Article (Scientific journals)
Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
KEDZIORA, Slawomir; DECKER, Thierry; MUSEYIBOV, Elvin et al.
2022In Materials, 15 (18), p. 6278
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Keywords :
additive manufacturing; Charpy impact energy; fatigue properties; tensile strength; BASF; Ultrafuse; Markforged
Abstract :
[en] The number of additive manufacturing methods and materials is growing rapidly, leaving gaps in the knowledge of specific material properties. A relatively recent addition is the metal-filled filament to be printed similarly to the fused filament fabrication (FFF) technology used for plastic materials, but with additional debinding and sintering steps. While tensile, bending, and shear properties of metals manufactured this way have been studied thoroughly, their fatigue properties remain unexplored. Thus, the paper aims to determine the tensile, fatigue, and impact strengths of Markforged 17-4 PH and BASF Ultrafuse 316L stainless steel to answer whether the metal FFF can be used for structural parts safely with the current state of technology. They are compared to two 316L variants manufactured via selective laser melting (SLM) and literature results. For extrusion-based additive manufacturing methods, a significant decrease in tensile and fatigue strength is observed compared to specimens manufactured via SLM. Defects created during the extrusion and by the pathing scheme, causing a rough surface and internal voids to act as local stress risers, handle the strength decrease. The findings cast doubt on whether the metal FFF technique can be safely used for structural components; therefore, further developments are needed to reduce internal material defects.
Disciplines :
Mechanical engineering
Author, co-author :
KEDZIORA, Slawomir  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
DECKER, Thierry  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
MUSEYIBOV, Elvin ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Morbach, Julian
Hohmann, Steven
Huwer, Adrian
Wahl, Michael
External co-authors :
yes
Language :
English
Title :
Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
Publication date :
2022
Journal title :
Materials
eISSN :
1996-1944
Publisher :
MDPI AG, Basel, Switzerland
Volume :
15
Issue :
18
Pages :
6278
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
Funders :
(Interreg V A Greater Region Program), German Ministry of Economic Affairs, Transport, Agriculture and Viniculture Rhineland-Palatinate.
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since 26 January 2023

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