The Effect of Homogenization Heat Treatment on the Texture Evolution in U-10Mo Alloy

Schuessler, Benjamin J.; Field, David; Overman, Nicole R.; Joshi, Vineet V.

doi:10.1007/s11661-021-06349-8

The Effect of Homogenization Heat Treatment on the Texture Evolution in U-10Mo Alloy

Journal Article · 01 September 2021 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-021-06349-8· OSTI ID:1820962

Schuessler, Benjamin J. ^[1]; Field, David ^[2]; Overman, Nicole R. ^[3]; ^[3]

UNIVERSITY PROGRAMS
Washington State University
BATTELLE (PACIFIC NW LAB)

Uranium alloyed with 10 wt% Mo (U-10Mo) undergoes discontinuous precipitation (DP) when subjected to sub-eutectoid heat-treatment. It is hypothesized that the crystallographic texture of the U-10Mo can be modified to minimize the degree of DP, however the evolution of texture throughout the manufacturing process is not well understood. Crystallographic textures of two U-10Mo samples homogenized at 900°C and 1000°C were studied after uniaxial rolling and annealing. A total of 6 samples were analyzed upon rolling using a combination of hot and cold rolling conditions to strains of 83%, 90% and 97% and subsequently annealed at 700°C for one hour. Microstructures and textures were analyzed via electron backscatter diffraction (EBSD) for each homogenization, strain and post-annealed states. Results show that the U-10Mo exhibits typical rolling textures seen in body-centered cubic materials with increasing intensities of both a- and ?-fibers with increasing strain. After recrystallization, the texture appeared to be effectively randomized in all samples. Homogenization temperature showed no effect on the rolling and recrystallization behavior. Potential factors leading to the randomization of texture are discussed along with the implications of textures on the minimization of DP.

Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-76RL01830

OSTI ID:: 1820962

Report Number(s):: PNNL-SA-152490

Journal Information:: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 9 Vol. 52

Country of Publication:: United States

Language:: English

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