Silicon-containing ferritic/martensitic steel after exposure to oxygen-containing flowing lead-bismuth eutectic at 450 and 550 °C

被引：52

作者：

Schroer, Carsten ^{[1
]}

Koch, Verena ^{[1
,2
]}

Wedemeyer, Olaf ^{[1
]}

Skrypnik, Aleksandr ^{[1
]}

Konys, Juergen ^{[1
]}

机构：

[1] KIT, Inst Angew Mat Angew Werkstoffphys IAM AWP, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[2] Robert Bosch GmbH, Stuttgart, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2016年 / 469卷

关键词：

Fast reactor; Accelerator driven system; Liquid metal corrosion; Oxidation; CORROSION-RESISTANCE; AUSTENITIC STEEL; TEMPERATURE; OXIDATION; BEHAVIOR; T91;

D O I：

10.1016/j.jnucmat.2015.11.058

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A ferritic/martensitic (f/m) steel with 9 and 3 mass% of chromium (Cr) and silicon (Si), respectively, was tested on performance in flowing lead-bismuth eutectic (LBE) at 450 and 550 degrees C, each at concentrations of solved oxygen of both 10(-7) and 10(-6) mass%. The 9Cr-3Si steel generally exhibits the same basic corrosion modes as other f/m materials with 9 mass% Cr and typically lower Si content, namely Steel T91. The Si-rich steel shows an overall improved performance in comparison to T91 at 450 degrees C and 10(-7) mass% solved oxygen, but especially at 450 degrees C and 10(-6) mass% solved oxygen. The advantage of higher Si-content in 9Cr steel is less clear at 550 degrees C. Especially high oxygen content in flowing LBE at 550 degrees C, between >10(-6) mass% and oxygen saturation, seems detrimental for the high-Si material in respect of the initiation and progress of a solution-based corrosion.

引用

页码：162 / 176

页数：15

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