The dynamical mechanical properties of tungsten under compression at working temperature range of divertors

Zhu, Caoxiang; Song, Yuntao; Peng, Xuebing; Yan, Weizhen; Mao, Xin; Li, Weixing; Qian, Xinyuan

doi:10.1016/j.jnucmat.2015.11.045

Cited by 13 publications

(2 citation statements)

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“…The dynamic impact tests were performed at room temperature with impact velocity of the strike bar of 4-10 m/s and an impact strain rate of 900-2500 s −1 . The dynamic mechanical parameters of the specimens could be calculated indirectly from the data recorded by the strain gauges [23]. Recently, high-performance Mg-RE-Zn alloys with profuse SFs have been reported by the utilization of casting, heat treatment, and hot extrusion [13][14][15][16][17].…”

Section: Methodsmentioning

confidence: 99%

“…The dynamic impact tests were performed at room temperature with impact velocity of the strike bar of 4-10 m/s and an impact strain rate of 900-2500 s −1 . The dynamic mechanical parameters of the specimens could be calculated indirectly from the data recorded by the strain gauges [23]. Specimens were cut, grinded, and polished along the extrusion direction (ED) and impact compression direction (CD), then etched using 4.2 g picric acid, 10 mL acetic acid, 70 mL ethanol, and 10 mL distilled water.…”

Section: Methodsmentioning

confidence: 99%

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Effect of 1wt%Zn Addition on Microstructure and Mechanical Properties of Mg-6Er Alloys under High Strain Rates

Ren²,

Kang³

et al. 2022

Metals

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In this study, we investigated the high strain rate response of Mg-6wt%Er alloys with 1wt%Zn addition by split Hopkinson pressure bar (SHPB) tests in a range of 900–2500 s−1. Their related microstructures were also characterized by optical microscopy (OM), scanning electron microscopy (SEM), electron back-scattering diffraction (EBSD), and transmission electron microscopy (TEM). In particular, the twinning and stacking faults (SFs) in Mg-6Er and Mg-6Er-1Zn alloys are characterized, and the interactions between twin/SFs and dislocations are analyzed in detail. Compared with twins, the dispersed and dense SFs seem to more readily interact with dislocations, resulting in the enhancement of the strength of alloys. Especially at a high strain rate of 1450 s−1, dislocations are prone to tangle around the twins and SFs, forming low-angle grain boundaries (LAGBs). The addition of Zn in Mg-6Er can make LAGBs more easily transform into high-angle grain boundaries (HAGBs) due to the existence of SFs.

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Section: Methodsmentioning

confidence: 99%

“…The dynamic impact tests were performed at room temperature with impact velocity of the strike bar of 4-10 m/s and an impact strain rate of 900-2500 s −1 . The dynamic mechanical parameters of the specimens could be calculated indirectly from the data recorded by the strain gauges [23]. Specimens were cut, grinded, and polished along the extrusion direction (ED) and impact compression direction (CD), then etched using 4.2 g picric acid, 10 mL acetic acid, 70 mL ethanol, and 10 mL distilled water.…”

Section: Methodsmentioning

confidence: 99%