Author Type

Graduate Student

Date of Award

1975

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Abstract

Experiments were conducted to investigate frequency dependence of sea water corrosion fatigue of notched 1018 steel under constant deflection, reverse bend test conditions. Frequencies of 1850, 1200, and 600 cycles per minute (CPM) were studied. Results indicate that frequency effects are not observed at high stresses, apparently due to the mechanical damage component of the fatigue process dominating over corrosion considerations. At low stresses reduced frequency resulted in decreased cycles to failure. Acidification of the crack tip solution is proposed as possibly responsible for this behavior. For specimens subjected to equal stress levels in the frequency dependent region, greater cathodic protection is required to mitigate corrosion fatigue for 600 CPM specimens (-0.86 volts standard calomel electrode) (V SCE) than for 1850 CPM specimens (-079V SCE).

Extent

58 p.

Comments

Thesis (M.S.E.)--Florida Atlantic University, 1975.|Thesis (M.S.E.)--Florida Atlantic University, 1975.

Identifier

FADT13731

Format

pdf

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