Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500585 | Scripta Materialia | 2009 | 4 Pages |
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
Authors
P.S. De, R.S. Mishra, C.B. Smith,