2020
DOI: 10.1016/j.jnucmat.2020.152201
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EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

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Cited by 8 publications
(4 citation statements)
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“…The present result suggested that the dispersed particles of TiO 2 is stable to 1800 • C, maintaining the pinning effect on grain boundaries [8]. As a reference of the similar effect in previous research, the suppressing effect of K-doping on grain growth at high temperature was reported [10]. These results of indicates that both of bubble dispersion strengthening by potassium and oxide dispersion strengthening by TiO 2 can suppress the grain coarsening of secondary recrystallization.…”
Section: Resultssupporting
confidence: 86%
“…The present result suggested that the dispersed particles of TiO 2 is stable to 1800 • C, maintaining the pinning effect on grain boundaries [8]. As a reference of the similar effect in previous research, the suppressing effect of K-doping on grain growth at high temperature was reported [10]. These results of indicates that both of bubble dispersion strengthening by potassium and oxide dispersion strengthening by TiO 2 can suppress the grain coarsening of secondary recrystallization.…”
Section: Resultssupporting
confidence: 86%
“…Wang Hongjian and Yan Yutao [ 75 ], through annealing heat treatment of tungsten-rhenium alloy wires, found that annealing could significantly reduce the surface cracks and improve the bending strength of the alloy wires. L. Tanure et al [ 76 ] studied the microstructure distribution of pure and potassium-doped tungsten wires at different annealing temperatures. The longitudinal section of grain boundary diagrams of pure and doped tungsten wires at different annealing temperatures are shown in Figure 17 , where both wire materials maintain elongated grains in the initial state.…”
Section: Annealing Processmentioning
confidence: 99%
“… Grain boundary diagram of a longitudinal section of tungsten wire at different annealing temperatures [ 76 ]: ( a ) pure tungsten wire; ( b ) K-doped tungsten wire. …”
Section: Figurementioning
confidence: 99%
“…The designs of W-based alloys with ductile dopants are an effective means of mitigating these disadvantages. Potassium doping has already proved its efficiency in suppressing secondary recrystallization and controlling grain growth up to 1900 • C in tungsten thin wires, and therefore shows extraordinary properties at elevated temperatures [4]. Potassium-doped (K-doped) tungsten bulk material becomes an attractive candidate for the plasma-facing material as well [5][6][7][8][9].…”
Section: Introductionmentioning
confidence: 99%