Fundamentals and advances in magnesium alloy corrosion

By M. Esmaily, J. Svensson, S. Fajardo, Nick Birbilis, Gerald S. Frankel, S. Virtanen, R. Arrabal, Sebastian Thomas, L. Johansson. 2017

1,786 citations recorded by the source corpus.

There remains growing interest in magnesium (Mg) and its alloys, as they are the lightest structural metallic materials. Mg alloys have the potential to enable design of lighter engineered systems, including positive implications for reduced energy consumption. Furthermore, Mg alloys are also emerging as viable biodegradable materials and battery electrodes. In spite of the greatest historical Mg usage at present, the wider use of Mg alloys remains restricted by a number of inherent limitations, including vulnerability to corrosion, poor formability and low creep resistance. This review covers recent research that has led to advances in Mg-alloy corrosion; including the application of contemporary methods for understanding Mg corrosion, the establishment of an electrochemical framework for Mg corrosion, illumination of alloying effects, and attempts at corrosion resistant Mg alloys. A discussion drawing from many sources provides an unbiased focus on new achievements, as well as some contentious issues in the field. The electrochemistry of Mg is reviewed in detail, including so-called anodic hydrogen evolution and cathodic activation. This review also covers atmospheric corrosion, and biodegradable Mg alloys. Finally, past and present trends in the field of Mg corrosion are reviewed, identifying knowledge gaps, whilst attempting to also identify future developments and directions.

Subfields: Biomaterials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/1dfc5eb656f307c550ef09806513cea048f62db7

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Citations in the corpus

Magnesium extrusion alloys: a review of developments and prospects (2019, background): “dictated by the specific elements with which Mg is alloyed [12].”
Recent Development in Friction Stir Processing as a Solid-State Grain Refinement Technique: Microstructural Evolution and Property Enhancement (2019, background): “However, application of magnesium alloys is restricted due to its poor corrosion resistance and formability.(234) Hence, corrosion resistance has been investigated for FSPed magnesium alloys, as given in Table 5.”
Clarifying the decisive factors for utilization efficiency of Mg anodes for primary aqueous batteries (2019, methodology): “No doubt that the hydrogen evolution rate of all the Mg anodes increases with increasing discharge current densities, which is a typical manifestation of the negative difference effect (NDE) of Mg in the unbuffered pH neutral NaCl solution.”
Electrochemical Impedance Spectroscopy for the Measurement of the Corrosion Rate of Magnesium Alloys: Brief Review and Challenges (2020, methodology): “In this method, the corrosion layers formed on the surfaces of the specimens after the immersion test are dissolved with an aqueous solution of chromic acid, and the weight loss is calculated from the difference in weight of the specimen before and after removal of the corrosion products [1,21] (Fig”