Radiation-induced segregation in metals

English, C.A.; Murphy, Susan; Perks, J.M.

doi:10.1039/ft9908601263

Cited by 23 publications

(5 citation statements)

References 11 publications

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“…Other models in this class, including those of Marwick [40], English et al [63] and Wolfer [64], who used an approach based on the thermodynamics of irreversible processes. A related, but alternative approach was proposed by Grandjean et al [65]; it included the effect of local chemical environments on jump frequencies by using a mean-field model on a lattice, with a point approximation for the configurational entropy [66].…”

Section: Mean-field Rate-theory Modelsmentioning

confidence: 99%

Radiation-induced solute segregation in metallic alloys

Ardell

Bellon

2016

Current Opinion in Solid State and Materials Science

113

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The subject of radiation-induced solute segregation (RIS) in metallic alloys is reviewed. RIS manifests itself in several different ways, including diffusion to point-defect sinks (dislocations, grain boundaries, voids, etc.), which can induce precipitation in undersaturated alloys, as well as self-organization of solute clusters and precipitation in defect-free material.Diffusion in dilute and concentrated alloys is highlighted, as are theories of RIS that include new ideas on diffusion of complexes involving coupling between fluxes of point defects and of solute atoms. Many important experimental observations are presented, including up-to-date findings using atom-probe tomography, with special emphasis on solute segregation in austenitic and ferritic steels. Results from computational modeling and theory are also presented and discussed in light of experimental findings. Examples illustrating the factors affecting RIS are shown and some important outstanding issues that impact the current understanding of RIS are described and discussed.

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Section: Mean-field Rate-theory Modelsmentioning

confidence: 99%

Radiation-induced solute segregation in metallic alloys

Ardell

Bellon

2016

Current Opinion in Solid State and Materials Science

113

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“…This process results in coupled transport of solute atoms either towards, or away from, suitable sinks (e.g. interfaces) by point defect fluxes, as a consequence of solute-point defect interactions [17,18]. The mechanism of RIS in ferritic steel have been summarized by Faulkner and coworkers [24,25] and data trends for a broad range of solutes reviewed by Little [3].…”

Section: Solute Segregationmentioning

confidence: 99%

Formation of austenite in high Cr ferritic/martensitic steels by high fluence neutron irradiation

Faulkner

Morgan

2008

Journal of Nuclear Materials

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“…Several reviews of RIS are available in the literature. [44][45][46] The direction of flow of the solute -i.e. either towards or away from typical point defect sinks, which can be interfaces, grain boundaries, cavities, etc.…”

Section: Radiation Induced Segregationmentioning

confidence: 99%

Development of radiation resistant materials for advanced nuclear power plant

Little¹

2006

Materials Science and Technology

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A unique feature of the environment of nuclear power reactors is the presence of high energy neutron radiation, which can lead to degradation processes in the materials of critical components. An understanding of the operative elevated temperature radiation damage mechanisms enables these effects to be minimised by appropriate alloy selection together with compositional optimisation. An overview of these aspects relevant to advanced fission and fusion reactor systems is presented. Several key examples are highlighted and include radiation embrittlement of low alloy pressure vessel steels for pressurised water reactors, coating designs for fuel in high temperature pebble bed reactors, and selection and design of low activation materials for proposed tokomak fusion reactor devices. In addition, void swelling, non-equilibrium solute segregation and radiation induced precipitation processes in alloys at high displacement doses and relevant to several reactor systems are covered. Likely trends in future nuclear power plant design and associated materials requirements are discussed.

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Radiation-induced segregation in metals

Cited by 23 publications

References 11 publications

Radiation-induced solute segregation in metallic alloys

Radiation-induced solute segregation in metallic alloys

Formation of austenite in high Cr ferritic/martensitic steels by high fluence neutron irradiation

Development of radiation resistant materials for advanced nuclear power plant

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