Mechanism of Fatigue Enhancement in Selected High Strength Aluminum Alloys.
NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AERO MATERIALS DEPT
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The initial phase of an investigation concerned with the mechanism of fatigue enhancement in selected high strengthweight aluminum alloys was completed. Data indicates that in both X7080-T7 and X 7050, aluminum alloys fatigue enhancement is related to unique microstructures. In the case of the X7080 Al alloy it is the presence of aligned light etching regions and in the X 7050 alloy, it is the directional proliferation of precipitates predominately at grain boundaries. Author
- Properties of Metals and Alloys