Correlation between pre- and post-treatments of additively manufactured 316L parts and the resulting low cycle fatigue behavior
K.-U. Garthe, K.-P. Hoyer, L. Hagen, W. Tillmann, M. Schaper, Rapid Prototyping Journal (2021).
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Journal Article
| Published
| English
Author
Garthe, Kai-UweLibreCat 
;
Hoyer, Kay-PeterLibreCat;
Hagen, Leif;
Tillmann, Wolfgang;
Schaper, MirkoLibreCat
;
Hoyer, Kay-PeterLibreCat;
Hagen, Leif;
Tillmann, Wolfgang;
Schaper, MirkoLibreCatDepartment
Abstract
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<jats:title content-type="abstract-subheading">Purpose</jats:title>
<jats:p>The currently existing restrictions regarding the deployment of additively manufactured components because of poor surface roughness, porosity and residual stresses as well as their influence on the low-cycle fatigue (LCF) strength are addressed in this paper.</jats:p>
</jats:sec>
<jats:sec>
<jats:title content-type="abstract-subheading">Design/methodology/approach</jats:title>
<jats:p>This study aims to evaluating the effect of different pre- and post-treatments on the LCF strength of additively manufactured 316L parts. Therefore, 316L specimens manufactured by laser powder bed fusion were examined in their as-built state as well as after grinding, or coating with regard to the surface roughness, residual stresses and LCF strength. To differentiate between topographical effects and residual stress-related phenomena, stress-relieved 316L specimens served as a reference throughout the investigations. To enable an alumina coating of the 316L components, atmospheric plasma spraying was used, and the near-surface residual stresses and the surface roughness are measured and investigated.</jats:p>
</jats:sec>
<jats:sec>
<jats:title content-type="abstract-subheading">Findings</jats:title>
<jats:p>The results have shown that the applied pre- and post-treatments such as stress-relief heat treatment, grinding and alumina coating have each led to an increase in LCF strength of the 316L specimens. In contrast, the non-heat-treated specimens predominantly exhibited coating delamination.</jats:p>
</jats:sec>
<jats:sec>
<jats:title content-type="abstract-subheading">Originality/value</jats:title>
<jats:p>To the best of the authors’ knowledge, this is the first study of the correlation between the LCF behavior of additively manufactured uncoated 316L specimens in comparison with additively manufactured 316L specimens with an alumina coating.</jats:p>
</jats:sec>
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Rapid Prototyping Journal
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Cite this
Garthe K-U, Hoyer K-P, Hagen L, Tillmann W, Schaper M. Correlation between pre- and post-treatments of additively manufactured 316L parts and the resulting low cycle fatigue behavior. Rapid Prototyping Journal. Published online 2021. doi:10.1108/rpj-01-2021-0017
Garthe, K.-U., Hoyer, K.-P., Hagen, L., Tillmann, W., & Schaper, M. (2021). Correlation between pre- and post-treatments of additively manufactured 316L parts and the resulting low cycle fatigue behavior. Rapid Prototyping Journal. https://doi.org/10.1108/rpj-01-2021-0017
@article{Garthe_Hoyer_Hagen_Tillmann_Schaper_2021, title={Correlation between pre- and post-treatments of additively manufactured 316L parts and the resulting low cycle fatigue behavior}, DOI={10.1108/rpj-01-2021-0017}, journal={Rapid Prototyping Journal}, author={Garthe, Kai-Uwe and Hoyer, Kay-Peter and Hagen, Leif and Tillmann, Wolfgang and Schaper, Mirko}, year={2021} }
Garthe, Kai-Uwe, Kay-Peter Hoyer, Leif Hagen, Wolfgang Tillmann, and Mirko Schaper. “Correlation between Pre- and Post-Treatments of Additively Manufactured 316L Parts and the Resulting Low Cycle Fatigue Behavior.” Rapid Prototyping Journal, 2021. https://doi.org/10.1108/rpj-01-2021-0017.
K.-U. Garthe, K.-P. Hoyer, L. Hagen, W. Tillmann, and M. Schaper, “Correlation between pre- and post-treatments of additively manufactured 316L parts and the resulting low cycle fatigue behavior,” Rapid Prototyping Journal, 2021, doi: 10.1108/rpj-01-2021-0017.
Garthe, Kai-Uwe, et al. “Correlation between Pre- and Post-Treatments of Additively Manufactured 316L Parts and the Resulting Low Cycle Fatigue Behavior.” Rapid Prototyping Journal, 2021, doi:10.1108/rpj-01-2021-0017.
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