Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/14234
Title: Fatigue Response of As-Built DMLS Maraging Steel and Effects of Machining, Heat and Surface Treatments
Authors: Croccolo, Dario
de Agostinis, Massimiliano
Fini, Stefano
Olmi, Giorgio
Robusto, Francesco
Ćirić Kostić, Snežana
Vranić, Aleksandar
Muharemović, Nusret
Bogojevic, Nebojsa
Issue Date: Jul-2018
Abstract: The main motivations for this study arise from the need for an assessment of the fatigue performance of DMLS produced Maraging Steel MS1, when it is used in the “as fabricated” state. The literature indicates a lack of knowledge from this point of view, moreover the great potentials of the additive process may be more and more incremented, if an easier and cheaper procedure could be used after the building stage. The topic has been tackled experimentally, investigating the impact of heat treatment, machining and micro-shot-peening on the fatigue strength with respect to the “as built state”. The results indicate that heat treatment significantly enhances the fatigue response, probably due to the relaxation of the post-process tensile residual stresses. Machining can also be effective, but it must be followed (not preceded) by micro-shotpeening, to benefit from the compressive residual stress state generated by the latter.
URI: https://scidar.kg.ac.rs/handle/123456789/14234
Type: conferenceObject
Appears in Collections:Faculty of Mechanical and Civil Engineering, Kraljevo

Page views(s)

46

Downloads(s)

7

Files in This Item:
File Description SizeFormat 
10_2018_IRF_971_Olmi.pdf1.09 MBAdobe PDFThumbnail
View/Open


Items in SCIDAR are protected by copyright, with all rights reserved, unless otherwise indicated.