Dissolution Mechanism of Duplex Stainless Steels in the Active-to-Passive Transition Range and the Role of Microstructure

CORROSION ◽  
1995 ◽  
Vol 51 (8) ◽  
pp. 571-580 ◽  
Author(s):  
E. Symniotis
Keyword(s):  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Dissolution Mechanism ◽  
Transition Range ◽  
Passive Transition

The Fatigue Properties of Duplex Stainless Steels: Role of Microstructure

2008 ◽  
Vol 378-379 ◽  
pp. 101-114 ◽  
Author(s):  
Jean Bernard Vogt
Keyword(s):  
Fatigue Resistance ◽  
Stainless Steels ◽  
Load Transfer ◽  
Volume Fraction ◽  
Low Cycle Fatigue ◽  
Fatigue Behaviour ◽  
Cyclic Softening ◽  
Duplex Stainless Steels ◽  
Fatigue Properties

The paper analyzes the role of microstructure on the low cycle fatigue behaviour of duplex stainless steels. The alloys are investigated in their as received condition and after ageing at 475°C. The fatigue resistance and the cyclic accommodation of these DSS are strongly controlled by the volume fraction of α and γ "phases which is related to the chemical composition in particular nitrogen. It is shown that DSS with a high fraction of austenite present a good combination of fatigue resistance and cyclic softening especially in the aged condition. The mutual interaction between ferrite and austenite referred to load transfer is beneficial for increasing the fatigue resistance. Alloying with nitrogen appears to be a promising way to master an optimised microstructure leading to high mechanical resistant DSS.

Lean duplex stainless steels – The role of molybdenum addition on pitting corrosion of concrete reinforcements

2011 ◽  
Vol 108 (4) ◽  
pp. 203-211 ◽  
Author(s):  
T. Mesquita ◽  
E. Chauveau ◽  
M. Mantel ◽  
N. Kinsman ◽  
R.P. Nogueira
Keyword(s):  
Pitting Corrosion ◽  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Molybdenum Addition
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