1994
DOI: 10.1016/0169-4332(94)00152-9
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Surface enrichment of niobium on Inconel 718 (100) single crystals

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Cited by 25 publications
(5 citation statements)
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“…This suggests that the low binding energy peak at 203.1 eV can be attributed to the metallic Nb instead of oxidized state of Nb and that the binding energy value is shifted to a higher value from the value of the bulk Nb metal. The same phenomenon was observed in segregation study of Nb on an Inconel 718 (100) single crystal (austenitic NiCrbased superalloy), where metallic Nb was found at 203.4 eV, and concluded to originate from possible formation of a Nb intermetallic surface phase [41]. Such core level shifts (CLSs) for metallic Nb in intermetallic compounds have also been reported for Ni 3 Nb model system [42], NbeZr interface [43], Nb in TiAl alloy [44], and Cr 2 Nb [45].…”
Section: Initial Surface Oxidationsupporting
confidence: 58%
“…This suggests that the low binding energy peak at 203.1 eV can be attributed to the metallic Nb instead of oxidized state of Nb and that the binding energy value is shifted to a higher value from the value of the bulk Nb metal. The same phenomenon was observed in segregation study of Nb on an Inconel 718 (100) single crystal (austenitic NiCrbased superalloy), where metallic Nb was found at 203.4 eV, and concluded to originate from possible formation of a Nb intermetallic surface phase [41]. Such core level shifts (CLSs) for metallic Nb in intermetallic compounds have also been reported for Ni 3 Nb model system [42], NbeZr interface [43], Nb in TiAl alloy [44], and Cr 2 Nb [45].…”
Section: Initial Surface Oxidationsupporting
confidence: 58%
“…When the temperature exceeds 650 • C, the weight gain becomes smaller. This is because of the carbon oxide evolution during exposure of the surface at high temperature [20,21]. In this paper, the prepared sample can be oxidized thoroughly at about 600 • C. But the sample has good thermal stability below 400 • C.…”
Section: Resultsmentioning
confidence: 95%
“…Indeed, it is rather surprising that the heat free of delta phase is the most sensitive to IGSCC. An explanation to the environment-induced intergranular cracking of heat A could be found in the work of Wei et al [18][19][20][21]. They proposed for nickel based superalloys (e.g.…”
Section: Discussionmentioning
confidence: 95%