Award Date

1-1-1991

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Committee Member

R. L. Skaggs

Number of Pages

80

Abstract

Conventional laboratory crevice corrosion testing requires approximately thirty days and is a simple go/no go test which does not indicate crevice incubation time and propagation. This study focuses on the effectiveness of potential monitoring to detect the onset of crevice corrosion and propagation for several titanium alloys in chloride environments. Utilizing this technique, crevice corrosion initiation is determined after several days, thus a shorter test period is required. This technique may well be suited for field as well as laboratory applications. Crevice corrosion incubation periods and corresponding potential behavior are investigated along with the effect of crevice to uncreviced surface area ratio. Under freely corroding conditions, which better simulate in-service conditions, the relationship between the corrosion potential (Ecorr) and crevice corrosion initiation and propagation was readily determined. Corresponding crevice corrosion initiation and steady state propagation surface morphology was also examined.

Keywords

Alloys; Corrosion; Crevice; Detection; Monitoring; Potential; Titanium

Controlled Subject

Materials science; Mechanical engineering

File Format

pdf

File Size

4536.32 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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