., Dickerson, Patricia O., Trujillo, Carl P., and Cerreta, Ellen K. Fri .
"Examination of the α-ω two-phase shock-induced microstructure in zirconium and titanium". United States. https://doi.org/10.1063/1.4971658. https://www.osti.gov/servlets/purl/1544754.
@article{osti_1544754,
title = {Examination of the α-ω two-phase shock-induced microstructure in zirconium and titanium},
author = {Morrow, Benjamin M. and Escobedo, J. Pablo and Field, Robert D. and Dickerson, Robert M. and Dickerson, Patricia O. and Trujillo, Carl P. and Cerreta, Ellen K.},
abstractNote = {Omega (ω) phase is formed in alpha (α) zirconium during dynamic loading and can be retained in the recovered material. The pathway for the α to ω change (or the reverse transformation) is not well understood. Zirconium was shock-loaded and the resulting two-phase microstructure was examined. Electron backscatter diffraction (EBSD) was used to characterize the orientation relationships and habit planes between phases to understand the pathways between α and ω phases and compare to Molecular Dynamics (MD) simulations. Based on key microstructural features, a significant amount of α phase appears to have originated from the reverse transformation from ω-Zr on unloading. Results of microstructural analysis will be discussed, along with implications toward phase transformation pathways.},
doi = {10.1063/1.4971658},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1793,
place = {United States},
year = {Fri Jan 13 00:00:00 EST 2017},
month = {Fri Jan 13 00:00:00 EST 2017}
}
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