Microstructure evolutions of the W-TiC composite conducted by dual-effects from thermal shock and He-ion irradiation
作者机构：School of Materials Science and EngineeringHefei University of TechnologyHefei 230009China Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui ProvinceHefei 230009China Institute for Integrated Radiation and Nuclear ScienceKyoto UniversityOsaka-fuKyoto 590-0494Japan Research Institute for Applied MechanicsKyushu UniversityKasugaFukuoka 816-8580Japan National-Local Joint Engineering Research Centre of Nonferrous Metals and Processing TechnologyHefei 230009China
出 版 物：《Tungsten》 (钨科技（英文）)
年 卷 期：2019年第1卷第3期
页 面：213-219页
核心收录：
学科分类：08[工学] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：the National Natural Science Foundation of China(Grant No.51574101) the Fundamental Research Funds for the Central Universities(Grant Nos.PA2018GDQT0010,PA2019GDZC0096,JZ2019HGTA0040) the Foundation of Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province(15CZS08031) the Natural Science Foundation of Anhui Province(Grant Nos.201904b11020034,1908085ME115) the Foundation of Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province,the Open Foundation of Key Laboratory of Advanced Functional Materials,Devices of Anhui Province and Double First Class enhancing independent innovation and social service capabilities of Hefei University of Technology(Grant No.45000-411104/011)
主 题：Plasma-facing materials Wet-chemical method W-TiC composite Thermal shock He-ion irradiation
摘 要：Considering that tungsten(W)materials served as the plasma-facing material in the fusion reactor would be exposed to edge-localized modes(ELMs)-like thermal shock loading accompanied with He-ion irradiation,the W-TiC composite produced with a wet-chemical method was conducted by the dual effects from the laser beam thermal shock first and He-ion irradia-tion later in this *** microstructure changes of the W-TiC composite before and after two tests were characterized by scanning electron microscopy or transmission electron *** the laser beam thermal shock test,there was an obvious interface on the exposed surface of the W-TiC *** main cracks and melting areas could be found nearby the interface and center,***,a mixture of tungsten oxide and TiC was easy to aggregate and form into circle areas surrounding the melting *** thermal shock tested that W-TiC composite was then subjected to the He-ion *** typical features of fuzz structures could be detected on the surface of the W-TiC composite apart from the center of the melting ***,several nano-sized He bubbles deeply distributed at grain boundaries in the melting area,owing to the grain boundary functioning as the free path for He diffusion.
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