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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, SAINumber of authors 12 Source Title Journal of Materials Research and Technology-JMR&T. - : Elsevier - ISSN 2238-7854
Roč. 19, Aug (2022), s. 4787-4792Number 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