Recovery and recrystallization kinetics of differently rolled, thin tungsten plates in the temperature range from 1325 °C to 1400 °C

Microstructural evolution in single tungsten fiber-reinforced tungsten composites during annealing: recrystallization and abnormal grain growth

“…Several pure tungsten plates warm-or cold-rolled to different rolling reductions have been studied in terms of their thermal stability (see e.g. [15][16][17][18][19][20][21]). Moderately rolled tungsten plates (see [15][16][17][18][19]) are sufficiently thermally stable to withstand microstructural changes at the expected temperatures of 800 °C for the first wall, but will not be able to endure the higher expected divertor temperatures of 1100 °C and above for the required two years.…”

Thermal stability of the microstructure in rolled tungsten for fusion reactors

“…(1) comparably thick tungsten plates from AT&M, Beijing, after warm rolling to a thickness reduction of 67 % (W67) [13], 80 % (W80) [14], and 90 % (W90) [15] and (2) thin tungsten plates from Plansee SE, Reutte, with final thicknesses of 2 mm, 1 mm, 0.5 mm and 0.2 mm [17,18]. The two former (TP2 and TP1) are solely warm-rolled (at an elevated temperature below the nominal recrystallization temperature), whereas additional cold rolling is applied for the thinnest two (TP0.5 and TP0.2).…”

An Attempt to Assess Recovery/Recrystallization Kinetics in Tungsten at High Temperature Using Statistical Nanoindentation Analysis

“…This approach is very suitable to highly deformed materials annealed at quite low temperatures, for which recovery mechanisms start rapidly and recrystallization mechanisms are delayed. It has been used with success to investigate recovery and recrystallization mechanisms in rolled thin tungsten plates by Ciucani et al [20]. When recrystallization and recovery overlap, it is necessary to use more advanced models [21] to separate their contributions to the strength change that takes place during annealing.…”