期刊论文

Xiao, Detao(xiaodt@usc.edu.cn)

英文

Fusion Engineering and Design

0920-3796

2021

172

112746

10.1016/j.fusengdes.2021.112746

Credit author statement Zhen Wang: Conceptualization, Data curation, Writing-original draft. Haibiao Wu: Conceptualization, Data curation, Writing - original draft. Te Zhu: Data curation. Yamin Song: Data curation. Peng Zhang: Data curation. Baoyi Wang: Methodology. Detao Xiao: acquisition, Writing - review & editing. Xingzhong Cao: Project administration, acquisition, Writing - review & editing.

本校为第一机构

W and W-5wt%Re alloy were irradiated by 50 keV helium ions at RT, 200 degrees C, 350 degrees C and 500 degrees C to investigate the influence of temperature on the microdefects and surface morphology in the sample. The microdefects in the subsurface region and the surface damage caused by irradiation were characterized by Doppler broadening spectroscopy (DBS) of slow positron beam, transmission electron microscope (TEM) and scanning electron microscopy (SEM), respectively. The results show that a large number of vacancy-type defects were produced after helium ions irradiation, especially at 50...