Publication:
Coking and dusting of Fe-Ni alloys in CO-H2-H2O gas mixtures

dc.contributor.author Zhang, Jianqiang en_US
dc.contributor.author Young, David en_US
dc.date.accessioned 2021-11-25T13:14:46Z
dc.date.available 2021-11-25T13:14:46Z
dc.date.issued 2008 en_US
dc.description.abstract Metal dusting of Fe-Ni alloys was investigated in a CO-H2-H 2O-Ar gas corresponding to a C = 19.6 at 650 °C. Thermogravimetric analysis showed that increasing the nickel content in the alloy decreased the initial rate of carbon uptake. A uniform Fe3C scale formed on pure iron, a layer with mixed structures of Fe3C, γ and α-Fe developed on ferritic Fe-5Ni, and small amounts of Fe3C developed at the surface of an austenite layer grown on two-phase (α + γ) Fe-10Ni. At nickel levels above 10%, no carbide appeared. These observations are shown to be broadly consistent with local equilibrium according to the Fe-Ni-C phase diagram. However, the failure of higher nickel austenitic alloys to form the (Fe,Ni)3C expected at high carbon activities indicates a barrier to nucleation and growth of this phase. Graphite deposition was catalysed by (Fe,Ni)3C on ferritics and by the metal itself on austenitics. The rates of carbon deposition on Fe-60Ni corresponded to the existence of three parallel and independent paths: the synthesis gas, the Boudouard and the carbon methanation reactions. en_US
dc.identifier.uri http://hdl.handle.net/1959.4/39425
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.subject.other Iron alloys en_US
dc.subject.other Alloys en_US
dc.subject.other Metallic compounds en_US
dc.subject.other Metals en_US
dc.subject.other Nickel alloys en_US
dc.subject.other Nickel en_US
dc.title Coking and dusting of Fe-Ni alloys in CO-H2-H2O gas mixtures en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri http://purl.org/coar/access_right/c_14cb
unsw.identifier.doiPublisher http://dx.doi.org/10.1007/s11085-008-9115-0 en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 3-4 en_US
unsw.relation.ispartofjournal Oxidation of Metals en_US
unsw.relation.ispartofpagefrompageto 189-211 en_US
unsw.relation.ispartofvolume 70 en_US
unsw.relation.originalPublicationAffiliation Zhang, Jianqiang, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Young, David, Materials Science & Engineering, Faculty of Science, UNSW en_US
unsw.relation.school School of Materials Science & Engineering *
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