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Keywords: depletion
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Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13446
... analyses we have conducted, in this instance the internal alloy grain boundary attack was not directly related to S. Rather, only internal oxidation and localized nanoporosity were observed along the alloy grain boundaries, with associated local nanoscale Cr depletion and Ni enrichment. Mechanistic...
Proceedings Papers
William Kovacs, III, Liu Cao, Tummala Tummala, Fritz Grensing, Robert Kusner, Carole Trybus, Carolyn Curran
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11322
...-21Sn-18Cu-8Cl-4O by weight. There were also low levels of magnesium and sulfur detected. The white network around the grains at the top of Figure 6b had a measured composition of 56Ni-33Sn-9Cu-2Cl. The matrix was depleted in tin by approximately 25% by weight as compared to its bulk composition...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11152
... Inhibition H2S management original pipeline subsea inspection planning Upstream Oil & Gas inspection texas 77084 oilfield chemistry Corrosion Management Publication Division pipeline operation new pipeline section integrity management pipeline section anode depletion anode Production...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4251
... above high-energy grain boundaries. No IG corrosion is observed, however filamentary oxidation from the surface into the matrix is seen at distances >100 nm from the grain boundaries. flowline corrosion riser corrosion cr 2 materials and corrosion depletion Imaging examination Pipeline...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2011, March 13–17, 2011
Paper Number: NACE-11195
... production monitoring well integrity air 20 metals & mining Subsurface Corrosion depletion oxidation testing Reservoir Surveillance oxidation attack Cr concentration alloy oxidation resistance average metal solid-solution strengthened alloy metal loss production control...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09156
... in a flue gas composition with high pO2 (5.6%) and pH2O (14.7%), see table I. The fuel is mixed in the recuperator and ignited and burned in the burner nozzle tube, see upper part of figure 1. The flue gas is then passed through in the gap between the burner nozzle. enhanced recovery depletion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09261
... the oxide. On the ID, more significant Cr depletion occurred, particularly on the alloy grain boundaries, Figure 3d. Figure 4 shows line profiles from two locations (180° apart) in each section. There was an obvious difference in thickness on one side of the tube in each location, Figure 4a. If the starting...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09266
... Reservoir Surveillance oxidation attack stainless steel metals & mining Subsurface Corrosion depletion production control production logging air 10 oxidation testing average metal maximum internal penetration alloy air 5 heat-resistant alloy production monitoring well...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07470
... and leads to depletion of A1 and Cr in the metal substrate beneath the oxide. The depletion was observed to occur to a similar extent in both the weld and base metal for N06025. The maximum intemal oxidation depth of the base metal at 900° and 1100°C was lower than several other commercial Ni-base alloys...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07092
... concern recently. A number of research works have been conducted to clarify the mechanism and to establish the measures. The most likely mechanism of IGSCC is chromium depletion on grain boundary because it is observed in lean grade SMSS, which contains no molybdenum. However, neither depletion nor...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06599
.... The combined production from these fields is 15.5 x 106 std m³/day gas and 159,000 production monitoring production logging Drillstem Testing high pressure high temperature depletion flow assurance Reservoir Surveillance flow metering drillstem/well testing production control sand control...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2005, April 3–7, 2005
Paper Number: NACE-05449
... international gas turbine oilfield chemistry depletion composition metals & mining Corrosion Management Recuperator alloy Corrosion Inhibition H2S management Specimen mass Change stainless steel sheet specimen gas turbine humid air mass gain type 347 Mn content creep strength...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2004, March 28–April 1, 2004
Paper Number: NACE-04093
... Corrosion Inhibition Upstream Oil & Gas cathodic protection surface area enhanced recovery H2S management anode mass wastage oilfield chemistry Corrosion Management marine structure pipeline anode resistance slope parameter anode anode depletion Production Chemistry...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2002, April 7–11, 2002
Paper Number: NACE-02393
... on the subsurface depletion of chromium. The N08811 alloy performed the worst, undergoing rapid weight-loss kinetics after a period of relatively protective oxidation. The N06045 alloy exhibited the best oxidation resistance, which was believed to be due in part to the formation of a fine distribution of silica...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2002, April 7–11, 2002
Paper Number: NACE-02519
... rich oxide layer, the underlying metal being chromium depleted. In addition for alloy 600, the chemical composition of the metal close to the oxide scale has been analysed using EDX in a Scanning Electron Microscope equipped with a Field Emission Gun (FEG-SEM) and Secondary Ion Mass Spectrometry (SIMS...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2002, April 7–11, 2002
Paper Number: NACE-02055
... and Operations depletion Cr depletion duplex stainless steel corrosion resistance ABSTRACT Two novel electrochemical techniques have been developed for detection of sigma and related phases in stainless steels. Both are based on anodic galvanostatic polarization. The first uses a mildly basic...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2001, March 11–16, 2001
Paper Number: NACE-01163
... variation. It is the combination of thermal stresses and poor scale adherence that cause the scale to crack and eventually breakdown under thermal cycling conditions. Breakdown marks the end of the useful service life of an alloy and, for a chromia former, is a consequence of chromium depletion at the scale...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2001, March 11–16, 2001
Paper Number: NACE-01154
... depletion high temperature alloy ds alloy concentration profile average effective interdiffusion coefficient oxidation diffusion couple alloy oxide scale Matano plane composition alloy scale interface CHROMIUM DEPLETION IN HIGH TEMPERATURE ALLOYS DURING ELEVATED TEMPERATURE...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 99, April 25–30, 1999
Paper Number: NACE-99476
... depletion 5-month exposure coupon corrosion cell dissolution alloy CRM YM bacteria anodic polarization curve Paper No. 476 CORROSION OF CANDIDATE CONTAINER MATERIALS BY YUCCA MOUNTAIN BACTERIA Tiangan Lian Sue Martin Denny Jones* Angel Rivera Joanne Horn Lawrence Livermore National Laboratory...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98416
... flowline corrosion riser corrosion Thickness Subsurface Corrosion depletion oxide high temperature alloy Pipeline Corrosion well integrity alloy 602 materials and corrosion Upstream Oil & Gas supercritical water oxidation system alloy alloy 686 alloy 625 corrosion attack...
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