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Keywords: segregation
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Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11378
... this reliability issue. Simulations showed that Ga segregates to the grain boundaries during solidification and then diffuses back into the grains during cooling to room temperature. Simulations also showed that by controlling the cooling rate, the segregation of Ga at the grain boundaries can be maintained. Al-Ga...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5853
... that the brittle-like failure is intergranular and not a direct result of slip band cracking or initiation from carbides. We also rule out the role of GB segregation in the observed HE behavior through transmission electron microscopy analysis. These results suggest that GB character may play a key role...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5767
... composition nozzle permission concentration chromium depletion north anna nozzle 31 segregation grain boundary degradation apt result compact tension specimen stem ed result government work carbide 7HVWLQJ DQG $QDO\VHV RI 'DYLV %HVVH 816 1RQWURO 5RG 'ULYH 0HFKDQLVP...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2600
... ABSTRACT The assessment of recently failed external post-tensioned tendons from a bridge in Florida provided some insight on the material and environmental conditions of the tendon components leading to the failure. Segregated grout material was observed in the vicinity of the corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10293
... temperature. HIC occurred despite acceptable mechanical properties and chemistry, a mill quality plan, certification by API and ISO, and favorable mill audit results. Susceptibility to HIC was primarily attributed to centerline segregation and inhomogeneous microstructure of parent skelp. Unless a mill can...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09352
... metals & mining H2S management Hydrogen Sulfide oilfield chemistry Corrosion Management heat treatment Sulfide stress sulfur content Production Chemistry specification segregation steel behavior grade 70 carbon-manganese steel hardness maximum hardness hydrogen Corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08100
... for enhancing the corrosion resistance, and/or by the elimination of the harmful effect of phosphorus segregation to be drained from the grain boundary to the molybdenum enriched phase. In this study, the molybdenum precipitation behavior along grain boundary by PWHT of super martensitic stainless steels...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2001, March 11–16, 2001
Paper Number: NACE-01210
... to be a issue. Argon plasma cleaning and Precision Ion Polishing System cleaning did not remove the carbon contamination from the sample surface. There were carbide precipitates along ferrite:ferrite grain boundaries, and manganese and carbon were segregated at the ferrite:ferrite grain boundary between...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2001, March 11–16, 2001
Paper Number: NACE-01211
... metals & mining drilling fluid chemistry drilling fluids and materials drilling fluid property drilling fluid formulation crack length segregation Photomicrograph pearlite stage ii crack growth rate composition crack growth rate drilling fluid selection and formulation Upstream...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2000, March 26–31, 2000
Paper Number: NACE-00359
... drilling fluid selection and formulation Upstream Oil & Gas drilling fluid chemistry drilling fluids and materials crack length composition drilling fluid property segregation specimen Photomicrograph boundary crack growth rate cycle day pipeline steel microstructure...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2000, March 26–31, 2000
Paper Number: NACE-00382
... Corrosion Inhibition Upstream Oil & Gas sulfide stress corrosion segregation Production Chemistry hic sensitivity SSCC resistance metals & mining H2S management resistance hic resistance oilfield chemistry Corrosion Management line pipe steel steel hardness specimen...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2000, March 26–31, 2000
Paper Number: NACE-00192
... for use in a nuclear fuel reprocessing plant 1) and has been studied extensively from various metallurgical aspects 2}-8). As a result of the studies, the intergranularcorrosion is believed to be caused by the segregation of impurities to grain boundaries and the resultant formation of active sites...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 99, April 25–30, 1999
Paper Number: NACE-99597
... metals & mining Corrosion Management Grain Growth oilfield chemistry strength segregation grain size steel Workplace Hazard Production Chemistry hic resistant steel resistant steel centerline segregation Corrosion Inhibition specimen Microstructure mechanical property notch...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98423
.... Upstream Oil & Gas pt examination Artificial Intelligence weld transfer line LNG segregation ductility corrosion liquified natural gas gas monetization si segregation nominal chemistry examination liquation specimen boundary fracture surface nbc procedure Welding investigation...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98138
...Paper No. 138 GRAIN BOUNDARY SEGREGATION IN AUSTENITIC STAINLESS STEELS AND EFFECTS ON INTERGRANULAR STRESS CORROSION CRACKING IN LIGHT-WATER REACTOR ENVIRONMENTS Stephen M. Bruemmer Pacific Northwest National Laboratory Richland, WA ABSTRACT Grain boundary composition in austenitic stainless...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98139
... cracking of stainless steel reactor core components. Therefore it is important to understand (1) how initial thermal processing affects thermal nonequilibrium segregation (TNES), (2) how service exposure affects radiation-induced segregation (RIS), and (3) how temperature affects post-irradiation annealing...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98247
... Upstream Oil & Gas segregation Nb content grain boundary Production Chemistry aqueous solution impurity segregation SCC susceptibility carbonated pure water fresh surface oilfield chemistry Corrosion Management specimen elevated temperature stress corrosion Corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98264
... Corrosion Inhibition H2S management series alloy austenitic stainless steel ni-base alloy Production Chemistry precipitation Metall alloy Bruemmer Upstream Oil & Gas depletion segregation Igscc grain boundary oilfield chemistry Intergranular stress Corrosion Corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 98, March 22–27, 1998
Paper Number: NACE-98168
... 304L SS, aging treatments ranging from 873 K to 1073 K for 1 h enhance intergranularcorrosion. During the aging treatments, impurities should be segregated to the grain boundaries. The corrosion behaviors were discussed from a standpoint of impurity segregation to grain boundaries. Keywords: austenitic...
Proceedings Papers
Publisher: NACE International
Paper presented at the Corrosion97, March 9–14, 1997
Paper Number: NACE-97024
... Corrosion Inhibition H2S management resistance ACC pipe metals & mining Corrosion Management chemical composition steel UOE pipe hardness line pipe Production Chemistry segregation content segregation specimen center segregation oilfield chemistry strength Mn content...
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