Abstract
Additively manufactured metals have their specifics which influence their performance. Based on fractography, these specifics are depicted in this paper on the example of titanium alloy Ti6Al4V manufactured by selective laser melting (SLM). While very fine microstructure contributes to high strength during static loading, dynamic loading is impaired by rough as-built surface and internal defects. With post-processing treatment, these undesirable features can be removed or significantly reduced. To densify the material, hot isostatic pressing (HIP) closing internal voids is commonly used. Rough surface can be removed by machining or other operations, including chemical treatment. The influence of HIP and machining on fatigue failure are in the focus of this paper.
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