SEDL / STP / STP513-EB / STP34121S

Fatigue Crack Propagation of D6ac Steel in Air and Distilled Water

Paris, PC
Del Research Corporation, Hellertown, Pa.

Bucci, RJ
Del Research Corporation, Hellertown, Pa.

Little, CD
General Dynamics Corporation, Fort Worth, Tex.

Pages: 22    Published: Jan 1972

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Abstract

Fatigue crack propagation studies were conducted on a D6ac steel. The tests were performed in room air and distilled water environments all at room temperature. Fatigue crack propagation rates were enhanced in the water environment with results being strongly dependent upon test frequency, the lower test frequencies exhibiting the higher crack growth rates. A simple superposition technique, which qualitatively accounts for the observed frequency trends was examined.