Review of corrosion and corrosion control of magnesium alloys and composites

In vitro degradation and cytotoxicity of Mg/Ca composites produced by powder metallurgy

“…The reactions proceed rapidly along the interface, swelling the composite and allowing the electrolyte to penetrate deeper [31]. Finally, the corrosion becomes catastrophic, and the Mg/Ca composite completely breaks down [31]. Therefore, the increasing amount of Ca particulates, resulting in an increased surface area ratio of anodic Ca particulate to Mg, is believed to be the reason for the increasing corrosion rate of the Mg/Ca composite in the present study.…”

“…When the solution reaches the Ca particulate-Mg matrix interface, it promotes the formation of corrosion products Ca(OH) 2 and CaCO 3 . The reactions proceed rapidly along the interface, swelling the composite and allowing the electrolyte to penetrate deeper [31]. Finally, the corrosion becomes catastrophic, and the Mg/Ca composite completely breaks down [31].…”

Effect of KOH Concentration on the Microstructure and Electrochemical Properties of MAO-Coated Mg Alloy AZ31B

“…In addition, in order to improve the quality of the resulting coatings, increase the electrical conductivity of base electrolyte, and contribute certain elements within the MAO coatings, various additives are added to the base electrolyte (Ref [48][49][50][51][52][53]. It is known that phosphate can produce a sustainable Mg 3 PO 4 ð Þ product to protect the Mg alloys (Ref [54][55][56]. Borate is another additive under investigation.…”

Structure, mechanical property and corrosion behaviors of (HA + β-TCP)/Mg–5Sn composite with interpenetrating networks

“…The ceramic/metal interface has the capability of forming a galvanic couple in the electrolyte and the electrically conducting scaffold becomes the noble member. The corrosion initiated along the interface allowing the electrolyte deep penetration [40,41]. As the corrosion proceeds, Mg-5Sn alloy matrix dissolves gradually with HA + β-TCP scaffold structure left, as shown in Fig.…”