Mechanical testing of metals and polymers
A. Tensile testing and impact testing of polymers
Carry out a test evaluation, for UTS, % Elongation, 0.2% proof stress and Young’s modulus of elasticity, on the tensile test specimens supplied. For the impact testing, you will be measuring the energy absorbed in fracture and the notched impact strength. Discuss your results by relating mechanical properties to polymer structure.
B1. Tensile testing of ferrous and non-ferrous metals.
Carry out a test evaluation, for UTS, % Elongation, 0.2% proof stress and Young’s modulus of elasticity on the tensile test bars supplied. Discuss your results by relating mechanical properties to microstructure.
B2. Vickers hardness measurement of various engineering alloys
Carry out a series hardness tests on the material provided. Discuss the results in relating to the composition, microstructure and process.
B3. Microstructure observation of ferrous and non-ferrous metals.
Examine the microstructure of a series of metallographic specimens using optical microscopy. Discuss the results in relating to the morphology and process.

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