Post-processing of selective laser melting manufactured SS-304L by laser shock peening

Pathak, Sunil; Zulic, Sanin; Kaufman, Jan; Kopeček, Jaromír; Stránský, Ondřej; Böhm, Marek; Brajer, Jan; Beránek, L.; Shukla, A.; Ackermann, M.; Véle, F.; Mocek, Tomáš

doi:https://dx.doi.org/10.1016/j.jmrt.2022.07.014

Number of the records: 1

Post-processing of selective laser melting manufactured SS-304L by laser shock peening

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SYSNO ASEP	0560496
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Post-processing of selective laser melting manufactured SS-304L by laser shock peening
Author(s)	Pathak, Sunil (FZU-D)_{ORCID, RID} Zulic, Sanin (FZU-D) Kaufman, Jan (FZU-D)_ORCID Kopeček, Jaromír (FZU-D)_{RID, ORCID} Stránský, Ondřej (FZU-D)_ORCID Böhm, Marek (FZU-D)_ORCID Brajer, Jan (FZU-D)_ORCID Beránek, L. (CZ) Shukla, A. (IN) Ackermann, M. (CZ) Véle, F. (CZ) Mocek, Tomáš (FZU-D)_{RID, ORCID, SAI}
Number of authors	12
Source Title	Journal of Materials Research and Technology-JMR&T. - : Elsevier - ISSN 2238-7854 Roč. 19, Aug (2022), s. 4787-4792
Number of pages	6 s.
Language	eng - English
Country	BR - Brazil
Keywords	additive manufacturing ; residual stresses ; laser shock peening ; microstructure
Subject RIV	BH - Optics, Masers, Lasers
OECD category	Optics (including laser optics and quantum optics)
R&D Projects	EF20_079/0017754 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000841970500004
EID SCOPUS	85142158342
DOI	10.1016/j.jmrt.2022.07.014
Annotation	This paper investigates the post-processing of additively manufactured stainless steel (SS) 304 L samples through laser shock peening (LSP). Four samples, differently processed, (i) as-built (AB), (ii) as-built + annealed, (iii) as-built + polished, and (iv) as-built + annealed + polished, were used to study the effect of LSP at pre-identified parameters to understand the mechanism and behavior of processing different conditions. In addition, compressive residual stresses and surface morphology were considered as a response to measure the effects of LSP on processed samples. The results have shown significant improvements in compressive residual stresses where the values have changed from initial tensile to compressive (−1170 MPa) and remain compressive up to the depth of 1 mm in most cases. The results of this research help better understand the LSP mechanism in the post-processing of AM Parts.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2023
Electronic address	https://hdl.handle.net/11104/0333633

Number of the records: 1