Abstract
This paper involves the study of fatigue life of coated aluminium alloy Al 7075-T651 that is heat-treated under 100oC soaked in castor oil for three days. The specimen after heat treatment is subjected to fatigue test using rotary bending machine for number of cycles to fail under cyclic load of 15kgf, 25Kgf, and 50kgf.The life of the specimen is found and compared with uncoated specimen and improved life in number of cycle is noticed. The crack propagation and its type is analysed using scanning electron microscope for knowing the point of fracture and its initiation to failure.
Highlights
This paper involves the study of fatigue life of coated aluminium alloy Al 7075-T651 that is heat-treated under 100oC soaked in castor oil for three days
Since the specific gravity of aluminium is nearly 2.7g/cc, the aluminium alloy has a great role in aircraft sturrctues.Aluminium alloys are used in automobiles, aircrafts and in most of the manufacturing industries
The fatigue life of aluminium plays a vital role in aircraft applications
Summary
This paper involves the study of fatigue life of coated aluminium alloy Al 7075-T651 that is heat-treated under 100oC soaked in castor oil for three days. Aluminium alloys are extensively used material in the field of aerospace and engineering. The use of Aluminium alloy is greatly enhanced due to its good weight to strength property. The property such as non-heat treatable, good hardness, corrosion resistance and good thermal conductivity and electrical conductivity [1].
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