Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
The effects of SLM process parameters on the relative density and hardness of austenitic stainless steel 316L
Download
1-s2.0-S2238785424002370-main.pdf
Date
2024-03-01
Author
Bakhtiarian, Mohammadamin
Omidvar, Hamid
Mashhuriazar, Amirhossein
Sajuri, Zainuddin
Gür, Cemil Hakan
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
104
views
24
downloads
Cite This
Selective Laser Melting (SLM) process parameters significantly influence the microstructure and mechanical properties of the final product. Using the Taguchi optimization method, this investigation refined 316L austenitic stainless steel SLM process parameters. Process factors included laser power, scanning speed, and layer thickness, while performance criteria included relative density and hardness. A laser power of 180 W, a scanning speed of 1200 mm/s, and a layer thickness of 0.03 mm produced optimal results, resulting in 125 J/mm3 energy density and a hardness of 220 HV. ANOVA analysis also showed that power influenced density by 27.49 %, scanning speed by 45.51 %, and layer thickness by 23.60 %. A parameter combination led to materials with impressive tensile strengths (649 ± 4 MPa), yield strengths (409 ± 3 MPa), and elongation (42 ± 1 %) for increasing scanning speed and lowering energy density, resulting in a decrease in ultimate strength. A SEM analysis of fracture characteristics was also conducted. As a result of a cellular microstructure, ductile dimple sizes were limited to the nanoscale, and crack propagation was impeded through a pinning effect, thus increasing defect tolerance in the SLM SS316L. According to the findings, internal defects play a significant role in crack propagation and subsequent reduction of mechanical properties.
Subject Keywords
Additive manufacturing
,
AISI 316L
,
Density
,
Mechanical properties
,
SLM
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85184021180&origin=inward
https://hdl.handle.net/11511/108694
Journal
Journal of Materials Research and Technology
DOI
https://doi.org/10.1016/j.jmrt.2024.01.237
Collections
Department of Metallurgical and Materials Engineering, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Bakhtiarian, H. Omidvar, A. Mashhuriazar, Z. Sajuri, and C. H. Gür, “The effects of SLM process parameters on the relative density and hardness of austenitic stainless steel 316L,”
Journal of Materials Research and Technology
, vol. 29, pp. 1616–1629, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85184021180&origin=inward.