Comparability and accuracy of time of wetness sensing methods relevant for atmospheric corrosion

被引：56

作者：

Schindelholz, E. ^{[1
]}

Kelly, R. G. ^{[1
]}

Cole, I. S. ^{[2
]}

Ganther, W. D. ^{[2
]}

Muster, T. H. ^{[2
]}

机构：

[1] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA

[2] CSIRO, Mat Sci & Engn, Clayton, Vic 3168, Australia

来源：

CORROSION SCIENCE | 2013年 / 67卷

关键词：

Atmospheric corrosion (C); METAL-SURFACES; AEROSOLS; DURATION; MODEL;

D O I：

10.1016/j.corsci.2012.10.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The performance of three time of wetness (TOW) determination methods during outdoor exposure was examined. Two impedance-based TOW sensor types, RH, and temperature sensors were exposed to coastal marine and laboratory environments for up to three months. The sensor and ISO 9223 methods examined provided incomparable estimates. Inaccuracy of the ISO method originated from a humidity threshold well above the drying point of deposited aerosols and differences between surface and ambient RH. TOW sensor accuracy was linked to electrode configuration. Small electrode spacing was demonstrated to be required to capture the range of wetting events of importance to atmospheric corrosion. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：233 / 241

页数：9

共 33 条

[1] MARINE AEROSOL CHEMISTRY AT CAPE GRIM, TASMANIA, AND TOWNSVILLE, QUEENSLAND [J].

ANDREAE, MO .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1982, 87 (NC11) :8875-8885

[2]

[Anonymous], 1992, 9225 ISO

[3]

[Anonymous], 1992, 92231992E ISO

[4]

[Anonymous], 1990, PRINCIPLES ENV PHYS

[5] Experimental determination of duration of wetness on metal surfaces [J].

Cole, I. S. ;

Ganther, W. D. .

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2008, 43 (02) :156-162

[6] Field studies of surface cleaning and salt retention on openly exposed metal plates [J].

Cole, I. S. ;

Ganther, W. D. ;

Lau, D. .

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2006, 41 (04) :310-320

[7] A study of the wetting of metal surfaces in order to understand the processes controlling atmospheric corrosion [J].

Cole, IS ;

Ganther, WD ;

Sinclair, JD ;

Lau, D ;

Paterson, DA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (12) :B627-B635

[8] Holistic model for atmospheric corrosion - Part 6 - From wet aerosol to salt deposit [J].

Cole, IS ;

Lau, D ;

Paterson, DA .

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2004, 39 (03) :209-218

[9] Time of wetness in tropical climate:: Considerations on the estimation of TOW according to ISO 9223 standard [J].

Corvo, F. ;

Perez, T. ;

Martin, Y. ;

Reyes, J. ;

Dzib, L. R. ;

Gonzalez-Sanchez, J. ;

Castaneda, A. .

CORROSION SCIENCE, 2008, 50 (01) :206-219

[10] Infrared spectroscopy of model tropospheric aerosols as a function of relative humidity: Observation of deliquescence and crystallization [J].

Cziczo, DJ ;

Nowak, JB ;

Hu, JH ;

Abbatt, JPD .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D15) :18843-18850

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