Microstructural characterization and mechanical behaviour of laser powder Bed Fusion stainless steel 316L
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00583696" target="_blank" >RIV/68081723:_____/24:00583696 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0167844224000922?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167844224000922?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tafmec.2024.104343" target="_blank" >10.1016/j.tafmec.2024.104343</a>
Alternative languages
Result language
angličtina
Original language name
Microstructural characterization and mechanical behaviour of laser powder Bed Fusion stainless steel 316L
Original language description
Laser Powder Bed Fusion (L-PBF) is a highly precise and customizable additive manufacturing (AM) technique nthat uses a high-energy laser to selectively melt and fuse powdered material into a three-dimensional object. nHowever, depending on the process parameters, the final components may have potential flaws that can affect ntheir quality and mechanical properties, due to porosity, melting and incomplete fusion of powder particles and nbecause the process involves local heating and sometimes uneven heat transfer, the processed components may nwarp or crack due to residual stresses or thermal gradients. The manufacturing process itself reflects in the final ncomponent structure having a detrimental effect on the strength, durability, fatigue resistance, and corrosion. nIn this work, static tensile and fatigue tests were performed on traditional and L-PBF manufactured AISI 316L nstainless steel specimens. The energetic release has been evaluated with an infrared camera during the static and nfatigue tests aiming to identify material thermal response to the loading and to predict the failure in rapid way nadopting Thermographic Methods. Differences were observed comparing the fatigue data of the L-PBF processed nspecimens with the traditional material. However, analysis of internal structure, porosity, and surface characteristics of the AM material in combination with fractographic analysis helped to explain the differences in the fatigue life. The observed energy release, different for both material types, was discussed based on the structural characteristics. The results show that the crack originates from a defect on the surface or just below the surface, with a transgranular propagation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Theoretical and Applied Fracture Mechanics
ISSN
0167-8442
e-ISSN
1872-7638
Volume of the periodical
131
Issue of the periodical within the volume
Jun
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
104343
UT code for WoS article
001221917800001
EID of the result in the Scopus database
2-s2.0-85186632614