Abstract
The present study investigates comparison between corrosion behavior of 2507 and 2205 DSS in artificial saliva for orthodontic wires. The heat treatment is necessary for 2507 and 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. The corrosion behavior of a 2507 and 2205 DSS in artificial saliva was studied by SEM, HV test and potentiodynamic measurements. The results indicate that the corrosion resistance mainly depends on presence of secondary phases (sigma phase) and ferrite /austenite ratio, it’s revealed that the corrosion resistance of 2507 DSS higher than 2205 DSS in artificial saliva at 37 °C.
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Acknowledgements
The authors would like to thank to assist in the practical part (SEM test) by Dr. Raid Abdul Abbas, Research Engineer- High Performance Stainless &Alloys- Avesta Research Center-Outokumpu Stainless AB, Avesta, Sweden.
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Hammood, A.S., Noor, A.F. & Alkhafagy, M.T. Evaluation of corrosion behavior in artificial saliva of 2507 and 2205 duplex stainless steel for orthodontic wires before and after heat treatment. J Mater Sci: Mater Med 28, 187 (2017). https://doi.org/10.1007/s10856-017-5997-1
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DOI: https://doi.org/10.1007/s10856-017-5997-1