4-6 Characterization of Microstructure Evolution on SIMP and T91 Steel Irradiated with H and He-ions

• 作者: Cui Minghuan Fang Xuesong Jin Peng Pang Lilong Shen Tielong Wang Zhiguang Wei Kongfang Zhu Yabin
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 年，卷（期）: 2016,（1）
• 页码范围: 116-117
• 页数: 2页
• 分类号: O4

摘要

A novel full martensitic steel,SIMP steel,has been developed as a candidate structural and fuel cladding material for Accelerator Driven Subcritical(ADS)system.As well known that radiation damage effect in nuclear facility is a consequence of two basic types of damage,which include lattice atom displacement caused by irradiation and the foreign gas elements which are produced by(n,α)reaction.The inert gas helium has a vanishingly low solubility in metal and consequently is separated out to form small gas bubbles.Moreover,helium also plays an important part in the initial nucleation of voids which subsequently grow by accumulation of vacancies.It is therefore essential to acquire a comprehensive understanding of the behaviors of helium even hydrogen atoms and to use the information for the development of radiation resistant alloys.Microstructure evolution in SIMP and T91 steels irradiated with energetic He and H ions has been investigated by using Transmission Electron Microscopy(TEM)in the present work.