Biological Behaviour and Enhanced Anticorrosive Performance of the Nitrided Superelastic Ti-23Nb-0.7Ta-2Zr-0.5N Alloy

Table 1

Atom relative concentrations (atom %) of the initial films existing on the bare and nitrided Ti-23Nb-0.7Ta-2Zr-0.5N alloy surface.

Alloy	Element relative concentrations (at.%)
	Ti 2p	Nb	Ta 4f	Zr 3d	O 1s	N 1s
Bare	42.1	26.0	0.8	1.4	21.2	0.5
Nitrided	37.8	16.8	0.5	2.0	3.0	39.9