Estudio de la variación de la microestructura y su correlación con los valores de microdureza en uniones soldadas de acero SAE 8620
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The following document presents the results of a comparative, statistical and analytical study between the variation of the microstructure and the values of microhardness tests of welded joints worked in SAE 8620 steel. Due to the use of an optical microscope, an electron microscope Sweep and durometers, a synthesis of all the experimental procedure carried out to prepare the samples is shown. A correlation is executed, having as variables the grain size and the volumetric fraction of phase for five samples. In short, the statistical correlation implemented with the established variables allows a very close coincidence of data with a low percentage of error between the microhardness and the microstructure for all the unions. As previously stated, there are high indices in most Las Correlations, ranging from 71% to 99%, thus creating a linear behavior in which the experimental data are related to the real values of microhardness and microstructure.