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51313-02384-Effect of Cathodic Polarization Potential on Hydrogen Induced Stress Cracking of Duplex SS

Picture for Effect of Cathodic Polarization Potential on Hydrogen Induced Stress Cracking of Duplex SS
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Product Number: 51313-02384-SG
ISBN: 02384 2013 CP
Author: Lei Zhang
Publication Date: 2013
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$20.00
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Hydrogen induced stress cracking (HISC) has always been experienced when duplex stainless steels are applied as subsea facilities under cathodic protection (CP). The effects of cathodic potential on HISC of duplex stainless steel were studied by electrochemical methods slow strain rate tensile test?SSRT?and four-point bending test. At the constant potential with the hydrogen evaluation reaction proceeding OH- on the surface of metals increases and the calcium and magnesium deposition layer can decrease the current to a static value. The SSRT results show that the fracture mode change from ductile to brittle when the duplex stainless steel was polarized to -1.07V vs. SSC or more negative potential. The four-point bending test results show the relationship between potential and the sensitivity of HISC in artificial seawater when the specimens loaded up to 98%?0.2. The hydrogen concentration of the specimens was also measured and the occurrence of HISC needs a certain hydrogen concentration.

Hydrogen induced stress cracking (HISC) has always been experienced when duplex stainless steels are applied as subsea facilities under cathodic protection (CP). The effects of cathodic potential on HISC of duplex stainless steel were studied by electrochemical methods slow strain rate tensile test?SSRT?and four-point bending test. At the constant potential with the hydrogen evaluation reaction proceeding OH- on the surface of metals increases and the calcium and magnesium deposition layer can decrease the current to a static value. The SSRT results show that the fracture mode change from ductile to brittle when the duplex stainless steel was polarized to -1.07V vs. SSC or more negative potential. The four-point bending test results show the relationship between potential and the sensitivity of HISC in artificial seawater when the specimens loaded up to 98%?0.2. The hydrogen concentration of the specimens was also measured and the occurrence of HISC needs a certain hydrogen concentration.

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11294 Susceptibility of Hydrogen Induced Stress Cracking of Duplex Stainless Steel at Elevated Temperature

Product Number: 51300-11294-SG
ISBN: 2011 11294 CP
Author: Roy Johnson, Bard Nyhus, and Ole Edvard Kongstein
Publication Date: 2011
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Experience has shown that stainless steels can suffer from Hydrogen Induced Stress Cracking (HISC) under cathodic protection in seawater.  This paper presents results from a test program examining the HISC susceptibility of 25% Cr super duplex stainless steel (UNS S32750) at temperatures up to 1500C.
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07494 Effect of Plastic Deformation on Hydrogen Induced Cracking (HISC) in Duplex Stainless Steel

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51314-3919-Hydrogen Induced Stress Corrosion of Duplex Stainless Steel Under Cathodic Protection in Artificial Seawater of Different Hydrostatic Pressure

Product Number: 51314-3919-SG
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