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Effect of laser shock peening parameters on residual stresses and corrosion fatigue of AA5083
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SYSNO ASEP 0554586 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of laser shock peening parameters on residual stresses and corrosion fatigue of AA5083 Author(s) Kaufman, Jan (FZU-D) ORCID
Špirit, Z. (CZ)
Vasudevan, V.K. (US)
Steiner, M.A. (US)
Mannava, S.R. (US)
Brajer, Jan (FZU-D) ORCID
Pína, L. (CZ)
Mocek, Tomáš (FZU-D) RID, ORCID, SAINumber of authors 8 Article number 1635 Source Title Metals. - : MDPI
Roč. 11, č. 10 (2021)Number of pages 10 s. Language eng - English Country CH - Switzerland Keywords LSP ; LPwC ; residual stress ; corrosion fatigue ; aluminium alloy ; sensitization ; intergranular corrosion Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000714005200001 EID SCOPUS 85116989949 DOI 10.3390/met11101635 Annotation Aluminium alloy 5083 was subjected to Laser Shock Peening both with (LSP) and without protective coating (LPwC) at multiple pulse densities. A second LPwC treatment was conducted fully submersed under water, in addition to the standard laminar water flow condition. The results show that compressive residual stresses were generated in all cases, although their character varied depending on the peening strategy and method of confinement. In all cases, higher pulse density lead to an increase in compressive stresses with a saturation point of −325 MPa at 1089 p/cm2 for the LPwC treatments. Corrosion fatigue testing of sensitized samples then showed 59% and 69% improvement in fatigue strength after the LSP and LPwC treatments, respectively. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0329286
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