Oxidation of ferritic and ferritic-martensitic steels in flowing and static supercritical water

被引：82
|
作者：
Zhang, Nai-qiang [1 ,2 ,3 ]
Zhu, Zhong-liang [1 ]
Xu, Hong [1 ]
Mao, Xue-ping [1 ]
Li, Ju [2 ,3 ]
机构：
[1] North China Elect Power Univ, Minist Educ, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China
[2] MIT, Dept Nucl Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
来源：
CORROSION SCIENCE | 2016年 / 103卷
基金：
中国国家自然科学基金;
关键词：
Steel; SEM; XRD; Oxidation; BI EUTECTIC ALLOY; CHEMICAL-POTENTIAL DISTRIBUTION; TEMPERATURE AQUEOUS CORROSION; COAL POWER-PLANT; FE-9CR-1MO STEEL; VOID FORMATION; BEHAVIOR; MECHANISM; HCM12A; IRON;
D O I：
10.1016/j.corsci.2015.10.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation of ferritic steel and ferritic-martensitic steel was investigated by exposure to flowing and static supercritical water (SCW) at 550-600 degrees C. The oxidation kinetic curves follow parabolic and near cubic rate equations for the samples exposed to flowing and static SCW, respectively. The phase analysis shows the presence of hematite, magnetite and spinel in flowing SCW while only the magnetite and spinel phases are identified in static SCW. The mechanism of the formation of hematite and the effect of the flow state of SCW on the time exponent of oxidation kinetics are discussed. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：124 / 131
页数：8
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