Anisotropic effects of radiation-induced hardening in nuclear structural materials: A review
Anisotropic effects of radiation-induced hardening in nuclear structural materials: A review
复制标题
DOI：
10.1016/j.jnucmat.2022.153571
复制
发表时间：
2022-01
影响因子：
3.1
通讯作者：
Huilong Yang
中科院分区：
文献类型：
--
作者：
Huilong Yang
辐射诱导硬化是理解核材料辐射脆化和选择新材料的重要指标。RIH的研究主要基于材料具有均匀微观结构的假设。然而，在实际应用中，材料的显微组织往往表现出很强的取向织构、层状晶界等不均匀性，从而导致材料的RIH各向异性。本文综述了近年来核结构材料中RIH各向异性效应的研究进展，并对可能的影响因素进行了讨论。了解这种各向异性的影响RIH被认为是必要的，不仅提供了一个精确的评价反应堆中的当前结构材料的降解行为，而且为未来的核系统的新材料的开发。
Radiation-induced hardening (RIH) is an important indicator for understanding the radiation-induced embrittlement and for new materials’ selection for the core components in various nuclear energy systems. RIH has been studied mainly based on an assumption that the material has a homogeneous microstructure. However, in practical applications, the microstructure always exhibits an inhomogeneity such as strong texture in crystal orientation, lamellar grain boundary, consequently bringing anisotropy in RIH in these materials. In this review article, the recent anisotropic effects of RIH in nuclear structural materials are summarized, and the possible influencing factors are further discussed. Understanding such anisotropic effects of RIH is considered necessary not only for providing a precise evaluation of the in-reactor degradation behaviors of current structural materials, but also for the development of new materials for future nuclear systems.