Chemical and Phase Composition of Nanosized Oxide and Passive Films on Ni-Cr Alloys. II. XPS Analysis of Films Produced by Anodic Passivation of Alloys in 1 N H2SO4

被引：5
作者：
Andreev, Yu. Ya. [1 ]
Skryleva, E. A. [1 ]
Safonov, I. A. [1 ]
机构：
[1] Moscow State Inst Steel & Alloys, Moscow 119991, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2009年 / 45卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
IRON-CHROMIUM ALLOYS; FE/CR-ALLOYS; LAYERS;
D O I：
10.1134/S2070205109020099
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
XPS data of thin (1 to 2 nm) oxide films formed by the anodic passivation of Ni-2 at % Cr and Ni-6 at % Cr alloys in 1 N H2SO4 are discussed. Thermodynamic calculations of the solid-phase chemical reaction 3NiO + 2Cr = Cr2O3 + 3Ni are carried out taking into account the changes in the surface energy at the alloy oxide film interface along with the Gibbs energy change in the alloy oxidation reaction.
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页码：181 / 186
页数：6
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