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Journal of Nanomaterials
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Journal of Nanomaterials
/
2013
/
Article
/
Tab 4
/
Research Article
The Effect of Nitrogen Ion Implantation on the Surface Properties of Ti6Al4V Alloy Coated by a Carbon Nanolayer
Table 4
Maximum indentation hardness values of the modified samples and the reference sample.
Sample
REF
(unmodified)
A
(C 20 nm/
cm
−2
)
B
(C 40 nm/
cm
−2
)
C
(C 20 nm/
cm
−2
)
D
(C 40 nm/
cm
−2
)
Maximum indentation hardness (GPa)
5.3
13
12.4
11.2
11.5
Indentation depth (nm)
14
15
15
14.6
19.6