Abstract
The effect of heat treatments (as cast, T4, and T6) on the fatigue crack growth resistance of a squeeze-cast Al alloy, AC 4 CH, is investigated using plain specimens subjected to rotating bending. The principal results obtained are summarized as follows : (1) The fatigue strength of the squeeze-cast Al alloy is nearly equal to that of the wrought Al alloy. (2) The effect of heat treatment on the fatigue strength is smaller than that on the tensile strength. (3) An increase in tensile strength resulting from heat treatment brings an increase in resistance against both initiation and propagation of fatigue cracks.
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Schedule a callMore From: Transactions of the Japan Society of Mechanical Engineers Series A
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