The Role of Carbide Morphology on Low Cycle Fatigue Behavior of Iron-Carbon Alloys.
WATERVLIET ARSENAL N Y
Pagination or Media Count:
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
- Metallurgy and Metallography