An study on accelerated corrosion testing of weathering steel

被引：83

作者：

Montoya, P. ^{[1
]}

Diaz, I. ^{[2
]}

Granizo, N. ^{[2
]}

de la Fuente, D. ^{[2
]}

Morcillo, M. ^{[2
]}

机构：

[1] Univ Antioquia, Ctr Res Innovat & Dev Mat CIDEMAT, SIU, Lab 330 331, Medellin, Colombia

[2] Natl Ctr Met Res CENIM CSIC, Madrid 28040, Spain

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2013年 / 142卷 / 01期

关键词：

Alloys; Corrosion; Electron microscopy (STEM; TEM and SEM); Fourier transform infrared spectroscopy (FTIR); Grazing incidence X-ray diffraction; ATMOSPHERIC CORROSION; RUST; MECHANISM;

D O I：

10.1016/j.matchemphys.2013.07.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper assesses the use of wet/dry cyclic laboratory corrosion tests that can provide information on the protective capacity of weathering steels in short times. Two steels were considered, a weathering steel ASTM A 242 Type 1 and a plain carbon steel (as reference), that were exposed in the atmosphere of Madrid (3 years) and in the following laboratory wet/dry cyclic tests: Cebelcor (10(-4) M Na2SO4) (945 h), Kesternich (0.2 L SO2) (2160 h) and Prohesion (2160 h). Characterisation of rust layers was done by XRD, FTIR, SEM, SKP and EIS. Wet/dry cyclic tests make it possible to shorten the testing time to assess in laboratory the protective capacity of rusts formed on weathering steels in the atmosphere. Some analogies between experimentation in the field and in the laboratory have been established. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：220 / 228

页数：9

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