The influence of metal lattice vacancies on the oxidation of high temperature materials

Gibbs, G. B.; Hales, R.

doi:10.1016/0010-938x(77)90004-x

Cited by 142 publications

(43 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Flux of vacancies is assumed to come either from the outer surface (vacancy injection) or from the metal interior (Kirkendall effect). The former mechanism considers that new oxide is formed at the gas/scale interface, thus vacancies are injected to counterbalance the outward cation diffusion [43]. In the present case, however, results of the two-stage oxidation experiment performed at 1100 8C provide evidence that, at least after 3 h exposure, a predominant inwards scale growth occurs, i.e.…”

Section: Discussioncontrasting

confidence: 63%

Oxidation behaviour of novel ODS FeAlCr intermetallic alloys

et al. 2005

View full text Add to dashboard Cite

Section: Discussioncontrasting

confidence: 63%

Oxidation behaviour of novel ODS FeAlCr intermetallic alloys

et al. 2005

View full text Add to dashboard Cite

“…Past studies have inferred that this porosity exists in channel form with a nanometric diameter size [23,24]. Depending on the study and the authors, the nanochannel network would be due to either cracks formed through the oxide layer because of oxide growth stresses [21,23,[25][26][27][28] or would result from oxide dissociation over voids formed at the oxide/metal interface by vacancies condensation [29,30]. This oxide dissociation would start preferentially above oxide grain boundaries where iron vacancies are injected [25,31].…”

Section: Mechanism Of Duplex Oxide Layer Formation On T91mentioning

confidence: 99%

Corrosion of 9Cr Steel in CO2 at Intermediate Temperature I: Mechanism of Void-Induced Duplex Oxide Formation

et al. 2011

View full text Add to dashboard Cite

Under CO 2 exposure at an intermediate temperature, typically 550°C, 9Cr-1Mo steel forms a duplex oxide scale made of an outer magnetite layer and an almost-as-thick inner Fe-Cr rich spinel oxide layer. It is proposed that the inner Fe-Cr spinel layer grows according to a mechanism involving void formation at the oxide/ metal interface. The driving force for pore formation is the outward magnetite growth: iron vacancies are injected at the oxide/metal interface then condense into voids. The fresh metallic surface made available is then oxidized by CO 2 , which diffuses fast through the scale. The physical aspects, the integrity and the nature of the scale are shown to be very dependent on the oxygen potential existing in the environment.

show abstract

“…Gibbs et al [21] analyzed the development of micro-channels above interfacial voids, which attempted to explain the effect of stresses on oxide-scale failure as illustrated by Fig. 4.…”

Section: Oxide-scale Failurementioning

confidence: 99%

Effect of Mechanical Loading on the Oxidation Kinetics and Oxide-Scale Failure of Pure Ni

Zhou

Wang

2008

Oxid Met

View full text Add to dashboard Cite

The oxidation kinetics and mechanism of oxide-scale failure of pure Ni oxidized under external static compressive and tensile loads were studied. The results showed that both types of mechanical loads accelerated the oxidation rate, but the effect was different for the two types. Compressive loading (CL) affected it by improving the plasticity of oxide scales, and tensile loading (TL) affected it by amplifying the compaction of the oxide-metal interface. As for the oxide-scale failure, CL can delayed cracking, TL accelerated brittle failure. The study analyzed the effect of external load on the oxidation kinetics and the failure mechanism of oxide scales.

show abstract

The influence of metal lattice vacancies on the oxidation of high temperature materials

Cited by 142 publications

References 45 publications

Oxidation behaviour of novel ODS FeAlCr intermetallic alloys

Oxidation behaviour of novel ODS FeAlCr intermetallic alloys

Corrosion of 9Cr Steel in CO2 at Intermediate Temperature I: Mechanism of Void-Induced Duplex Oxide Formation

Effect of Mechanical Loading on the Oxidation Kinetics and Oxide-Scale Failure of Pure Ni

Contact Info

Product

Resources

About