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
收藏
页码：2291 / 2302
页数：12
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