scholarly journals Effect of Aging Heat Treatment on Corrosion Behavior and Corrosion Kinetics of 17-4PH Stainless Steel in Artificial Saliva

2021 ◽  
Vol 50 (3) ◽  
pp. 849-858
Author(s):  
ONTHIDA KOSASANG ◽  
MANUTCHAYA WONGKAEWMOON ◽  
SOMWAN CHUMPHONGPHAN
Keyword(s):  
Heat Treatment ◽  
Weight Loss ◽  
Stainless Steel ◽  
Corrosion Behavior ◽  
Pitting Corrosion ◽  
Artificial Saliva ◽  
Function Form ◽  
Corrosion Kinetics ◽  
Power Law Function ◽  
Kinetics Of

The corrosion behavior of the sintered 17-4PH stainless steel samples aged at different conditions in artificial saliva was studied using the method of electrochemical and weight loss after exposure for various periods of time. The results showed that the samples aged at 480 °C for 1 h exhibited the highest corrosion resistance.The pitting corrosion was predominantly initiated from existing, isolated pores and further accelerated. The corrosion kinetics trend is found to be more consistent with a bimodal function form rather than the classical power-law function.

Effect of Heat Treatment on Corrosion Behavior of Duplex Stainless Steel 2507 in Artificial Saliva

2019 ◽  
Vol 61 (1-2) ◽  
pp. 48-56
Author(s):  
Ali Sabea Hammood ◽  
Ahmed Faraj Noor ◽  
Mohammed Talib Alkhafagy ◽  
Irene Calliari
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Corrosion Behavior ◽  
Artificial Saliva

scholarly journals Susceptibility to Stress Corrosion of Laser-Welded Composite Arch Wire in Acid Artificial Saliva

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Chao Zhang ◽  
Xinhua Sun
Keyword(s):  
Weight Loss ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Shape Memory Alloy ◽  
Artificial Saliva ◽  
Steel Wire ◽  
Niti Shape Memory Alloy ◽  
Solution Ph ◽  
Corrosion Behaviors ◽  
Cu Interlayer

The corrosion resistance of laser-welded composite arch wire (CoAW) with Cu interlayer between NiTi shape memory alloy and stainless steel wire in artificial saliva with different acidities and loads was studied. It was found that both the solution pH and the stress had a significant influence on the corrosion behaviors of the CoAW samples. Decreasing the solution pH or increasing the loading stress caused the increase of Cu release and weight loss. The corroded morphology formed on the surfaces of the CoAW was the consequence under the combined effect of corrosion and stress.

Corrosion Behavior of Duplex Stainless Steel in Industrial White Liquor

CORROSION ◽  
10.5006/2558 ◽  
2017 ◽  
Vol 74 (5) ◽  
pp. 543-550 ◽  
Author(s):  
Luiza Esteves ◽  
Mônica M.A.M. Schvartzman ◽  
Wagner Reis da Costa Campos ◽  
Vanessa F.C. Lins
Keyword(s):  
Weight Loss ◽  
Stainless Steel ◽  
Corrosion Rate ◽  
Duplex Stainless Steel ◽  
Corrosion Behavior ◽  
Extrapolation Method ◽  
White Liquor ◽  
Duplex Steel ◽  
Kraft Mill ◽  
Lower Corrosion Rate

Specimens of lean duplex and duplex stainless steel were exposed at 200°C in industrial white liquor from a Brazilian kraft mill using an autoclave to simulate the same conditions of digester processing. Tafel extrapolation method and weight loss were used to evaluate corrosion behavior of duplex steel in white liquor. The higher alloy steel, although presenting a lower corrosion rate than the lean duplex, presents a more severe selective attack on ferrite, at 200°C and 1.8 MPa, after Tafel extrapolation method in industrial white liquor.

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