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Keywords: alloy
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Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16555
...16555 A New, Highly Stable Corrosion Resistant Alloy for Severe Oil & Gas and CPI Environments David S. Bergstrom, Nacéra Sabrina Meck, and John J. Dunn ATI Specialty Rolled Products Natrona Heights Operations 1300 Pacific Avenue Natrona Heights, PA, 15065 USA ABSTRACT ATI has developed ATI 642...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16594
... Abstract Operating temperatures above 700°C are desired to improve the efficiency of power generation systems such as microturbines. Therefore, the use of creep-resistant Ni-based or Fe-based alloys, which can form protective Cr 2 O 3 and Al 2 O 3 scales, is required. In this paper, Fe...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16665
... Sweden Sweden ABSTRACT The comparison of the pitting resistance of alloys with high corrosion resistance can be challenging, as CPT-values (critical pitting temperatures) are often above the boiling point of the test solutions. For high-nickel alloys, the use of potentiostatic electrochemical methods...
Proceedings Papers

Paper presented at the CORROSION 2021, April 19–30, 2021
Paper Number: NACE-2021-16314
... Abstract UNS N08935 is a new versatile austenitic alloy with the composition 35Ni-30Fe-27Cr-6.5Mo-0.28N and a PREN of 52. It has an extreme pitting resistance which makes the grade a good candidate for O&G applications. The alloy is available in several strength levels with good ductility...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13012
... compatibility wiThexisting manufacturing processes. A series of immersion tests in a variety of chloride brines and temperatures as well as electrochemical measurements such as potentiodynamic polarization curves were conducted to rank the alloys in chloride-rich environments and establish their potential...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13025
... ABSTRACT The precipitation-hardenable Nickel Alloy UNS (1) N07718 is one of the most commonly applied alloy in the oil and gas industry. Enriched with amounts of niobium, molybdenum, titanium and aluminum, this alloy is known as having good corrosion resistance in sour gas applications while...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13077
... the difference in CCT-values for the two alloys, to the benefit of UNS S31266, for which the CCT-value was the same at 0.28 and 1.58 Nm. The difference in CCT-values between methods and alloys is discussed and compared with published results. INTRODUCTION The Importance of Crevice Corrosion Resistance...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13021
... ABSTRACT The US Navy has used copper alloys for decades for a wide range of applications. This paper seeks to provide insight into some of the applications and the historical corrosion issues faced. The role of the environment will be highlighted. Additionally, the key issue of knowledge...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13421
... ABSTRACT Nickel alloy UNS N10276 is nominally a single-phase, corrosion-resistant alloy used in a wide variety of applications, particularly in the chemical process industries. Rich in alloying elements like Mo and Cr that promote corrosion resistance, the grain boundary precipitation of mu...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13455
... ABSTRACT Within the framework of a Joint Industrial Project (JIP) sponsored by several petroleum companies, the behavior of several Precipitation Hardened (PH) Ni-based alloys with respect to Hydrogen Induced Stress Cracking (HISC) resistance was studied using the Slow Strain Rate Tensile...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13010
... ABSTRACT Copper alloys are used in many seawater applications due to their environmentally assisted cracking resistance, general corrosion, pitting and crevice corrosion resistance as well as their anti-fouling properties. Age hardenable copper alloys such as copper-beryllium (Cu...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13070
... ABSTRACT For many decades corrosion resistant copper alloys have been utilized in sea water applications for their unique combination of properties, anti-biofouling, non-sparking, resistance to cavitation corrosion, excellent wear properties and low magnetic permeability. One disadvantage...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13195
... analyzed with SEM, XEDS, XRD and light microscope. The aim of corrosion testing was to simulate high temperature geothermal environment i.e. IDDP-1 (Iceland Deep Drilling well #1) conditions where previous on-site corrosion testing of some alloys had been conducted. The experiment casts a light...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13232
... ABSTRACT The re-passivation kinetics and composition of the passive film of CoCrMo alloys in simulated body fluids have been investigated, with key emphasis being to assess the effect that proteins have on these features. The kinetics were analyzed using potentiostatic polarization, applying...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13156
... ABSTRACT The changing material demands in the chemical processing and related industries calls for new and more performing materials. UNS N08034 is a new super-austenitic stainless steel alloyed with about 27 % chromium and 6.5 %-molybdenum. Further it has an intended addition of nitrogen...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13123
... such as: temperature, oxygen content, biofilm and fouling activity, flow rates and hydrostatic pressure. For passive materials such as Cr Ni Mo stainless steels and nickel-based alloys, the specificity of the above parameters in deep sea environment might have an impact on both initiation and propagation phases...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13162
... categories 4a and 4c type nickel-based alloys defined by ISO15156-3 for down-hole applications. Good resistance to stress corrosion cracking (SCC) has been found in literature for the OCTG grade of these alloys. Of similar Ni+2Mo+0.5Cr content and high CPT in chloride solutions observed in this study, UNS...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13258
... ABSTRACT Metal dusting can be a severe failure mechanism of metallic materials exposed to industrial process environments containing high carbon activity. There have been many studies on the metal dusting behaviors of alloys in 1 atm environments, but some recent laboratory-scale studies have...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13284
... ABSTRACT Precipitation Hardened (PH) Ni-based alloys have proved to be sensitive to Hydrogen Induced Stress Cracking (HISC), and HISC related failures in the Oil and Gas industry have been experienced in the case of UNS N07718, UNS N07725 and UNS N07716. Slow Strain Rate Tensile (SSRT) tests...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13294
... define safe operating limits and procedures and enhanced surveillance. This paper is a compilation of some of the important lessons learnt from such incidents in the recent past related to many different equipment in X-trees and completion of material ranging from carbon steel to nickel alloys...

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