Print Email Facebook Twitter Mechanical properties of 3D printed CMT-WAAM 316 LSi stainless steel walls Title Mechanical properties of 3D printed CMT-WAAM 316 LSi stainless steel walls Author Andrade, D. G. (Universidade de Coimbra) Tankova, T. (TU Delft Steel & Composite Structures; Universidade de Coimbra) Zhu, C. (Universidade de Coimbra) Branco, R. (Universidade de Coimbra) da Silva, L. Simões (Universidade de Coimbra) Rodrigues, D. M. (Universidade de Coimbra) Date 2024 Abstract The use of 3D printed stainless steel requires a deep knowledge of its mechanical properties. This paper presents material characterisation of 316LSi austenitic stainless-steel coupons manufactured by CMT-WAAM, considering different deposition directions. The specimens were tested according to ISO 6892-1, the fractures surfaces were examined by SEM for machined and as-built conditions. The material was subject to hardness test and deep microstructural analyses, to assess the anisotropy in material properties at the micro and macro scales, respectively. A thermal analysis performed by infrared thermography of the material deposition in CMT-WAAM was also performed to establish the influence of the temperature evolution (versus time and position) on the microstructural and mechanical properties of the deposited walls. Finally, a statistical assessment was carried out, including results available in the literature and a material model available in the literature was adjusted to the test results, enabling to conclude that it is possible of accurately reproducing the uniaxial stress-strain behaviour, therefore providing a necessary input for the design of steel structures with 3D printed stainless steel. Subject Directed energy depositionMechanical propertiesStainless steelThermal analysisWire arc additive manufacturing To reference this document use: http://resolver.tudelft.nl/uuid:04060e07-4148-49e2-999d-d18c3e9610fa DOI https://doi.org/10.1016/j.jcsr.2024.108527 ISSN 0143-974X Source Journal of Constructional Steel Research, 215 Part of collection Institutional Repository Document type journal article Rights © 2024 D. G. Andrade, T. Tankova, C. Zhu, R. Branco, L. Simões da Silva, D. M. Rodrigues Files PDF 1-s2.0-S0143974X24000774-main.pdf 14.16 MB Close viewer /islandora/object/uuid:04060e07-4148-49e2-999d-d18c3e9610fa/datastream/OBJ/view