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Figure 5
Histograms of grain size distribution before and after thermal cycling, evaluated using a 1° misorientation threshold. Recrystallization and grain growth during thermal cycling result in the formation of larger grains with a simplified grain boundary network. The number of small grains with diameters near 20 µm decreases, while the population of grains larger than 100 µm increases significantly after thermal cycling.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 3| May 2026| Pages 617-631
https://doi.org/10.1107/S1600577526001475
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