Corrosion behaviour of austenitic and duplex stainless steels in an industrial strongly acidic solution

2015 ◽  
Vol 67 (8) ◽  
pp. 831-838 ◽  
Author(s):  
T. Bellezze ◽  
G. Giuliani ◽  
G. Roventi ◽  
R. Fratesi ◽  
F. Andreatta ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Acidic Solution ◽  
Corrosion Behaviour ◽  
Duplex Stainless Steels

Influence of nickel additions on the corrosion behaviour of low nitrogen 22% Cr series duplex stainless steels

2008 ◽  
Vol 50 (9) ◽  
pp. 2572-2579 ◽  
Author(s):  
J.H. Potgieter ◽  
P.A. Olubambi ◽  
L. Cornish ◽  
C.N. Machio ◽  
El-Sayed M. Sherif
Keyword(s):  
Stainless Steels ◽  
Corrosion Behaviour ◽  
Duplex Stainless Steels ◽  
Low Nitrogen

Influence of cold and hot rolling on the corrosion behaviour of duplex stainless steels in mine water environment

2020 ◽  
Vol 28 ◽  
pp. 912-915
Author(s):  
M.H.E. Seshweni ◽  
A. Moloto ◽  
S. Aribo ◽  
S.R. Oke ◽  
O.O. Ige ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Hot Rolling ◽  
Mine Water ◽  
Corrosion Behaviour ◽  
Water Environment ◽  
Duplex Stainless Steels

New Lean Duplex Stainless Steels for Structural Applications

2008 ◽  
Vol 604-605 ◽  
pp. 419-426 ◽  
Author(s):  
Irene Calliari ◽  
Manuele Dabalà ◽  
Emilio Ramous ◽  
Giovanni Straffelini
Keyword(s):  
Stainless Steels ◽  
Corrosion Behaviour ◽  
Duplex Stainless Steels ◽  
Structural Components ◽  
Aisi 304 ◽  
Heat Treated ◽  
Structural Applications ◽  
The Common ◽  
The Impact ◽  
Nitrogen Additions

The continuous improvement of the applications of duplex stainless steels (DSS) is justified mainly by their excellent corrosion resistance in very aggressive environments and by their mechanical strength, often twice than that of conventional austenitic grades. Therefore more extensive applications have been suggested, like constructions, structural components, automotive applications, etc. However for such not advanced but quantitatively important applications the base cost of the alloy is one of the more constraining features. A way to obtain leaner alloys is to reduce the Ni content and to compensate with manganese and nitrogen additions. In the present paper the structural and mechanical properties of two low Ni duplex grades are analyzed in order to investigate the structural stability of the austenite against its possible transformation to martensite and the secondary phase’s precipitation. The detailed characterization has been performed with SEM-EDS on as received and heat treated (600-850 °C) alloys. A limited precipitation of chromium carbides and nitrides at the grain boundaries has been detected in both grades. The martensite formation has been revealed only in the 2101 grade. With regard to the impact toughness the behaviour of 2101 grade is quite similar to that of the common DSS, while in the 2304 the drastic drop of toughness is avoided. The corrosion behaviour of both grades in aggressive chloride environments is quite similar to that of austenitic AISI 304 grade.

Erosion–corrosion behaviour of lean duplex stainless steels in 3.5% NaCl solution

Wear ◽  
2013 ◽  
Vol 302 (1-2) ◽  
pp. 1602-1608 ◽  
Author(s):  
Sunday Aribo ◽  
Richard Barker ◽  
Xinming Hu ◽  
Anne Neville
Keyword(s):  
Stainless Steels ◽  
Corrosion Behaviour ◽  
Duplex Stainless Steels ◽  
Nacl Solution ◽  
Erosion Corrosion

Corrosion behaviour of duplex stainless steels containing minor ruthenium additions in reducing acid media

1996 ◽  
Vol 26 (11) ◽  
Author(s):  
J.H. Potgieter ◽  
W.O. Barnard ◽  
G. Myburg ◽  
K. Varga ◽  
P. Baradlai ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Corrosion Behaviour ◽  
Duplex Stainless Steels ◽  
Acid Media
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