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
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.
引用
收藏
页码:181 / 186
页数:6
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