Investigation of nickel-based alloys exposed to supercritical water environments

被引：14
|
作者：
Habicht, W [1 ]
Boukis, N [1 ]
Franz, G [1 ]
Dinjus, E [1 ]
机构：
[1] Forschungszentrum Karlsruhe, Inst Tech Chem, ITC CPV, D-76021 Karlsruhe, Germany
来源：
MICROCHIMICA ACTA | 2004年 / 145卷 / 1-4期
关键词：
FESEM/EDX; nickel based alloys; super critical water; corrosion;
D O I：
10.1007/s00604-003-0127-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Experimental tube reactors made of the nickel based alloys C-22 and Inconel 625 were exposed to supercritical water (SCW) environments. During this experiments, various inclusions and precipitates from a submicron size range to bulk scale-like layers were formed. The corrosion products and layers, located at the sub- and supercritical parts of the tubular flow reactors, were imaged and analyzed by field-emission scanning electron microscopy, combined with an energy-dispersive X-ray spectrometer (FESEM/EDX). The microanalysis was performed on metallographically prepared specimen. To obtain additional information regarding surface morphology, scanning force microscopy (SFM) and microhardness testing were applied at selected specimen.
引用
收藏
页码：57 / 62
页数：6
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