The corrosion of nickel-base alloy 625 in sub- and supercritical aqueous solutions of oxygen: A long time study

被引：37

作者：

Kritzer, P ^{[1
]}

Boukis, N ^{[1
]}

Dinjus, E ^{[1
]}

机构：

[1] Forschungszentrum Karlsruhe, ITC, D-76021 Karlsruhe, Germany

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 1999年 / 18卷 / 22期

关键词：

D O I：

10.1023/A:1006607608189

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aqueous solution containing oxygen was continuously pumped through a pressure tube made of nickel-base alloy with a flow rate of 1 g/min; during the total reaction time of 800h, nearly 50 kg of solution passed the reactor. Following the experiment, the tube was filled with epoxy resin to protect and fix the corrosion products. The tubes were cut along their longitudinal axis and examined metallography. The solid corrosion products were identified with a scanning electron microscope equipped with an energy-dispersive X-ray detector (SEM-EDX). Dissolved corrosion products were quantified with Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Chromate and molybdate were detected photometrically with diphenylcarbacide and phenylfluorone as indicators.

引用

页码：1845 / 1847

页数：3

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