... Abstract This paper reports the applicability of 15% Cr-added (15-6-3-Cu-based; UNS No. S42625) and 17% Cr-added (17-4.5-3-Cu-W-based; UNS No. S42825) martensite-based stainless steel OCTG materials for seawater injection service. It is known that GRP (Glass-fiber Reinforced Plastic) lined...

... Abstract Electrochemical analyses were performed to investigate the effect of austenite volume ratio on corrosion-resistant properties in 15%Cr-added and 17%Cr-added martensite-based stainless Oil Country Tubular Goods (OCTG) materials. Austenite in modified-13%Cr (generic classification...

...): coarsegrained heat-affected zone (CGHAZ) and intercritically reheated coarse-grained heat-affected zone (IRCGHAZ). Moreover, the formation of the martensite-austenite (M-A) constituent in the welded HAZ is an important phenomenon that greatly decreases the toughness in this zone. Therefore, in order to improve...

... ABSTRACT: Stress corrosion cracking (SCC) susceptibility of a tempered martensite downhole tubular steel were evaluated in CO2 partial pressures from 500-3000 kPa and different strain rates from 5×10-7-2 ×10-6 S-1 at 175°C in carbonate-bicarbonate environments. Constant extension rate tests...

... ABSTRACT: The same coarse austenite (γ) grains as those before austenitizing emerge when a martensite and/or bainite steel with coarse grains is heated to an austenite region at a slow heating rate. This is called γ grain memory. In this study, ferrite (α) to γ reverse transformation behavior...

... ABSTRACT Martensite transformation of Supermartensitic steel during welding cycle was in-situ observed by using high temperature laser scanning confocal microscopy and X-ray diffraction by Synchrotron radiation. From the test results, X-ray diffraction integration strength of austenite...

... The effect of transformation-induced microscopic residual stress on fatigue crack propagation behaviour of ferrite-martensite lamellar steel was discussed. Fatigue tests of prestrained and non-prestrained specimens were performed. Inflections and branches at ferritemartensite boundaries were...

... ABSTRACT The relation between the fatigue crack propagation behavior and the microscopic characteristics (the morphology, distribution, hardness of the 2nd phase) of Ferrite / Martensite Dual Phase (FMDP) steel is investigated numerically using Crystalline-Elastic-Plastic F.E. (CPFE) analysis...

... ABSTRACT Stress corrosion crack growth studies have been performed in high temperature, ultra high purity water on unsensitized stainless steels and alloy 600 as a function of martensite, yield strength, corrosion potential, temperature, and hydrogen fugacity. Parallel experiments were...

... ABSTRACT This investigation examines the effects of strain-induced martensite on the corrosion resistance of a type 304L stainless steel. Based on electrochemical critical pitting temperature determinations, the presence of varied amounts of c~' martensite had no measurable effects...

... corrosion susceptibility of 13-Cr and super 13-Cr martensitic stainless steels in simulated production environments in equilibrium with up to 850 ppm H2S (g) and 1.7% CO2 (g) at elevated pressures. In contrast to similar experimental arrays, coupons remained at their free corrosion potential for most...

... alternative which produces less radioactive waste and does not have a reliance on the finite source of uranium fuel. Eurofer-97, a reduced activation ferritic-martensitic (RAFM) steel, will be used as a structural material for fusion reactors. The earliest literature reference to RAFM steels originated from...

... Abstract 13Cr-5Ni-2Mo type Super Martensitic stainless steels (SMSS-13Cr) are often chosen for the manufacture of downhole completion equipment within the oil and gas production environment. SMSS-13Cr is primarily used in CO2 rich production environments where carbon/low-alloy steels...

... Abstract 13Cr martensitic stainless steel is widely used in oil and gas industry. It is well known that addition of molybdenum (Mo) enhances the passivity of steel. However, the role of Mo in passive film has not been clarified completely. The aim of the present research was to reveal role...

... and stress corrosion cracking behavior of Super 13Cr martensitic stainless steel (S13Cr MSS) exposed to formation brine at 200°C with a 5.2 MPa CO 2 partial pressure through immersion tests and slow strain rate (SSR) tests. The corrosion products composed of amorphous Cr(OH) 3 and Cr 2 O 3 were identified...

... retrieval system test result martensite-based stainless steel specimen responsibility publication means scc stainless steel nacl solution rights fracture surface ssc permission modified-13cr-110 temperature region Abstract This paper mainly deals with the environmentally-assisted...

... for corrosion protection of martensitic stainless steels in geothermal environments. Al 2 O 3 sol-gel coatings were applied on UNS S42000, which is known to be susceptible to uniform and localized corrosion. The coated steel specimens were then tested in two types of artificial geothermal water, which simulate...