Pdf fatigue crack initiation in aerospace aluminum. These other elements include iron, silicon, copper, magnesium, manganese and zinc at levels that combined may make up as much as 15 percent of the alloy by weight. An aluminum alloy is a chemical composition where other elements are added to pure aluminum in order to enhance its properties, primarily to increase its strength. Aluminum alloys are second only to steels in use as structural metals. Crystal structure of aluminum, zinc, and their alloys.
Effect of slide burnishing basic parameters on fatigue. Each class represents a different type of micro structure because of these alloy differences. Fatigue crack initiation in aerospace aluminum alloys, components and structures. Applications car body body structures european aluminium. Aluminium is the third most abundant element after oxygen and silicon, and the most abundant metal in the earths crust. Essential properties of materials and back ground information.
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