Article ID Journal Published Year Pages File Type
1500585 Scripta Materialia 2009 4 Pages PDF
Abstract

The effect of grain refinement on the fatigue life of 7075Al alloy was evaluated using a subsize fatigue specimen. High-cycle fatigue of fine-grained 7075Al showed substantial improvement over the parent 7075-T6 material. This improvement in fatigue life is ascribed to retardation of crack propagation caused by grain boundaries acting as barriers and a crack closure effect due to crack deflection.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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