... 16447 A Comparative Study Of DLEPR Techniques For Cast Austenitic Stainless Steel Erin Connelly D.W. Clark Taunton, MA 02780 USA Alan Druschitz Virginia Tech Blacksburg, VA 24060 USA ABSTRACT Double-Loop Electrochemical Potentiodynamic Reactivation (DLEPR) is a useful technique to measure...

... ABSTRACT Several warm-worked Cr-Mn-N austenitic stainless steels with 110 to 135ksi (758-931 MPa) yield strength and a wide range of Cr, Mn, and N were evaluated for pitting and crevice corrosion in both as-received condition and in a post-polymer thermal cure condition aimed to assess...

... ABSTRACT Martensitic stainless steel (UNS S41000), austenitic stainless steel (UNS S31000), and nickel-based alloy (UNS N06625) specimens were exposed at 450°C and 7.6 MPa in pure supercritical CO 2 (sCO 2 ) for two months. The exposure was performed in order to assess the effect of various...

... ABSTRACT UNS S31600 austenitic stainless steels have been routinely used to handle dry hydrogen chloride gases in petrochemical processes due to low corrosion rate. However, the presence of moisture increases the corrosion behavior by the formation of liquid hydrochloric acid. When UNS S31600...

... ABSTRACT Many unexpected cracks occur in aging 18 years old austenitic stainless steel on cryogenic pipeline application. Operations need to be stopped for treatment and repair which results in delay transmission against customer. Systemic root cause analysis reveals that random cracks...

... austenitic stainless steels in strain-hardened condition own a beneficial combination of high strength, high ductility and high toughness, by keeping their own non-magnetic character and . Therefore, CrMn-stainless steels have been extensively used in drilling equipment. Once in contact with high chloride...

... ABSTRACT The corrosion behavior of austenitic stainless steels (UNS S30400/S30403, S30800) with machined, electropolished, or temper filmed surfaces was tested in deaerated, pH adjusted water at 500 °F (260 °C), 550 °F (288 °C) and 620 °F (327 °C) for up to 10,000 hours. Test specimens were...

... Subsurface Corrosion simulated recovery boiler salt Pipeline Corrosion well integrity steam environment texas 77084 superheater tube materials and corrosion Upstream Oil & Gas austenitic stainless steel oxidation testing manuscript permission superheater tube candidate Houston...

... ABSTRACT In this study, several austenitic stainless steels (UNS S30400, S30300, S30900, S31600, S31000 and N08330) were aluminized by halide activated pack cementation (HAPC) at 850°C for process times of 4, 9, 16 and 25 hours. Coating development and morphology dependence on austenite...

... by heating and rapid cooling.1,3 One solution to overcome the aforementioned drawbacks from the DMLS process is the selection of materials with excellent corrosion resistance properties, such as austenitic stainless steels.1,6 Among the austenitic stainless steels, series 300 alloys with low carbon content...

... of some alloys. Carbides are known to be resistant to attack by molten fluorides and could potentially be used to form a diffusion barrier on alloy surfaces. Alloy S31603 and alumina forming austenitic stainless steel OC5 were pre-oxidized in air or steam atmosphere to form surface oxide film. Chromium...

... austenitic stainless steels as well as 17-4PH in the 110ksi-to- 130ksi yield strength range (34 – 35 HRC max). Complementarily, microstructure analyses and electrochemical tests, among other standard tests, were applied to all alloys for comparison purposes and were used to explain the sulfide stress...

... Atmospheric Stress Corrosion Crack Growth Rate Analyses of Austenitic Stainless Steel B.P. Somerday Southwest Research Institute® 6220 Culebra Rd. San Antonio, TX, 78238 USA E.N. Macha Southwest Research Institute® 6220 Culebra Rd. San Antonio, TX, 78238 USA J.H. Feiger Southwest Research...

...) against Polythionic acid stress corrosion cracking (PTASCC) during shut down (neutralization & nitrogen purging), however cracking occurred in the 321 (UNS S32100) type austenitic stainless steel (SS) weld-olet right after the start up. Materials selection of the low point drain, which used Alloy 825...

... and austenitic stainless steels in deaerated 10,000 ppm Cl - solution at ambient temperature. Results show that in general the resistance to localized corrosion correlates well with the value of the pitting resistance equivalent number (PRE), regardless of their crystalline microstructure (i.e. austenitic vs...

... ABSTRACT Conventional 18Cr-8Ni austenitic stainless steels with high molybdenum content such as UNS S31603 (316L) and UNS 31703 (317L) are effective for use in most naphthenic acid corrosion (NAC) environments. However, type 316L or 317L have the risk to polythionic acid stress corrosion...

... steels under tensile loads. Although LME of austenitic stainless steel is more likely when Zn is in its molten state, occurrences of Zn induced LME have been reported at temperatures below 400°C (752°F). Industry has adopted a number of practices to prevent LME of SS pressure-retaining equipment...

... the reduction of hydrogen ions in natural corrosion. The cracking of an austenitic stainless steel in chloride-containing environments belongs to the SCC of APC type [6]. The rupture of passive film caused by the dynamic plastic deformation at crack tip and the following repassivation play a dominative role...

.... To better understand these factors, static exposure tests of nickel-based alloys UNS N10003, UNS N10244, UNS N06230, and austenitic stainless steels UNS S31603, UNS S30403, UNS S34700, and UNS S32100 were conducted in the molten fluoride salt known as FLiNaK. Pure elements Ni, Mo, Fe, and Cr were also...

... austenitic stainless steel UNS S31254 in future deep geothermal wells corrosion testing was done in simulated geothermal environment at 180°C and 350°C with a pressure of 10 bar. The simulated environment was composed of steam with H 2 S, HCl and CO 2 gases, with a pH of 3 upon condensation. The testing...