Multi-Mbar Z Experiments and EOS Modeling of the Most Useful Titanium Alloy

Cutting edge shock compression research is moving towards ever increasing pressure or stress states into the Multi-Mbar range. The simple empirical material model approximations of the past are not adequate at these new pressure extremes. We extend the principal shock Hugoniot for Ti64 to more than...

Full description

Saved in:
Bibliographic Details
Main Authors: Kalita, P., Cochrane, K., Knudson, M., Ao, T., Hanshaw, H., Crockett, S., Swift, D.
Format: Conference Proceeding
Language:English
Subjects:
Earth Observing System
Electric shock
Mathematical models
Plasmas
Temperature distribution
Temperature measurement
Titanium alloys
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Cutting edge shock compression research is moving towards ever increasing pressure or stress states into the Multi-Mbar range. The simple empirical material model approximations of the past are not adequate at these new pressure extremes. We extend the principal shock Hugoniot for Ti64 to more than threefold compression, up to over 1.2 TPa with high-fidelity experimental shock compression data measured on Sandia's Z machine. A highly reliable multiphase Equation of State (EOS) for Ti64 is developed, spanning a broad range of temperature and pressures. Results demonstrate that the Hugoniot of the Ti64 alloy is stiffer than that of pure Ti and reveal that Ti64 melts on the Hugoniot at a significantly lower pressure and temperature than previously modelled.
ISSN:2576-7208
DOI:10.1109/ICOPS45740.2023.10481182