TY - JOUR
T1 - Influence of helium ion irradiation damage behavior after laser thermal shock of W-2%vol Y2O3 composites
AU - Yao, Gang
AU - Tan, Xiao Yue
AU - Luo, Lai Ma
AU - Zan, Xiang
AU - Xu, Yue
AU - Xu, Qiu
AU - Zhu, Xiao Yong
AU - Tokunaga, Kazutoshi
AU - Wu, Yu Cheng
N1 - Funding Information:
This work was supported by the National Key Research and Development Program of China (No.2017YFE0302600), the National Natural Science Foundation of China (grant No. 21671145), the Foundation of Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province (15CZS08031), and the 111 Project (B18018).
Funding Information:
This work was supported by the National Key Research and Development Program of China (No. 2017YFE0302600 ), the National Natural Science Foundation of China (grant No. 21671145 ), the Foundation of Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province ( 15CZS08031 ), and the 111 Project ( B18018 ). Appendix A
PY - 2020/3
Y1 - 2020/3
N2 - W-2%vol Y2O3 composite material were prepared by wet-chemical and rolling methods. A comparative study was conducted with commercially pure tungsten. The laser thermal shock and the damage behavior of the material after helium ion irradiation were studied. The damage behavior was analyzed through X-ray diffractometry, field emission scanning electron microscopy, focused ion beam, field emission transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Results showed that W–Y2O3 composite material have higher resistance to laser thermal shock than pure tungsten. Helium ion irradiation further illustrated that the cracking caused by laser thermal shock is dominated by intergranular cracks. In addition, tungsten matrix damage is associated with grain orientation deformation after the helium ion irradiation of pure tungsten and W–Y2O3 composite material, and the grain orientation resistance to helium ion irradiation damage is higher than that to increasing grain boundary density. Several helium bubbles were found in the tungsten matrix, the fuzz structure, and the Y2O3 particles, and all the helium bubbles were polyhedral rather than spherical.
AB - W-2%vol Y2O3 composite material were prepared by wet-chemical and rolling methods. A comparative study was conducted with commercially pure tungsten. The laser thermal shock and the damage behavior of the material after helium ion irradiation were studied. The damage behavior was analyzed through X-ray diffractometry, field emission scanning electron microscopy, focused ion beam, field emission transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Results showed that W–Y2O3 composite material have higher resistance to laser thermal shock than pure tungsten. Helium ion irradiation further illustrated that the cracking caused by laser thermal shock is dominated by intergranular cracks. In addition, tungsten matrix damage is associated with grain orientation deformation after the helium ion irradiation of pure tungsten and W–Y2O3 composite material, and the grain orientation resistance to helium ion irradiation damage is higher than that to increasing grain boundary density. Several helium bubbles were found in the tungsten matrix, the fuzz structure, and the Y2O3 particles, and all the helium bubbles were polyhedral rather than spherical.
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U2 - 10.1016/j.pnucene.2020.103241
DO - 10.1016/j.pnucene.2020.103241
M3 - Article
AN - SCOPUS:85077504781
SN - 0149-1970
VL - 121
JO - Progress in Nuclear Energy
JF - Progress in Nuclear Energy
M1 - 103241
ER -