Abstract:
Metallic biomedical implants such as titanium-based alloys are very useful for
orthopaedic applications due to their excellent properties which responds to changes in
temperature and other conditions. However, biological toxicity due to alloying elements and
relatively high Young’s modulus or mechanical incompatibilities of previously used Ti alloys
have necessitated the development of biocompatible alloys with compatible mechanical
properties such as beta-titanium alloys. This study aims at production of beta-titanium alloy with
enhanced properties by varying milling speeds. Ti and Nb powders were mechanically alloyed
using the high energy ball-mill Zoz-Simoloyer® to produce Ti-7Nb alloys by varying the milling
speed. The milling process produced irregular shaped powders with increasing particles sizes as
the milling speed increased due to fragmentation and cold welding during agglomeration. The
mechanical alloying process had good yield. The predominant phases of the inhomogeneously
milled alloy were alpha and beta phases.
