Comparative study of reference and additively manufactured 316L stainless steeleffect of conventional and severe shot peening treatments on microstructure and mechanical features
- P. Ebrahimzadeh 1
- L.B. Peral 12
- A. Díaz 2
- J.M. Alegre 2
- I.I. Cuesta 2
- I. Fernández-Pariente 1
- 1 SIMUMECAMAT Research Group. Universidad de Oviedo
- 2 Structural Integrity Research Group (GIE). Universidad de Burgos
ISSN: 2792-4246
Year of publication: 2023
Issue: 5
Pages: 269-274
Type: Article
More publications in: Revista española de mecánica de la fractura
Abstract
Austenitic stainless steel components, manufactured by Selective Laser Melting (SLM) technique, are commonly characterized by the presence of tensile residual stresses and rougher surface which can play a detrimental role on the mechanical and corrosion performance. Therefore, it is important to apply post-processing treatments such as heat treatments and shot peening treatments to improve mechanical and corrosion performance. In the present work, additively manufactured 316L specimens were subjected to different shot peening (SP) treatments: conventional (CSP) and severe (SSP). Identical shot peening methodology was also applied to reference samples in order to assess the comparable response. After applying the mentioned SP treatments, microstructural analysis were carried out in the reference and additively manufactured specimens. To complete the analysis, surface topography, residual stresses and microhardness profiles were also studied.
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