... with a modification of the polishing direction after each paper change and final polishing step along longitudinal direction. The EAC susceptibility in each condition was determined using SSRT with a constant extension rate of 10^-6 s^-1 (in/in/s) leading to a strain rate after the yield point...

... of Mo and Cr on pitting resistance. SSC SSRT RSRT H₂S Cyclic polarization corrosion martensitic stainless steel INTRODUCTION Ripple and slow strain rate test Continuous high demand for energy resources in recent years has led to a proliferation of oil and gas production wells around...

... conducted by some sponsors, a Slow Strain Rate Tensile (SSRT) based test method was successfully used on UNS 07718 alloys, allowing the discrimination of acceptable and unacceptable microstructures ⁹ . This methodology was therefore implemented in this study. The major objectives of this project...

... to Hydrogen Induced Stress Cracking (HISC) resistance was studied using the Slow Strain Rate Tensile (SSRT) test method under hydrogen charging conditions. The experimental conditions included a 0.5M sulfuric acid solution at 5 mA/cm² and at 40°C at a strain rate of 10^-6 sec^-1...

... of the weld joint regions. It was observed that the loss of ductility and the iron sulphide film morphology, and the promoted barrier effect against hydrogen, are dependent on the weld joint area considered. weld joint hydrogen embrittlement sour corrosion SSRT iron sulphide surface analysis Besides...

... cracking of various Nickel based alloys has recently been reported by others and is a subject of increasing interest. This paper describes results for different test methods, including Slow Strain Rate Testing (SSRT), Incremental Step Loading (ISL), and Constant Load Verification (CLV). A new Ni-Cr-Mo-Fe...

... a higher susceptibility to HISC. UNS S32750 SSRT σ phase hydrogen induced stress cracking INTRODUCTION Superduplex UNS S32750 is one of the most corrosion resistant grades within the duplex family, making it a competitive alternative material to such nickel-based alloys as 825. Thanks to their high...

... (4.5 – 6.0). The maximum of cracking susceptibility seems to correlate with selective corrosion of ferrite coupled with transgranular cracks of the austenite. UNS S32205 SSRT stress corrosion cracking pitting H₂S temperature pH INTRODUCTION With their high mechanical properties...

.... Sour corrosion iron sulphide scale hydrogen embrittlement SSRT electrochemistry INTRODUCTION Corrosion is one of the biggest and most costly problems in the oil industry, which has synergism with geothermal fluid used for energy production. One fifth of the worldwide steel production is destined...

...-pressure/high-temperature (HP/HT) developments. Initial slow strain rate testing (SSRT) of a two-step heat treatment in a sour environment containing 28 bar H₂S and 25% NaCl at 150°C revealed improvement in critical SSRT ratios (ε_p and RoA) over that achievable with the API heat...

... and storage tanks has been reported. This phenomenon can be assessed, for example, by slow strain rate testing (SSRT) and fracture mechanics tests, in which the specimens are well defined by international standards. This study aims to evaluate the susceptibility of the steel API 5L X70 to SCC in different...

... results on steels and corrosion resistant alloys (CRA) are presented in this paper, and discussed with reference to conventional low pressure/low pH tests. H₂S corrosion ultra high pressure testing SSRT INTRODUCTION Two test laboratory devices, able to perform tests at ultra high pressure...

...Alloy 600 weld metal stress corrosion cracking primary water SCC PWSCC titanium niobium SSRT activation energy constant-load test INTRODUCTION It is widely known that mill-annealed, nickel-base Alloy 600 is susceptible to stress corrosion cracking in primary cooling water of pressurized...

...SSRT supermartensitic stainless steel formation water galvanostatic testing Time-Strain-Fracture (TSF)-diagrams INTRODUCTION Hydrogen assisted stress cracking represents an inherent risk for the application of supermartensitic stainless steels in such environments of oil-and gas production...

... the slow strain rate tensile technique (SSRT). It was revealed that the PWSCC fracture mode of these materials changes with strain rate and the crack growth rate has a maximum. The total brittle fracture decreases with increasing strain rate; however, the fraction of transgranular(TG) mode in the brittle...

...TEST RESULTS Accelerated SSRT test TABLE 1 CHEMICAL COMPOSITION, MECHANICAL PROPERTIES, NUMBER OF WELD PASS AND HEAT INPUT OF TEST MATERIALS (wt%) Material C Si Mn P S Ni Cr Fe Cu Nb Alloy 82 0.017 0.26 2.54 0.006 0.001 72.9 17.95 3.72 0.01 1.93...

... strain rate tensile technique (SSRT). In this study, it was revealed that the PWSCC fracture mode of nickel alloy is mainly intergranular, whereas the one for the austenitic stainless steel is transgranular. The total brittle fracture decreases with increasing strain rate; however, the fraction...

...Abstract The susceptibility of alloy 600 to intergranular stress corrosion cracking (IGSCC) has been tested in pressurized water reactor (PWR) simulated primary water chemistry at 340° C by slow strain rate testing (SSRT). The electrochemical noise (EN) in current and potential was monitored...

... lesser threshold strength level. The reason of SCC formation was attributed to the mixed grain structure and grain boundary film cementite. The SSCC resistance was superior when the acicular ferrite structure was formed. HSLA steel Line pipe steel Hot strips H₂S gas HIC SSCC CLT SSRT...

... was fully ductile (Fig. (a)). TGSCCs were observed mainly in heat A with 0.1 ppm DO. EXPERIMENTAL RESULTS AND DISCUSSION SSRT system used in this study had two autoclaves in series with three tensile mechanisms in each driven by electric motors. Nominal flow rate of the loop water was 1 x 10^-3...