The influence of peak shock stress on the quasi-static reload response of HCP metals

Journal Article · Wed Dec 12 04:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2833174· OSTI ID:21039550

Cerreta, E K; Gray, III, G T; Trujillo, C P; Brown, D W; Tome, C N ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Textured, high-purity hafnium has been shock loaded at 5 and 11 GPa, below the pressure reported for the {alpha}{open_square}{omega} phase transformation, 23 GPa. The specimens were 'soft caught' for post-shock characterization. Substructure of the shocked materials was investigated through transmission electron microscopy and texture evolution due to shock loading was probed with neutron diffraction. The deformation behavior of as-annealed hafnium under quasi-static conditions was compared to its response following shock prestraining. Reload response was correlated to defect generation and storage due to shock loading and compared with observations in other HCP metals such as Ti and Zr.

• OSTI ID: 21039550
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 955; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
CRYSTAL DEFECTS
DEFORMATION
HAFNIUM
HCP LATTICES
IMPURITIES
LOADING
NEUTRON DIFFRACTION
PHASE TRANSFORMATIONS
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
SHOCK WAVES
STRESSES
TRANSMISSION ELECTRON MICROSCOPY