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Назив: Effects of build orientation and thickness of allowance on the fatigue behaviour of 15–5 PH stainless steel manufactured by DMLS
Аутори: Croccolo, Dario
De Agostinis, Massimiliano
Fini, Stefano
Olmi, Giorgio
Bogojevic, Nebojsa
Ćirić Kostić, Snežana
Датум издавања: 2018
Сажетак: The present study is focused on the fatigue strength of 15–5 PH stainless steel, built by Direct Metal Laser Sintering. Six-specimen sets were manufactured, mechanically and thermally treated and tested under rotating bending fatigue. The study investigates the effects of the build orientation (parallel, perpendicular, or 45° inclined with respect to the vertical stacking direction) and of allowance for machining (1 mm or 3 mm at gage). The results, processed by an ANOVA methodology, indicate that allowance for machining has a beneficial effect on the fatigue response. Removing the surface irregularities, averagely leads to a 19% enhancement of the fatigue limit. The build orientation also becomes beneficial, when the slanted samples are included in the experiment. In this case, a fatigue strength increase up to 20% can be achieved. Further developments will include the investigation of the effects of heat and surface treatments, involving also further materials in the study.
URI: https://scidar.kg.ac.rs/handle/123456789/14220
Тип: article
DOI: 10.1111/ffe.12737
Налази се у колекцијама:Faculty of Mechanical and Civil Engineering, Kraljevo

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