Effect of heat treatment on corrosion behavior of 2205 duplex stainless steel in orthodontic applications

الملخص EN

The heat treatment is necessary for 2205 duplex stainless steel to remove or dissolve intermetallic phases, removed segregation and to relieve any residual thermal stress in DSS which may be formed during production processes.

In the present study, the corrosion resistance of a 2205 DSS in artificial saliva was studied by SEM, XRD, HV test and potentiodynamic measurements.

The results indicated that the corrosion resistance mainly effected by ferrite /austenite ratio.

The best result was obtained with the treatment at 900°C for 2 min.

The austenite phase has corrosion resistance higher than ferrite.