Investigation Of Damage Process Due To Fatigue On Heat Treated Aluminum 7075

Mohd Khairulnizam , Muhamat Nawawi (2010) Investigation Of Damage Process Due To Fatigue On Heat Treated Aluminum 7075. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The objectives of this research are to investigate the damage process due to the fatigue failure on heat treated Aluminum Alloy 7075 on the mechanical properties and microstructures structure. In this research, the aluminum alloy 7075 being used widely in automotive and aircraft industry because of it highest in strength level of all alloy. Besides that, many researches on this material behavior being discuss nowadays because of it important in safety and reliable. In the sample preparation, the aluminum alloy 7075 will be heated to T6 heat treatment process. Then, the RRA process is applied to the material in the T6 condition. The sample will be testing mechanically to investigate the tensile strength, hardness properties and the fatigue damage process to the Aluminum alloy 7075. Here, the result of the damage process will be discussed and at the same time, the surface structure of the fracture process for the fatigue failure also will be observed under optical microscope. From the result, the discussion about microstructure and damage phenomenon that lead to the degradation process of the aluminum alloy 7075- T6 will be covered. Lastly, the conclusion for the whole of the research will be covered based on the observation from the experimental and discussion.

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