Atom probe study of chromium oxide spinels formed during intergranular corrosion

被引：29
作者：
La Fontaine, Alexandre [1 ]
Yen, Hung-Wei
Felfer, Peter J.
Ringer, Simon P.
Cairney, Julie M.
机构：
[1] Univ Sydney, Sch Aerosp Mech Mechatron Engn, Sydney, NSW 2006, Australia
来源：
SCRIPTA MATERIALIA | 2015年 / 99卷
关键词：
Atom probe tomography; Corrosion; Oxidation; Stainless steel; Chromium oxide spinels; OXIDATION BEHAVIOR; STAINLESS-STEELS; WATER-VAPOR; TOMOGRAPHY; ALLOYS; CR;
D O I：
10.1016/j.scriptamat.2014.09.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Atom probe microscopy has been used to study the inhomogeneous nature of chromium oxide spinels in intergranular corrosion of a 253 MA austenitic stainless steel after thermal cycling up to 970 degrees C in air. The results indicate that the non-continuous character of the spinel layers originates from nanoscale phases such as iron-rich oxides along the chromite grain boundaries and silicate particles. Their role in the rate of intergranular corrosion is discussed. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：1 / 4
页数：4
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