Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon

Meifeng Li; Yuelin Zhu; Chungen Zhou

doi:10.1016/j.corsci.2015.05.018

Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon

Meifeng Li
, Yuelin Zhu
, Chungen Zhou^*

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Effect of the rare earth element yttrium on the coking behavior of Fe-based superalloy has been studied. The coking process of Fe-based superalloy during dodecane pyrolysis includes three stages - incubation period, coke protrusions growing and graphite layer stacking. Fe-based superalloy with yttrium addition exhibits the better coking and carburization resistance. The reason is that Y doped in Fe-based superalloy eliminates the intergranular coking and carburization by forming yttrium oxides to inhibit the aggregation of Cr₂O₃ at the grain boundary in initial period of coking behavior, thus internal Cr₂O₃ layer forms and effectively blocks the permeation of outer graphite.

Original language	English
Pages (from-to)	81-87
Number of pages	7
Journal	Corrosion Science
Volume	98
DOIs	https://doi.org/10.1016/j.corsci.2015.05.018
State	Published - 1 Sep 2015

Keywords

A. Rare earth element
A. Superalloy
C. Carburization

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10.1016/j.corsci.2015.05.018

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title = "Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon",

abstract = "Effect of the rare earth element yttrium on the coking behavior of Fe-based superalloy has been studied. The coking process of Fe-based superalloy during dodecane pyrolysis includes three stages - incubation period, coke protrusions growing and graphite layer stacking. Fe-based superalloy with yttrium addition exhibits the better coking and carburization resistance. The reason is that Y doped in Fe-based superalloy eliminates the intergranular coking and carburization by forming yttrium oxides to inhibit the aggregation of Cr2O3 at the grain boundary in initial period of coking behavior, thus internal Cr2O3 layer forms and effectively blocks the permeation of outer graphite.",

keywords = "A. Rare earth element, A. Superalloy, C. Carburization",

author = "Meifeng Li and Yuelin Zhu and Chungen Zhou",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.corsci.2015.05.018",

language = "英语",

volume = "98",

pages = "81--87",

journal = "Corrosion Science",

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TY - JOUR

T1 - Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon

AU - Li, Meifeng

AU - Zhu, Yuelin

AU - Zhou, Chungen

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Effect of the rare earth element yttrium on the coking behavior of Fe-based superalloy has been studied. The coking process of Fe-based superalloy during dodecane pyrolysis includes three stages - incubation period, coke protrusions growing and graphite layer stacking. Fe-based superalloy with yttrium addition exhibits the better coking and carburization resistance. The reason is that Y doped in Fe-based superalloy eliminates the intergranular coking and carburization by forming yttrium oxides to inhibit the aggregation of Cr2O3 at the grain boundary in initial period of coking behavior, thus internal Cr2O3 layer forms and effectively blocks the permeation of outer graphite.

AB - Effect of the rare earth element yttrium on the coking behavior of Fe-based superalloy has been studied. The coking process of Fe-based superalloy during dodecane pyrolysis includes three stages - incubation period, coke protrusions growing and graphite layer stacking. Fe-based superalloy with yttrium addition exhibits the better coking and carburization resistance. The reason is that Y doped in Fe-based superalloy eliminates the intergranular coking and carburization by forming yttrium oxides to inhibit the aggregation of Cr2O3 at the grain boundary in initial period of coking behavior, thus internal Cr2O3 layer forms and effectively blocks the permeation of outer graphite.

KW - A. Rare earth element

KW - A. Superalloy

KW - C. Carburization

UR - https://www.scopus.com/pages/publications/84937966842

U2 - 10.1016/j.corsci.2015.05.018

DO - 10.1016/j.corsci.2015.05.018

M3 - 文章

AN - SCOPUS:84937966842

SN - 0010-938X

VL - 98

SP - 81

EP - 87

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon

Abstract

Keywords

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