Development of radiation resistant materials for advanced nuclear power plant
Author:
- E. A. LittleELE. A. Little
- 1 May 2006
- journal article
- Published by SAGE Publications in Materials Science and Technology
- Vol. 22 (5) , 491-518
Abstract
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.Keywords
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