中文摘要：

第一壁结构材料必须满足聚变堆极其严酷的工作环境要求,这是制约聚变堆发展的技术瓶颈之一。近年来发展起来的纳米结构氧化物弥散强化钢的特征性微观结构赋予了该材料优异的抗辐照性能,被视为第一壁结构材料的发展方向。本文简述了国内外第一壁材料的研究与发展概况。

英文摘要：

The first wall structural material of fusion reactors must meet extremely rigorous operation environment requirements and it is one of the key factors restricting the development of fusion reactors.Nano-structured oxide dispersion strengthened（ODS） steels are the leading candidates for fusion first wall due to their excellent irradiation resistance coming from their characteristic microstructures.This paper described briefly the current state of development and understanding of ODS steels.