scholarly journals Effect of ammonium bisulphite and chloride on the pitting and stress corrosion cracking resistance of super duplex stainless steel pipes under combined internal pressure and axial tension

2018 ◽  
Vol 70 (4) ◽  
pp. 661-675 ◽  
Author(s):  
Daley Lasebikan ◽  
Alfred Akisanya ◽  
Bill Deans
Keyword(s):  
Stainless Steel ◽  
Internal Pressure ◽  
Stress Corrosion ◽  
Duplex Stainless Steel ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Super Duplex Stainless Steel ◽  
Cracking Resistance ◽  
Steel Pipes ◽  
Axial Tension

Properties of Duplex Stainless Steel Surface Layers after Burnishing Process

2010 ◽  
Vol 165 ◽  
pp. 118-123
Author(s):  
Jerzy Łabanowski ◽  
A. Ossowska
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Stress Corrosion ◽  
Duplex Stainless Steel ◽  
Stress Corrosion Cracking ◽  
Cold Work ◽  
Corrosion Cracking ◽  
Surface Layers ◽  
Cracking Resistance ◽  
Test Technique

This paper investigates stress corrosion cracking resistance of cold worked layers of 25 Cr duplex stainless steel grade UR52N+. The surface layers were processed through burnishing treatment. The residual stresses at surface layers were determined using grazing angle incidence X-ray diffraction method (g-sin2 Ψ). Corrosion tests were performed with the use of Slow Strain Rate Test technique in boiling 35% MgCl2 solution. It has been demonstrated that burnishing treatment increases corrosion resistance of the steel. Stress corrosion cracking resistance depends on the magnitude of cold work at surface layers. High level of cold work diminishes corrosion resistance.

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