An investigation of the corrosion of WC-Co cermets in CN--containing aqueous solutions. Part II: Synchrotron-based high lateral-resolution XPS study

被引：16

作者：

Bozzini, Benedetto ^{[1
]}

Dalmiglio, Matteo ^{[3
]}

De Gaudenzi, Gian Pietro ^{[2
]}

D'Urzo, Lucia ^{[1
]}

Gregoratti, Luca ^{[3
]}

机构：

[1] Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

[2] Films Spa, I-28877 Anzola Dossola, Italy

[3] Sincrotrone Trieste SCpA, I-34012 Trieste, Italy

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 08期

关键词：

metal matrix composites; cobalt; XPS; EROSION-CORROSION; BEHAVIOR; MICROSCOPY; HARDMETAL; COATINGS; SURFACE; PHOTOEMISSION; ENVIRONMENTS; MECHANISMS; VELOCITY;

D O I：

10.1016/j.corsci.2009.04.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the literature on the corrosion behaviour of WC-Co hardmetal grades, it has been pointed out that typically - corrosion resistance in several aqueous environments relies on the formation of pseudo-passivating layers on top of the two-phase material. So far. no detailed space-dependent study has been performed of the local structure and chemistry of such peculiar corrosion-product layers. In this paper, we propose a detailed chemical analysis - performed with a remarkably advanced synchrotron-based photo-electron microscope - of samples whose electrochemical (CV) and spectroelectrochemical (in situ SFG and ERS) characterisation has been published in a companion paper [B. Bozzini, B. Busson, G.P. De Gaudenzi, L D'Urzo. C. Mele, A. Tadjeddine, Corros. Sci. 49 (2007) 2392-2405]. (C) 2009 Elsevier Ltd. Ail rights reserved.

引用

页码：1675 / 1678

页数：4

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