000015440 001__ 15440
000015440 005__ 20161115100221.0
000015440 04107 $$aeng
000015440 046__ $$k2016-08-21
000015440 100__ $$aXiao, Xiazi
000015440 24500 $$aPrediction of mechanical behaviors of radiated Fe-Cr alloys by plasticity theory

000015440 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015440 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015440 506__ $$arestricted
000015440 520__ $$2eng$$aThe mechanical behavior of non-irradiated and neutron irradiated Fe-Cr alloys is studied by means of a self-consistent plasticity theory, which accounts for the radiation-induced defects at the grain level by using an elastic-viscoplastic self-consistent method as the scale transition to obtain polycrystalline responses. Attention is paid to two types of radiation-induced defects: interstitial dislocation loops and solute rich clusters, which are the main sources of hardening in Fe-Cr alloys at medium irradiation doses. Both the hardening mechanisms and microstructure evolutions are investigated by a crystal plasticity model by using recently available experimental data on microstructures, and by implementing hardening rules on the basis of atomistic data. Dislocation loops are treated as strong thermally activated obstacles and solute rich clusters as weak precipitates that can break under shear. Good agreement with experimental data is achieved for both the yield stress and strain hardening of non-irradiated and irradiated Fe-Cr alloys.

000015440 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015440 653__ $$a

000015440 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015440 720__ $$aXiao, Xiazi
000015440 8560_ $$ffischerc@itam.cas.cz
000015440 8564_ $$s194740$$uhttps://invenio.itam.cas.cz/record/15440/files/TS.SM13-5.03.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2726, code TS.SM13-5.03
.
000015440 962__ $$r13812
000015440 980__ $$aPAPER