The work studies the corrosion behavior of two aluminum alloys with different silicon content, AlSi7Mg and AlSi10Mg, produced by an additive manufacturing process based on Direct Metal Laser Sintering. The effect of subsequent thermal treatments at temperatures in the range 200 to 400 °C is considered. The resistance to selective attack was determined by immersion tests according to ISO 11846 on specimens obtained along two different orientations with respect to the main building direction. The results show the variations of the silicon particle morphology induced by heat treatments, affecting the alloy susceptibility to selective corrosion. The effect of silicon precipitates on alloy corrosion resistance and hardness is discussed.

(2017). Corrosion behavior of aluminum-silicon alloys obtained by Direct Metal Laser Sintering . Retrieved from http://hdl.handle.net/10446/116567

Corrosion behavior of aluminum-silicon alloys obtained by Direct Metal Laser Sintering

Cabrini, M.;Lorenzi, S.;Pastore, T.;
2017-01-01

Abstract

The work studies the corrosion behavior of two aluminum alloys with different silicon content, AlSi7Mg and AlSi10Mg, produced by an additive manufacturing process based on Direct Metal Laser Sintering. The effect of subsequent thermal treatments at temperatures in the range 200 to 400 °C is considered. The resistance to selective attack was determined by immersion tests according to ISO 11846 on specimens obtained along two different orientations with respect to the main building direction. The results show the variations of the silicon particle morphology induced by heat treatments, affecting the alloy susceptibility to selective corrosion. The effect of silicon precipitates on alloy corrosion resistance and hardness is discussed.
2-s2.0-85052318199
2017
Inglese
EUROCORR 2017. The Annual Congress of the European Federation of Corrosion, 20th International Corrosion Congress and Process Safety Congress
1
10
file su supporto
Czech Republic
Prague
Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers
EUROCORR 2017 - The Annual Congress of the European Federation of Corrosion, 20th International Corrosion Congress and Process Safety Congress, Prague, Czech Republic, 3-7 September 2017
Prague (Czech Republic)
3-7 September 2017
internazionale
contributo
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
additive manufacturing; laser powders bed fusion; aluminum alloy; heat treatment; selective corrosion.
info:eu-repo/semantics/conferenceObject
8
Cabrini, Marina; Lorenzi, Sergio; Pastore, Tommaso; Testa, C.; Manfredi, D.; Calignano, F.; Lorusso, M.; Fino, P.
1.4 Contributi in atti di convegno - Contributions in conference proceedings::1.4.01 Contributi in atti di convegno - Conference presentations
reserved
Non definito
273
(2017). Corrosion behavior of aluminum-silicon alloys obtained by Direct Metal Laser Sintering . Retrieved from http://hdl.handle.net/10446/116567
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