The application of tensile load in increments until the failure of the material was the main pu... more The application of tensile load in increments until the failure of the material was the main purpose of this test. Change in the material's length was recorded after every increment. The data until the failure was recorded and used to find the material's yielding strength, ductility, tensile strength, toughness, true tensile strength, fracture strength, true fracture strength, modulus of elasticity and estimate its toughness. Then, an engineering stress-strain graph was plotted. Finally the conversion formulas were used to come up with the true stress-strain curve. The material's mechanic features were also compared with the theoretical results. The physical properties were in the expected interval.
This study investigates the effects of hardening and physical factors on Al 2024 Alloy's hardnes... more This study investigates the effects of hardening and physical factors on Al 2024 Alloy's hardness by the application of Rockwell hardness test. Its main goal is understanding the concept of hardness and examining different properties affecting hardness. Precipitation hardening was performed to enhance the materials properties and static hardness tests were utilized to evaluate the hardness values in Rockwell B scale in various stages and locations of the material. Results show that hardness is dependent on the precipitation hardening time. Hardness is closely related to the material's physical conditions such as its age or surface quality. Furthermore, the repetitive usage of the material decreases the accuracy of the measurements. The expected results were also added and a curve was created to reveal the behaviour of Al 2024 Alloy throughout the precipitation hardening time.
Metallography is one of the strongest tools to observe the microstructure of a material. This stu... more Metallography is one of the strongest tools to observe the microstructure of a material. This study has two main goals. First goal is to observe the microstructure and to determine the mean grain size of Mg AZ31 alloy examining it under light microscopy and investigate the relationship between microstructure and physical properties of a material. Second is to learn specimen preparatory techniques for metallographic microscopy. The results which are obtained for the mean grain size and the yield stress are in the expected interval. This experiment proves that there is a strong relation between physical properties and the microstructure.
The application of tensile load in increments until the failure of the material was the main pu... more The application of tensile load in increments until the failure of the material was the main purpose of this test. Change in the material's length was recorded after every increment. The data until the failure was recorded and used to find the material's yielding strength, ductility, tensile strength, toughness, true tensile strength, fracture strength, true fracture strength, modulus of elasticity and estimate its toughness. Then, an engineering stress-strain graph was plotted. Finally the conversion formulas were used to come up with the true stress-strain curve. The material's mechanic features were also compared with the theoretical results. The physical properties were in the expected interval.
This study investigates the effects of hardening and physical factors on Al 2024 Alloy's hardnes... more This study investigates the effects of hardening and physical factors on Al 2024 Alloy's hardness by the application of Rockwell hardness test. Its main goal is understanding the concept of hardness and examining different properties affecting hardness. Precipitation hardening was performed to enhance the materials properties and static hardness tests were utilized to evaluate the hardness values in Rockwell B scale in various stages and locations of the material. Results show that hardness is dependent on the precipitation hardening time. Hardness is closely related to the material's physical conditions such as its age or surface quality. Furthermore, the repetitive usage of the material decreases the accuracy of the measurements. The expected results were also added and a curve was created to reveal the behaviour of Al 2024 Alloy throughout the precipitation hardening time.
Metallography is one of the strongest tools to observe the microstructure of a material. This stu... more Metallography is one of the strongest tools to observe the microstructure of a material. This study has two main goals. First goal is to observe the microstructure and to determine the mean grain size of Mg AZ31 alloy examining it under light microscopy and investigate the relationship between microstructure and physical properties of a material. Second is to learn specimen preparatory techniques for metallographic microscopy. The results which are obtained for the mean grain size and the yield stress are in the expected interval. This experiment proves that there is a strong relation between physical properties and the microstructure.
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