文献类型：期刊文献

英文题名：Microstructure of electrodeposited tungsten coatings after 30 keV helium ion implantation

作者：Sun, Ningbo[1];Lang, Shaoting[2];Zhang, Yingchun[3]

第一作者：孙宁波

通讯作者：Lang, ST[1]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, 191 Jinsui Rd, Xinxiang 453003, Henan, Peoples R China;[2]Xinxiang Univ, Sch Mech & Elect Engn, 191 Jinsui Rd, Xinxiang 453003, Henan, Peoples R China;[3]Univ Sci & Technol Beijing, Sch Mat Sci & Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Mech & Elect Engn, 191 Jinsui Rd, Xinxiang 453003, Henan, Peoples R China.|[1107111]新乡学院机电工程学院;[11071]新乡学院;

年份：2019

卷号：144

起止页码：164-171

外文期刊名：FUSION ENGINEERING AND DESIGN

收录：;EI(收录号：20192006934410);Scopus(收录号：2-s2.0-85065609911);WOS:【SCI-EXPANDED(收录号:WOS:000488300500023)】；

基金：The authors gratefully acknowledge the financial support of National Natural Science Foundation of China (grant numbers: 51772022 and 51801171).

语种：英文

外文关键词：Electrodeposition; Tungsten coating; Helium ion implantation; Microstructure evolution; Grain orientation

摘要：Compact and smooth tungsten coatings on nuclear grade graphite (IG-430) substrate were successfully prepared by an electrodeposition method from Na2WO4 - WO3 molten salt. The average grain size and the thickness of the prepared coating was about 20.34 mu m and 120 mu m, respectively. In addition, the electrodeposited tungsten coatings were subjected to ion implantation with 30 keV helium (He) ions to different fluences to evaluate their irradiation resistances. The microstructure evolution of the electrodeposited tungsten coatings was investigated. The results show that all samples suffered surface blistering after ion implantation, and the tungsten coating surface suffered more morphology changes with the increase of ion fluences. Serious blistering, ripple-like structure and grain boundary separation were formed on the coating surfaces after implantation of the highest He fluence of 1 x 10(18) cm(-2). Moreover, the levels of grain damage were dependent on the tungsten grain orientations. The levels of damage on tungsten grains with low index orientations increased in the order of (100), (110), and (111).