Technique for measuring stress corrosion cracking of metallic electrodes in aqueous solutions

K Habib; G Carmichael; R Lakes; W Stwalley

doi:10.5006/1.3316060

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Technique for measuring stress corrosion cracking of metallic electrodes in aqueous solutions

Journal article

Peer reviewed

Technique for measuring stress corrosion cracking of metallic electrodes in aqueous solutions

K Habib, G Carmichael, R Lakes and W Stwalley

Corrosion (Houston, Tex.), Vol.49:5(5), pp.354-362

05/01/1993

DOI: 10.5006/1.3316060

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Abstract

A mathematical model relating deformation to electrochemical behaviors of metals in aqueous solution has been developed. The model was established based upon principles of holographic interferometry for measuring microscopic deformation and of electrochemistry for measuring the corrosion of metals, i.e., anodic dissolution current. The model can be used to calculate the stress corrosion of metals under a constant load or displacement in a polarized or unpolarized condition. The current density of metals can be calculated as a function of imposed deformations. The model was used to calculate the stress corrosion behavior of a nickel electrode under a constant load in 1 N H[sub 2]SO[sub 4] solution. The calculation was based on a hypothetical optical arrangement of the holographic interferometry as well as on empirical parameters of Ni electrochemistry in the solution. The study was successful in developing an experimental technique for investigating the influence of deformation on corrosion. The development of the technique was based on a new optical transducer. The new transducer incorporated electrochemical methods with those of holographic interferometry. The transducer was capable of measuring microscopic deformation and the corresponding anodic dissolution current of the surface of metal simultaneously. As a result, data on stress corrosion tests of a molybdenum electrode in 0.75 N KCl and a nickel electrode in 1 N H[sub 2]SO[sub 4] were obtained.

ELECTROCHEMISTRY

HALIDES

CHLORINE COMPOUNDS

CALCULATION METHODS

HYDROGEN COMPOUNDS

TRANSITION ELEMENTS

STRESS CORROSION

ELECTRODES

CORROSION

MEASURING METHODS

SULFURIC ACID

ALKALI METAL COMPOUNDS

ELEMENTS

METALS

CHEMICAL REACTIONS

CHEMISTRY

POTASSIUM CHLORIDES

DISPERSIONS

MOLYBDENUM

MATHEMATICAL MODELS

CURRENT DENSITY

MATERIALS SCIENCE

DEFORMATION

POTASSIUM COMPOUNDS

SOLUTIONS

MIXTURES

INORGANIC ACIDS

360105 - Metals & Alloys- Corrosion & Erosion

NICKEL

CHLORIDES

HALOGEN COMPOUNDS

INTERFEROMETRY

AQUEOUS SOLUTIONS

CRACK PROPAGATION

Details

Title: Subtitle: Technique for measuring stress corrosion cracking of metallic electrodes in aqueous solutions
Creators: K Habib - Kuwait Inst. for Scientific Research, Safat (Kuwait)
G Carmichael
R Lakes
W Stwalley - Univ. of Iowa, Iowa City (United States)
Resource Type: Journal article
Publication Details: Corrosion (Houston, Tex.), Vol.49:5(5), pp.354-362
Publisher: United States
DOI: 10.5006/1.3316060
ISSN: 0010-9312
eISSN: 1938-159X
Language: English
Date published: 05/01/1993
Academic Unit: Nursing; Civil and Environmental Engineering; Chemical and Biochemical Engineering
Record Identifier: 9984004086402771

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