High temperature oxidation and room temperature axial strength of pre-oxidized zircaloy-4 cladding after a simulated LOCA

JOURNAL OF NUCLEAR MATERIALS

卷:543

Article

Desquines, Jean¹  Duriez, Christian¹  Guilbert, Severine¹  Taurines, Tatiana¹ 

[1] IRSN Inst Radioprotect & Surete Nucl, PSN RES, F-13115 St Paul Les Durance, France

关键词: Loca;    Pre-oxidation;    High temperature oxidation;    Embrittlement;   

DOI  :  10.1016/j.jnucmat.2020.152559

来源: Elsevier

【 摘 要 】

The influence of the nuclear fuel cladding pre-oxidation on post-LOCA quench resistance was experimentally studied and then modeled. Adopting a separate effect approach, quenched high temperature oxidized samples were axially loaded in a mechanical device. The pre-existing oxide layer shows a complex influence that was interpreted and modeled using a simple approach reproducing the main observed phenomena. A new correlation was established to evaluate the oxygen enriched alpha-phase thickness and the zirconia layer growth is analyzed and modeled. These models and correlations were implemented in a failure prediction model finally compared to experimental results. (C) 2020 Elsevier B.V. All rights reserved.

【 授权许可】

Free