Corrosion Behaviour of Ti-6Al-4V Alloy with Nitride Coatings in Simulated Body Fluids at 𝟑𝟔^∘C and 𝟒𝟎^∘C

Table 2

Energy dispersive X-ray analysis from surface of Ti-6Al-4V alloy with nitride coating II after polarization in Tyrode's solution.

Element	Areas of energy dispersive X-ray analysis (see Figure 6)
	No. 1	No. 2	No. 3	No. 4	No. 5
C K	—	40.77/69.59	10.59/26.89	—	23.04/48.47
N K	13.93/35.49	—	—	9.16/25.54	—
O K	—	5.06/6.48	11.83/22.56	—	9.88/15.61
Al K	0.30/0.40	0.13/0.10	0.30/0.34	0.34/0.49	0.26/0.24
Cl K	0.72/0.72	4.65/2.69	4.44/3.82	0.61/0.68	2.43/1.73
P K	0.05/0.06	—	—	—	—
Ca K	0.03/0.03	—	—	—	—
Ti K	84.98/63.31	49.40/21.14	72.84/46.39	89.89/73.9	64.38/33.95

*Numerator: wt%; denominator: at%.