Mechanical and microstructural characteristics of commercial purity titanium implants fabricated by electron-beam additive manufacturing

摘要

Electron-beam additive manufacturing (EBAM) is a layer-by-layer additive manufacturing technique. In this study, the mechanical and microstructural characteristics of commercial purity (CP) titanium implants with various porosities, fabricated by EBAM, were examined. The results show that the CP-titanium implants were composed of fine grains and Fe-Ti intermetallic compounds with a size of 40 nm. In addition, they exhibit high yield strength and a low elastic modulus that are comparable to those of human bone.