Biomedical Engineering Reference
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(a)
500
μ
m
(b)
20
μ
m
Figure 9.29.
(a) Lower magnifi cation and (b) higher magnifi cation secondary SEM images
of TNZT + 2B wear tracks after friction studies using SS440 counterface balls. [Sonia Samuel
et al.
Wear Resistance of Laser Deposited Boride Reinforced Ti
-
Nb
-
Zr
-
Ta Alloy
Composites for
Orthopedic Implants
(to appear in Mater. Sci. Eng. C, 2007)]
surface morphology has undergone a plastic shear deformation mechanism
usually associated with less wear volume removal. This is evident by examining
some of the larger surface depressions with plastic fl ow process. These results
show that much lower friction coeffi cient and improved wear resistance can
be obtained by using a softer counterface material in case of TNZT + 2B as-
synthesized state, when compared to Ti-6Al-4V ELI alloys.
9.3.4.4 Summary of Ti-Nb-Zr-Ta + TiB Composites.
The summary of
Ti - Nb - Zr - Ta + TiB Composites is as follows:
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