Corrosion behavior of selective laser melted AlSi10Mg alloy in NaCl solution and its dependence on heat treatment

Document Type

Journal Article

Publication Title

Acta Metallurgica Sinica (English Letters)

Publisher

Springer

School

School of Engineering

RAS ID

30907

Funders

Science and Technology Commission of Shanghai Municipality, STCSM

Comments

Gu, X. H., Zhang, J. X., Fan, X. L., & Zhang, L. C. (2020). Corrosion Behavior of Selective Laser Melted AlSi10Mg Alloy in NaCl Solution and Its Dependence on Heat Treatment. Acta Metallurgica Sinica (English Letters), 33(3), 327-337. https://doi.org/10.1007/s40195-019-00903-5

Abstract

This work investigates the corrosion behavior of AlSi10Mg alloy produced by selective laser melting (SLM) and the counterparts heat-treated at 450–550 °C in 3.5 wt% NaCl solution. Electrochemical measurements and weight loss tests together with microstructural characterizations were conducted. The SLM-produced alloy displays a microstructure with a continuous network of Si particles, exhibiting superior corrosion behavior. After heat treatment, the Si particles are coarsened and isolated and Al matrix dissolves into their surrounding area, thereby degrading the corrosion resistance properties. Therefore, the corrosion resistance of AlSi10Mg alloy degrades with increasing the heat treatment temperature. © 2019, The Chinese Society for Metals (CSM) and Springer-Verlag GmbH Germany, part of Springer Nature.

DOI

10.1007/s40195-019-00903-5

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