Effect of nuclear radiation on the microhardness of SAV-1 avials

The microhardness of the initial specimens of SAV-1 avials was experimentally investigated. Modification of this mechanical characteristic as a result of alloy irradiation in the channels of a research nuclear reactor WWR-SM was studied. The nonlinear pattern of material hardening after irradiation...

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Bibliographic Details
Published in:Strength of materials 2011-01, Vol.43 (1), p.109-112
Main Authors: Abdukadyrova, I. Kh, Tadzhibaev, D. P.
Format: Article
Language:English
Subjects:
Aluminum alloys
Blocking
Building materials
Channels
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Decay
Defects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Hardening
Hardness
Indentation
Inelasticity (thermoplasticity, viscoplasticity...)
Irradiation
Materials Science
Mechanical contact (friction...)
Mechanical properties
Microhardness
Nuclear facilities
Nuclear radiation
Physics
Solid Mechanics
Structural and continuum mechanics
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Summary:The microhardness of the initial specimens of SAV-1 avials was experimentally investigated. Modification of this mechanical characteristic as a result of alloy irradiation in the channels of a research nuclear reactor WWR-SM was studied. The nonlinear pattern of material hardening after irradiation at low fluence rates (10 15 – 10 18 neutron/cm 2 ) was revealed. The radiation effect of avial microhardness variations is established to be a certain function of irradiation doses and indentation loads. The possible reasons of an increase in hardness of irradiated specimens are discussed. The radiation-induced hardening of aluminum alloys is assumed to be determined by generation of point flaws and dislocations, blocked by defects and interstitial phase decay products.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-011-9274-0