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The Influence of Grain Size and Inter - Particle Spacing on the Fatigue Crack Propagation in SM45C Steel
Technical Paper
912536
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English
Abstract
To determine the effects of microstructure on the fatigue crack propagation behavior in SM45C steel, experimental investigations have been carried out with the specimens of different grain size and different spacings between the Fe3C particles. Fatigue and tensile tests were conducted and the quantitative analysis of the relations between the threshold stress intensity range and grain size, inter-particle spacing and yield stress were carried out. Some of the conclusions obtained are as fallows; (1) ΔKth was observed to increase with grain size and the spacing between the Fe3C particles. (2) In both pearlite and spheroidite microstructures, ΔKth was increased when yield stress was decreased.
Authors
Citation
Kim, H., Park, Y., and Lim, B., "The Influence of Grain Size and Inter - Particle Spacing on the Fatigue Crack Propagation in SM45C Steel," SAE Technical Paper 912536, 1991.Also In
References
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