Titanium Hydriding and Consolidation for Recycling of Titanium Tuning Chip

Abstract

Manufacturing technology of bulk titanium by milling and sintering was studied for recycling of pure titanium tuning chip. Ti chips were milled at RT under H2 pressure of 0.5MPa. All titanium chips were pulverized and hydrided within several minutes, which is very short time comparing to other thermal processes. The hydrided powders were hot pressed at 750°C. After hot pressing, bulk sample was identified to α-phase Ti by XRD measurement and measured density(4.509g/cm3) was very close to theoretical density(4.512g/cm3) of pure Ti. Consequently, it is carefully suggested that hydriding and sintering process is efficient and practicable solution for recycling of pure titanium tuning chip.