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The viability of modern engineering structures and materials depends on actively designing against fatigue, which accounts for the majority of mechanical failures. While additive manufacturing (AM) offers numerous advantages to conventional manufacturing techniques, the cyclic behavior of AM parts must be understood before they can be safely used in areas such as the aerospace and biomedical industries. In this research, the behavior of austenitic steel components produced via direct energy deposition (DED) wire and arc additive manufacturing (WAAM) under cyclic loading was investigated. Paris-Law fatigue crack growth parameters were determined from experimental testing in an effort to deduce location-dependent properties and to compare to published data for the conventional material. Statistical ANOVA analysis provided inconsequential evidence of the dependence of damage accumulation on …