Oxidation of 316 stainless steel in supercritical water

被引：167

作者：

Sun, Mingcheng ^{[1
]}

Wu, Xinqiang ^{[1
]}

Zhang, Zhaoen ^{[1
]}

Han, En-Hou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 05期

关键词：

Stainless steel; XRD; Oxidation; STRESS-CORROSION CRACKING; OXIDE-FILMS; AQUEOUS-SOLUTIONS; VAPOR; TEMPERATURE; ALLOYS; METALS;

D O I：

10.1016/j.corsci.2009.03.008

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The oxide scales of 316 stainless steel (316 SS) have been examined after exposure to supercritical water (SCW) with 2.0% H2O2 for up to 250 h. The exposed samples were analyzed using weight measurement, scanning electron microscopy (SEM), and X-ray diffraction analysis (XRD). It was found that mass gain of all samples increased with increasing temperature and exposure time. Higher temperature SCW resulted in rougher surfaces and thicker oxide scales. Duplex layer oxide structures with Ni-enrichment at the oxide/metal interface developed on all samples exposed to SCW, which were identified as Fe2O3/Fe3O4+spinel/Cr2O3/Ni-enrichment/316 SS from the outer to inner layer. The possible oxidation mechanisms are also discussed. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1069 / 1072

页数：4

共 21 条

[1]

Inverse growth transport in thermal chromia scales on Fe-15Cr steels in oxygen and in water vapour and its effect on scale adhesion [J].