Microstructural analysis and corrosion behaviour of D9 stainless steel - Zirconium metal waste form alloys

被引：31

作者：

Bairi, Lipika Rani ^{[1
]}

Ningshen, S. ^{[1
]}

Mudali, U. Kamachi ^{[1
]}

Raj, Baldev ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Corros Sci & Technol Div, Kalpakkam 603102, Tamil Nadu, India

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 07期

关键词：

Stainless steel; Zirconium; Intermetallics; SEM; XRD; EIS; PHASES; MANAGEMENT;

D O I：

10.1016/j.corsci.2010.03.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metal waste form (MWF) alloys of D9 stainless steel with 5-20 wt.% zirconium (Zr) were cast and used for the present work. The microstructural analysis by scanning electron microscopy of as-cast MWF alloys showed the presence of two distinctly different phases. Phases identified by X-ray diffraction techniques are mostly iron-based gamma-austenite, Fe-Zr and Ni-Zr-type intermetallics. Corrosion properties evaluated by potentiodynamic polarization method in de-mineralized water at pH 1, 5, and 8 showed lower breakdown potential at pH 1 compared to pH 5 and 8. Impedance study showed a single semicircle curve with high polarization resistance indicating stable passive film under all conditions. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2291 / 2302

页数：12

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