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Abstract

A method for producing a corrosion-inhibiting coating on an implant made of a biocorrodible magnesium alloy, the method comprising providing the implant; and treating the implant surface using an aqueous or alcoholic conversion solution containing one or more ions selected from the group consisting of K.sup.+, Na.sup.+, NH.sub.4.sup.+, Ca.sup.2+, Mg.sup.2+, Zn.sup.2+, Ti.sup.4+, Zr.sup.4+, Ce.sup.3+, Ce.sup.4+, PO.sub.4.sup.3-, HPO.sub.4.sup.2-, H.sub.2PO.sub.4.sup.-, OH.sup.-, B.sub.3.sup.3-, B.sub.4O.sub.7.sup.2-, SiO.sub.3.sup.2-, MnO.sub.4.sup.2-, MnO.sub.4.sup.-, VO.sub.3.sup.-, WO.sub.4.sup.2-, MoO.sub.4.sup.2-, TiO.sub.3.sup.2-, Se.sup.2-, ZrO.sub.3.sup.2-, and NbO.sub.4.sup.-, wherein the concentration of the ion or ions is in the range of from 0.01 mol/l to 2 mol/l. An implant produced by this method is also disclosed.

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