TY  - JOUR
T1  - Special Properties for Resistance to Corrosion of Biomedical Alloy Ti-Al-Mo-Zr
Used in Surgical Operations
AU - Salman Al-Murshdy, Jassim Mohammed 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 22
SP  - 9540
EP  - 9547
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.9540.9547
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.9540.9547
KW  - Biomedical alloys
KW  -corrosion resistance
KW  -Ti-alloys
KW  -powder metallurgy
KW  -hardness
KW  -microcopy
AB  - Ti-1.25% Al-0.75% Mo-1% Zr base alloy was prepared with a lower weight percentage then the
standard alloy. The other 3 alloys were worked after adding the Chromium (Cr) and Nickel (Ni) elements
separately and collecting them together to the base alloy using powder metallurgy technique. The corrosion
tests of the alloys were carried out with Saliva and Hanks solutions, also, the hardness tests, X-ray,
microstructure through using Scaning Electron Microscopy (SEM) Light Optical Microscopy (LOM) and
Atomic Force Microscopy (AFM). The outcomes was showed that the addition of the chromium element
improved resistance to corrosion for both solutions by 28% Saliva and 40% Hanks for base alloy. Also, the
combination of the 2 elements gives higher improvement corrosion resistance via., compared with the base alloy
and addition nickel alone. Moreover, the results of microstructure was indicated that the increased of β phase
of Ti-1.25% Al-0.75% Mo-1% Zr-0.5% Cr alloys while the hardness results were showed increasing with
addition elements, X-ray indicated that new phases. As well the nature of corroded surfaces had a little different
from the uncorroded during the tests of the atomic force microscopy for most used alloys studied.
ER  -