Hot Corrosion Behaviour of Detonation Gun Sprayed Al₂O₃-40TiO₂ Coating on Nickel Based Superalloys at 900°C

Table 1

Chemical compositions of Superni 718 and AE 435 superalloys Midhani grade chemical composition (wt.%).

Materials	C	Mn	Si	S	P	Cu	Cr	Fe	Ti	Al	Ni
Superni 718	0.0047	0.01	0.02	0.002	—	0.010	17.78	19.56	—	—	Bal
AE 435	0.08	0.03	0.03	>0.005	>0.005	>0.01	20.19	0.10	0.30	0.12	Bal