The influence of AlSi10Mg recycled powder on corrosion-resistance behaviour of additively manufactured components: mechanical aspects and acoustic emission investigation

• Autorzy: Barile Claudia , Casavola Caterina , Kannan Vimalathithan Paramsamy , Renna Gilda

Identyfikatory

DOI

10.1007/s43452-022-00375-y

• Języki publikacji: EN

Abstrakty

EN

The effects of using recycled AlSi10Mg aluminium alloy powders on the mechanical properties and the corrosion-resistance behaviour of the components manufactured via selective laser melting (SLM) were analysed. The microstructural results show that the utilisation of recycled powder causes coarsening of interdendritic Si-network, especially along the melt pool boundaries of the SLM specimens. The corrosion resistance of the samples was evaluated by means of neutral salt spray (NSS) tests for 1000 h and mass loss measurements. The corrosion behaviour, in terms of surface roughness, density and porosity, however, remains almost the same between the samples produced by virgin and recycled powder. In addition to this, a passive NDE tool has been used to investigate and study the impact of powders on the corrosion performance of the alloy: Acoustic Emission (AE) technique. SEM observations allowed to highlight the morphological differences in the surface of the test specimens induced by the exposure condition. Thus, it was possible to correlate the AE results to corrosion mechanisms activated on the surfaces of the test specimen. A good correlation between the corrosion-resistance behaviour and the AE test results were obtained. Finally, the mechanical properties before and at the end of the accelerated corrosion were evaluated according to the yield strength, tensile strength, and elongation at breakage. The results showed comparable mechanical properties for the samples produced using both virgin and recycled powders. Besides, no notable influence of the exposure to corrosive environment on the mechanical performance was observed.

Słowa kluczowe

EN

AlSi10Mg alloy; additive manufacturing (AM); selective laser melting (SLM); aluminium corrosion-resistance behaviour; acoustic emission (AE)

PL

emisja akustyczna; korozja aluminium; topienie laserowe

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2022
• Tom: Vol. 22, no. 1
• Strony: art. no. e52, 2022
• Opis fizyczny: Bibliogr. 34 poz., rys., wykr.

Twórcy

autor

Barile Claudia

• Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70126 Bari, Italy

autor

Casavola Caterina

• Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70126 Bari, Italy

autor

Kannan Vimalathithan Paramsamy

• Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70126 Bari, Italy

autor

Renna Gilda

• Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70126 Bari, Italy

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)