CHEMICAL-ANALYSIS OF PASSIVATED AND OXIDIZED LAYERS ON FECR AND FETI ALLOYS BY SOFT-X-RAY ABSORPTION-SPECTROSCOPY

被引：33

作者：

SORIANO, L

ABBATE, M

DEGROOT, FMF

ALDERS, D

FUGGLE, JC

HOFMANN, S

PETERSEN, H

BRAUN, W

机构：

[1] MAX PLANCK INST MET ORSCH,INST WERKSTOFFWISSENSCH,W-7000 STUTTGART,GERMANY

[2] BERLINER ELEKTRONENSPEICHERRING GESELLSCH SYNCHROTRONSTRAHLUNG,W-1000 BERLIN 33,GERMANY

[3] UNIV AUTONOMA MADRID,DEPT FIS APLICADA C-XII,E-28049 MADRID,SPAIN

来源：

SURFACE AND INTERFACE ANALYSIS | 1993年 / 20卷 / 01期

关键词：

D O I：

10.1002/sia.740200105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The chemical differences between passivated and oxidized layers on 17.5 at.% FeCr and 5 at.% FeTi alloys are analysed by means of soft x-ray absorption spectroscopy (XAS). The relative absorption strengths were used to obtain a quantitative estimation of the composition of the layers. In FeCr, the passivated layer shows a relative Cr enrichment of 34 at.% with respect to the oxidized surface. In addition, Cr2O3 has been identified as the main oxide formed in the passivated layer of FeCr. By contrast, in FeTi, the results are consistent with the formation of a ternary oxide. The potential of XAS in the study of oxidation and passivation is discussed.

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页码：21 / 26

页数：6

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