...-SSR Technology Abstract The ripple-slow strain rate (R-SSR) technique is an alternative screening test to the conventional-SSR (C-SSR) method. Both methods assess susceptibility to environmentally assisted cracking (EAC) of corrosion resistant alloys (CRAs) and involve loading a NACE TM0198...

... in caustic simulants at temperatures below 75°C. Slow strain rate (SSR) tests and fast and slow scan anodic polarization scans were used to evaluate the susceptibility of the carbon steel to SCC in various 10 M sodium hydroxide caustic environments. Stress corrosion cracking caustic cracking carbon steel...

.... An extensive amount of time and effort has been spent investigating the chemistry limits of the waste necessary to prevent SCC of the carbon steel tanks. Historically, the slow strain rate (SSR) test technique has been the main method used to evaluate the susceptibility of the carbon steel liner(s) to SCC...

... utilized slow strain rate (SSR) tensile testing to aggressively identify any SCC behavior as a function of increasing methanol vapor content; whereas Phase 2 focused on fracture toughness testing with slow-strain rate rising K loading to determine the effect of methanol vapor on component fracture...

... steel welded joint in a 3.5 wt.% NaCl solution at 180 °C was investigated using slow strain rate tensile (SSRT) tests at different strain rates. The result revealed a significant reduction of ductility with slower strain rates, but little effect of strain rate on tensile strength was observed...

... on the slow strain rate technique with a modified evaluation procedure from that given in NACE TM0198. Packer fluid tests involved three primary fluid types: 16 ppg CaCl₂/CaBr₂/ZnBr₂, 13.6 ppg CaCl₂/CaBr₂, and 14.2 ppg CaBr₂. Acidizing tests...

..., through standardization activities of NACE, a standard test method was developed for use in evaluation of Ethanol SCC in carbon steels. It was largely based on the experience and procedures developed in the aforementioned research activities. It utilizes a slow strain rate procedure similar to that first...

.... Biologically obtained butanol has been proposed as an alternative to ethanol. This study compares the two for their potential to induce environmental cracking. The tests results include both fracture mechanics and slow strain rate tests for the determination of crack growth rates, threshold stress intensity...

...In these studies, the predominant test method utilized for laboratory evaluation has been the slow strain rate (SSR) technique. Initially, a conventional smooth tension specimen was used for testing at an extension rate of 1 x 10^-6 inch/sec (2.5 x 10-⁵mm/sec). While...

... strain rate would limit the extent of passivation and promote crack growth. Hence, the observed effect that a higher strain rate results in a faster crack growth rate. EXPERIMENTAL Three different sets of experiments were performed: (i) scratching electrode experiments, (ii) slow strain rate (SSR) tests...

... and predicting the mechanical behavior of higher strength corrosion resistant super-austenitic alloy 27-7MO (UNS S31277). Standard slow strain rate and U-bend tests will be used to explore environments where alloy UNS S31277 offers the most economic solution for sand control products. 27-7MO UNS S31277...

... the limits now established for S31603 in ISO 15156/NACE MR0175. The primary method used for this corrosion testing program was the slow strain rate test (SSRT) technique, NACE TM0198-98. The gauge dimensions of the specimens were 3.8 mm diameter and 25.4 mm length. The strain rate used in these tests was 4.0...

... strain rate (SSR) tests conducted in the oil patch environments. However, the materials having grain boundaries fully covered with second phase particles had inferior properties in SSR testing. UNS N07718 UNS N07725 UNS N09925 slow strain rate oil patch microstructure time-temperature...

...Mechanical Test Techniques Slow Strain Rate Test Technique Prior to the discovery of external SCC on underground pipelines, several potent cracking environments for SCC of low strength steels had been identified. These included caustic, nitrates, and phosphates. These species were not detected...

...slow strain rate C-ring pitting testing evaluation UNS N08825 UNS N08028 corrosion resistant alloy nickel stress corrosion cracking oil patch application sour service INTRODUCTION CRA’s have historically been screened in the selection of OCTG applications by a required minimum PREN...

.... Among the primary Corrosion Resistant Alloys (CRA’s) currently used in the cold worked condition for OCTG in sour gas wells is alloy G-3 (UNS N06985). Slow strain rate (SSR) tests conducted in a severe sour brine environment representative of Mobile Bay type conditions showed that the grain size...

... C (400 F) due to the transitions from passive to active behavior or from varying passive states (i.e. oxide to sulfide). martensitic precipitation hardened duplex stress corrosion cracking sulfide stress cracking slow strain rate localized corrosion INTRODUCTION With the increased use...

...) Acoustic emission monitoring of standard TM0177, Method A tests, (2) Slow strain rate testing at various extension rates, and (3) Re-analysis of API C-90 round robin SSC test results to define an alternative threshold stress criterion for a reduced testing period. Results of the program indicated...

...Abstract Stress corrosion cracking (SCC) and hydrogen embrittlement (HE) susceptibility of three different steels were determined using the methodology of the slow strain rate (SSR) testing as currently discussed within ASTM G129 and more specifically in the proposed NACE T-1F-9e test method...

...SSR tests were conducted in accordance with the latest draft of the NACE International Technical Activities Committee T-1F-9 standard on "Slow Strain Rate Test Method for Screening Corrosion Resistant Alloys (CRA's) for Stress Corrosion Cracking in Sour Oil Field Service". Because the material...