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Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing

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 material...

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Autores principales: Kedziora, Slawomir, Decker, Thierry, Museyibov, Elvin, Morbach, Julian, Hohmann, Steven, Huwer, Adrian, Wahl, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9505810/
https://www.ncbi.nlm.nih.gov/pubmed/36143589
http://dx.doi.org/10.3390/ma15186278
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author Kedziora, Slawomir
Decker, Thierry
Museyibov, Elvin
Morbach, Julian
Hohmann, Steven
Huwer, Adrian
Wahl, Michael
author_facet Kedziora, Slawomir
Decker, Thierry
Museyibov, Elvin
Morbach, Julian
Hohmann, Steven
Huwer, Adrian
Wahl, Michael
author_sort Kedziora, Slawomir
collection PubMed
description 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.
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spelling pubmed-95058102022-09-24 Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing Kedziora, Slawomir Decker, Thierry Museyibov, Elvin Morbach, Julian Hohmann, Steven Huwer, Adrian Wahl, Michael Materials (Basel) Article 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. MDPI 2022-09-09 /pmc/articles/PMC9505810/ /pubmed/36143589 http://dx.doi.org/10.3390/ma15186278 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kedziora, Slawomir
Decker, Thierry
Museyibov, Elvin
Morbach, Julian
Hohmann, Steven
Huwer, Adrian
Wahl, Michael
Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title_full Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title_fullStr Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title_full_unstemmed Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title_short Strength Properties of 316L and 17-4 PH Stainless Steel Produced with Additive Manufacturing
title_sort strength properties of 316l and 17-4 ph stainless steel produced with additive manufacturing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9505810/
https://www.ncbi.nlm.nih.gov/pubmed/36143589
http://dx.doi.org/10.3390/ma15186278
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