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Author
Ayllón García, Miquel
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Abstract
Steel is one of the most widespread materials today. This element is present in large infrastructures, buildings, vehicles and a whole series of utensils and appliances that we use in our daily lives. This is due to its versatility and the large number of physical properties it possesses. This is why it is the subject of powerful research and development processes. These processes have also served to generate new alloys and variants of steel, which in turn multiply the number of final applications that can be given to this material.
One of the variants of steel is galvanized steel. This work has been carried out in order to compare the mechanical behaviour of two alloys, DD11 steel and DX51D+Z steel, a galvanized steel.
They will be subjected to the following heat treatments: annealing, quenching, normalizing and tempering. After these heat treatments, the steels will be subjected to tensile and hardness tests. Once these tests are completed, the results obtained will be analysed, observing if and how the main mechanical properties are affected: Young's modulus, yield stress, maximum load, breaking point, resilience modulus, toughness, ductility and hardness.
Once the analysis of the results is completed, it can be determined if galvanizing steel affects in any way the mechanical properties once it has been heat treated, and for which applications the galvanized steel could be useful.
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