Corrosion behaviors of additive manufactured titanium alloys
Additive Manufacturing of Emerging Materials
School of Engineering
Owing to the layer-wise characteristic of additive manufacturing (AM) technologies, the microstructure of AM-produced titanium alloys inevitably differs from the alloys produced by conventional methods. Such a resultant microstructure would affect their mechanical properties and corrosion resistance. Selective laser melting (SLM) and electron beam melting (EBM) are the two main forces in the manufacture of the titanium alloys. However, most of the researches on AM-produced titanium alloys have only focused on the mechanical properties of the AM-produced titanium alloys, and just an insufficient part of them are used for the research of corrosion properties. This chapter reviews the very recent progress of the corrosion behavior of SLM- and EBM-produced Ti-6Al-4V alloys, SLM-produced CP-Ti and Ti-TiB composites in different testing solutions as well as various manufacturing planes. The work sheds light the corrosion resistance properties and its mechanisms for AM-produced titanium alloys.