Analysis of recrystallized volume fractions in uranium using electron backscatter diffraction

Authors


Rodney J. McCabe. Tel: 505 606 1649; fax: 505 667 8021; e-mail: rmccabe@lanl.gov

Summary

Electron backscatter diffraction was used to examine the recrystallization behaviour of warm, clock-rolled uranium. A new uranium preparation method was developed, resulting in acceptable specimen surface finishes nearly every time, even for as-rolled specimens. Recrystallized fractions were differentiated from unrecrystallized fractions using differences in the grain average misorientation, a measure of the internal level of misorientation within a grain. This new approach better estimates the recrystallized fraction than hardness measurements, and has the advantage over standard metallographic techniques of providing texture information.

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