Point defects and the creep of metals

Nichols, F.A.

doi:10.1016/0022-3115(78)90260-x

Cited by 11 publications

(1 citation statement)

References 37 publications

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“…Although constitutive relations currently used in the codes are, in general, crude, many hopeful signs are evident that a more mechanistic approach will soon emerge. For LWR cladding, Nichols has made a careful analysis of the mechanics of irradiation creep [68], and extensive Zircaloy properties studies are underway at laboratories in several countries [62,69,70,71]. The development of the MATPRO program [72] for Zircaloy properties is a compilation of such efforts.…”

Section: Constitutive Relationsmentioning

confidence: 99%

Structural analysis of reactor fuel elements

Weeks

1978

Nuclear Engineering and Design

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Section: Constitutive Relationsmentioning

confidence: 99%

Structural analysis of reactor fuel elements

Weeks

1978

Nuclear Engineering and Design

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On the point defect – dislocation interaction in rate theory

Fastenau

Penning

1981

Phys. Stat. Sol. (a)

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The rate of the reaction of point defects and dislocations is studied for periodic and random arrangements of the sinks. Models based on diffusion and on random walk theory are used. The latter model is based on the number of distinct lattice sites visited by a random walking cloud of lattice points. An equation approximating this quantity is given. Cood agreement between the various models for the periodic and for the random arrangement is obtained. Only in the second case deviations from first-order kinetics are found. Consequences of this effect on the theoretical models of swelling caused by irradiation and models dealing with the annealing of point defects by capture by dislocations will be discussed. Die Reaktionsrate von Punktdefekten und Versetzungen wird fiir periodische und statistische Anordnungen von Senken untersucht. Es werden Modelle verwendet, die sich auf die Diffusion und die Theorie zufalliger Bewegungen griinden. Das letztere Modell basiert aufder Zahl getrennter Gitterplatze, die von einer statistisch sich bewegenden Wolke von Gitterpliitzen beriihrt werden. Es wird eine Gleichung aufgestellt, die diese GroBe approximativ angibt. Zwischen den verschiedenen Modellen fiir die periodische und die statistische Anordnung wird gute vbereinstimmung erzielt. Nur im zweiten Fall werden Abweichungen von der Kinetik zweiter Ordnung gefunden. Konsequenzen dieses Effekts auf das theoretische Modell des durch Bestrahlung verurmchten Anschwellens sowie auf Modelle, die das Ausheilen von Punktdefekten infolge Einfang durch Versetzungen betrachten, werden diskutiert.

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On the sipa contribution to radiation creep

Nichols

1979

Journal of Nuclear Materials

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Point defects and the creep of metals

Cited by 11 publications

References 37 publications

Structural analysis of reactor fuel elements

Structural analysis of reactor fuel elements

On the point defect – dislocation interaction in rate theory

On the sipa contribution to radiation creep

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