Advancements in research on the corrosion behavior of neutron absorbing materials for spent nuclear fuel storageShow others and affiliations
2026 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 625, article id 156546Article, review/survey (Refereed) Published
Abstract [en]
Neutron absorbing materials are critical for the safe storage of spent nuclear fuel (SNF). These materials must not only possess high neutron absorption capabilities but also demonstrate long-term stability and resistance to corrosion. In this review, we classify the different types of neutron absorbing materials and analyze their advantages and limitations. The primary corrosion mechanisms are summarized, including the micro-galvanic effects induced by secondary phases and Cr-depleted regions, and the irradiation-accelerated corrosion caused by SNF irradiation. Additionally, we also discuss the influence of H3BO3 and temperature on the corrosion behavior of neutron absorbing materials. Recent scientific studies to alleviate corrosion effects are highlighted, including ameliorating Cr-depleted regions, mitigating surface defects, optimizing interface structures, introducing crystalline defects, increasing alloy chemical complexity and adding corrosion inhibitors. This review aims to provide valuable insights and methodologies for enhancing the corrosion resistance of neutron absorbing materials, thereby supporting the safe storage of SNF.
Place, publisher, year, edition, pages
Elsevier BV , 2026. Vol. 625, article id 156546
Keywords [en]
Corrosion mechanisms, Corrosion resistance strategies, Neutron absorbing materials, Spent nuclear fuel
National Category
Surface- and Corrosion Engineering
Identifiers
URN: urn:nbn:se:kth:diva-377848DOI: 10.1016/j.jnucmat.2026.156546Scopus ID: 2-s2.0-105030923424OAI: oai:DiVA.org:kth-377848DiVA, id: diva2:2043926
Note
QC 20260306
2026-03-062026-03-062026-03-06Bibliographically approved