Abstract
Within the scope of this investigation, the quasi in-situ analysis of the fracture path of a FeCo alloy is performed. In the additively manufactured FeCo alloy sample, two U shaped notches are machined, and the sample is subjected to a fatigue test. EBSD maps are acquired near the U notch region before and after the fatigue test. Thus, crack propagation micro-mechanisms are evaluated by quasi in-situ experiments. The fracture path is approximately parallel to the {100} plane trace and is diverted by high plastic constraint factor grains. A high concentration of geometrically necessary dislocations is detected near the boundary of the crack.
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