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Effect of Ceramic Coatings on Fatigue Strength of Metal
Author(s) -
PLANKENHORN W. J.
Publication year - 1954
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1954.tb14038.x
Subject(s) - fatigue limit , materials science , ceramic , composite material , stress (linguistics) , bending , cantilever , ingot , beam (structure) , metallurgy , structural engineering , philosophy , linguistics , alloy , engineering
A series of tests was conducted to determine the effect of porcelain enamels and ceramic coatings on the endurance limit and the fatigue life of ingot iron components subjected to flexure. The specimens were of the Krouse cantilever beam type. They were designed to provide a uniform bending triangle with a uniform stress throughout the test area. A completely reversed stress was applied by repeated bending in a standard motor‐driven fatigue‐testing unit. The results were plotted as S‐N curves with the stress plotted as the ordinate and the number of cycles to failure as the abscissa. A comparison of the curves for the metal alone and for the coated metal showed that ceramic coatings noticeably improved the fatigue strength and also the fatigue life at stresses above the endurance limit.