Corrosion of titanium: Part 1: aggressive environments and main forms of degradation.

摘要: Titanium has outstanding corrosion resistance due to the external natural oxide protective layer formed when it is exposed an aerated environment. Despite this, titanium may suffer different forms of in severe environments: uniform corrosion, pitting and crevice hydrogen embrittlement, stress-corrosion cracking, fretting erosion. In this first review, affecting are analyzed based on a wide literature review. For each form mechanism most environment reported according current understanding.In second part, review will address possible surface treatments that can increase commercially pure titanium: Electrochemical anodizing, thermal oxidation, chemical oxidation bulk such as alloying be considered, highlighting advantages technique.