Accession Number : AD0739508

Title :   The Role of Carbide Morphology on Low Cycle Fatigue Behavior of Iron-Carbon Alloys.

Descriptive Note : Technical rept.,

Corporate Author : WATERVLIET ARSENAL N Y

Personal Author(s) : Milligan,R. Vincent

Report Date : FEB 1972

Pagination or Media Count : 30

Abstract : A series of iron-carbon binary alloys having a pearlitic and spheroidized microstructure were reverse cycled in a Uniaxial Tension-Compression mode. The carbon level varied from pure iron through four carbon levels up to 2%. The specimens had an hourglass shaped configuration. The diametral strain was measured and controlled with a ring-type LVDT. The diametral strain was converted and reported as longitudinal strain based on constancy of volume considerations. Total longitudinal strain range varied from 1% to 4%, giving cyclic lives in the region from 300-5,000. Increasing the carbon content significantly influenced the cyclic life for the pearlitic structure but had only a slight influence on the spheroidized material. (Author)

Descriptors :   (*IRON ALLOYS, FATIGUE(MECHANICS)), CARBON ALLOYS, PEARLITE, METALLOGRAPHY

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE