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Short communication on Kinetics of grain growth and particle pinning in U-10 wt.% Mo
- Source :
- Journal of Nuclear Materials. 498:254-258
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The alloy U-10 wt% Mo was annealed at temperatures ranging from 700 °C to 900 °C for periods lasting up to 24 h. Annealed microstructures were examined using Electron Backscattered Diffraction (EBSD) to obtain average grain sizes and grain size distributions. From the temporal evolution of the average grain size, the activation energy of grain growth was determined to be 172.4 ± 0.961 kJ/mol. Grain growth over the annealing period stagnated after a period of 1–4 h. This stagnation is apparently caused by the pinning effect of second-phase particles in the materials. Back-scattered electron imaging (BSE) was used to confirm that these particles do not appreciably coarsen or dissolve during annealing at the aforementioned temperatures.
- Subjects :
- 010302 applied physics
Nuclear and High Energy Physics
Materials science
Annealing (metallurgy)
Metallurgy
Analytical chemistry
02 engineering and technology
Activation energy
021001 nanoscience & nanotechnology
Microstructure
01 natural sciences
Grain size
Grain growth
Nuclear Energy and Engineering
Electron diffraction
0103 physical sciences
General Materials Science
Grain boundary
0210 nano-technology
Electron backscatter diffraction
Subjects
Details
- ISSN :
- 00223115
- Volume :
- 498
- Database :
- OpenAIRE
- Journal :
- Journal of Nuclear Materials
- Accession number :
- edsair.doi...........a089232ec586641e5d6426dc1ae85b3f