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Mechanical properties of small structures built by selective laser melting 316 L stainless steel – a phenomenological approach to improve component design

  • Experimental investigations are conducted to quantify the influence of specimen thickness and orientation on the mechanical properties of selective laser melted stainless steel 316 L. The results indicate that the mechanical strength and ductility increase with increasing specimen thickness until a saturation value is reached from a specimen thickness of about 2 mm. Specimen orientation dependency is pronounced for thin specimens (<1.5 mm), whereas only small deviations in strength are observed for thicker specimens with orientations of 30°, 45° and 90° to build direction. The mechanical properties of the specimen orientation of 0° to build direction shows great deviation to the other orientations and the smallest overall strength. A reliable design of selective laser melted components should account for specimen thickness and orientation, e. g. by a correction factor. Furthermore, it is recommended to avoid loads vertical (90°) and parallel (0°) to build direction to guarantee higher ductility and strength.

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Metadaten
Author:Lisa WiesentORCiD, Ulrich Schultheiß, Philipp Lulla, Aida NonnORCiDGND, Ulf Noster
URN:urn:nbn:de:bvb:898-opus4-14718
DOI:https://doi.org/10.1002/mawe.202000038
Parent Title (English):Materials Science & Engineering Technology
Parent Title (German):Materialwissenschaft und Werkstofftechnik
Title Additional (German):Mechanische Eigenschaften von kleinen Strukturen aus selektiv lasergeschmolzenem 316 L Edelstahl – ein phänomenologischer Ansatz zur Verbesserung des Bauteildesigns
Publisher:Wiley
Document Type:Article
Language:English
Year of first Publication:2020
Publishing Institution:Ostbayerische Technische Hochschule Regensburg
Release Date:2021/03/17
Volume:51
Issue:12
First Page:1615
Last Page:1629
Note:
Corresponding author: Lisa Wiesent
Institutes:Fakultät Maschinenbau
Technologie-Campus Neustadt an der Donau
Technologie-Campus Parsberg-Lupburg
Fakultät Maschinenbau / Computational Mechanics and Materials Lab (CMM)
Fakultät Maschinenbau / Labor Werkstoffrandschichtanalytik
Begutachtungsstatus:peer-reviewed
research focus:Produktion und Systeme
OpenAccess Publikationsweg:Hybrid Open Access - OA-Veröffentlichung in einer Subskriptionszeitschrift/-medium
Corresponding author der OTH Regensburg
Funding:DEAL Wiley
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International