This issue from the topic series “Corrosion” contains articles published by Trans Tech Publications in 2017 - 2020. The volume covers many aspects of the corrosive behaviour of metallic biomaterials - from corrosion resistance studies to biocompatible coatings. We hope this collection will be useful and interesting to a broad audience of researchers and engineers from the area of development and research properties of metallic biomaterials and practitioners who utilize implantable and non-implantable devices.