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Abstract
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Porosity as an inevitable parameter in the parts produced by the additive manufacturing process have significant effects on mechanical properties. In this research, by using Ti6Al4V parts produced by additive manufacturing process in horizontal (X) and vertical (Z) orientations, the effect of porosity characteristics (content, morphology and distribution) on mechanical properties has been investigated using tensile and fatigue tests.
Interestingly, the results indicated dissimilar behavior of porosity in different loadings as well as different orientations. Despite the dissimilar porosity characteristics in the specimens oriented in different X and Z directions, the tensile properties of both directions showed similar behaviours. However, in the case of fatigue tests, completely different results were observed which is expressed in more details in the manuscript. These findings can be taken into consideration in the computational and experimental design and optimization of additive manufacturing parts from Ti6Al4V alloy.
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