...Materials Three high strength steels with a specified minimum yield strength of 862 MPa (125 ksi) were used in the present study. The chemical compositions are shown in Table 1 as Base steel containing no Cr and Mo, 1% Cr steel, and 1% Mo steel. The steels were fabricated using a vacuum arc...

... was added and cathodic polarization started immediately. After 6 hours of charging, the straining started. Slow strain rate testing procedure flexible pipes tensile armor wires hydrogen embrittlement slow strain rate testing high strength steel INTRODUCTION Flexible pipes Flexible pipes have been...

... to testing to in situ charging during testing. We determined that in situ charging results in improved penetration of hydrogen into the test specimen compared to precharging, and thus provides a more accurate evaluation of the HE susceptibility of structural bolts. High Strength Steel Hydrogen Embrittlement...

... cracks to initiate but retard the crack propagation. SCC CP constant stress crack initiation crack propagation high strength steel INTRODUCTION With the rapidly increasing energy demand, the oil/gas production and pipeline activities can be found in remote regions such as the Arctic and sub-Arctic...

... ² which prevents hydrogen embrittlement of the plated high strength steel and is ready for the industrialization phase. During the development of the LHE-ZnNi plating process much work focussed on the question: where is the co-produced hydrogen going and how much? When measuring the amount...

... under cathodic corrosion protection. cathodic polarization cathodic protection alternating current hydrogen permeation promotor high strength steel sodium sulfate sodium hydroxide artificial soil solution cathodic iron dissolution INTRODUCTION When high-voltage lines are built parallel...

...The experimental approach consisted of in situ-hydrogen permeation measurements during the electrochemical plating of a 13 μm ZnNi coating on high strength steel membranes. EXPERIMENTAL Material hydrogen permeation ZnNi plating cadmium plating nickel plating zinc plating high strength steel...

... require application temperatures in excess of 230°C for single layer systems and 200°C for three layer systems. The introduction of high strength steels such as X80, X100 and X120 for use in pipeline construction has presented a challenge to the industry in terms of the availability of suitable coating...

... and hydrogen effect on mechanical properties were investigated. The testing was designed to simulate corrosion and hydrogen generation around the high strength steel (X100) under permafrost condition, with the comparison to the regular pipeline steel (X65 steel). Temperature is found to be an important...

... indicated that the tensile strength or hardness may be a better indicator of hydrogen embrittlement propensity than the yield strength. hydrogen embrittlement intergranular cracking martensitic stainless steel high strength steel hardness untempered martensite INTRODUCTION Two large forgings of 16Cr...

... sour gas OCTG casing high strength steel hydrogen embrittlement INTRODUCTION In the present study, SSC resistance of C125 grade is evaluated by some test methods in various sour environments. EXPERIMENTAL PROCEDURE Material C125 grade OCTG with chemical compositions shown in Table 1 were...

...Abstract Zn or Al-Zn-In sacrificial anodes are commonly used to protect submerged marine structures from general corrosion and galvanic corrosion. However, such electronegative alloys can also induce stress corrosion cracking or hydrogen embrittlement on high strength steels. Decreasing...

... stress cracking occurs, which is a proposed mechanism of cracking of casing in mud. High Strength Steel High Strength Casing Mud Hydrogen Embrittlement Environmental Cracking Sulfide Stress Cracking INTRODUCTION Environmental cracking of high strength OCTG exposed to drilling mud have been...

... different strategies. In particular, the incorporation of the anode into standard pile jacket repairs is cost effective. Power supplies for these systems have included AC-DC rectifiers and low voltage batteries. cathodic protection corrosion high strength steel hydrogen embrittlement steel-inconcrete...

... alloy corrosion and protection in a seawater environment, including mechanical behaviour. The test involved cracking of a CT specimen of a low alloyed high strength steel cathodically protected, and hydrogen permeation experiments. The experimental results show that the crack velocity clearly increases...

... stress condition for SSC will be investigated from the viewpoint of microscopic and macroscopic distributions of stress and strain in the specimens. sulfide stress cracking high strength steel hydrogen sulfide hydrogen embrittlement constant load constant strain fracture mechanics slow strain rate...