Zbigniew Marciniak , Ricardo Branco , Wojciech Macek , Cândida Malça
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Fatigue behaviour of SLM maraging steel under variable-amplitude loading
One of the most challenging issues for additive manufactured materials is fatigue endurance. Engineering components often operate under complex, variable amplitude loadings, in which existing technological imperfections promote fatigue cracks growth and damage of elements eventually. In this study the effects of different variable-amplitude strain levels on fatigue life, 18Ni300 steel was tested. The work presents various behaviours of the material depending on the load level.
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