Corrosion behaviour of biomedical Ti under simulated inflammation: Exploring the relevance of grain refinement and crystallographic texture

This study provides an insight into the separate and combined effects of nanostructure and crystallographic texture on time-dependent Ti corrosion resistance under simulated inflammatory conditions. In order to achieve this objective, the following Ti products were fabricated by differential large plastic deformation methods: (i) nano Ti materials with virtually the same grain size but distinct crystallographic textures, and (ii) Ti materials with different microstructures but similar crystallographic textures. Overall, electrochemical and XPS studies revealed that the development of a basal texture component provides the most advantageous corrosion properties in terms of prolonged immersion in a simulated inflammatory environment. •Corrosion behavior of plastically-deformed Ti was studied in PBS+H2O2.•Microstructure characteristics do not influence initial corrosion response.•Long-term corrosion resistance is governed by split-basal texture.•Texture has stronger impact on long-term corrosion resistance than grain size.