Results 251 to 260 of about 5,873 (297)

Assessment of irradiation hardening by DD simulations

Computational Materials Science, 2014
Abstract Understanding of material degradation due to irradiation in structural materials of future reactors is of prime importance for current research as these materials are expected to operate at severe conditions of high temperature and high irradiation doses. The hierarchical multi-scale simulations act as supplement to the costly experiments on
P.V. Durgaprasad, B.K. Dutta, R.K. Singh
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Modeling of irradiation hardening of polycrystalline materials

Computational Materials Science, 2011
High energy particle irradiation of structural polycrystalline materials usually produces irradiation hardening and embrittlement. The development of predictive capability for the influence of irradiation on mechanical behavior is very important in materials design for next-generation reactors.
Dongsheng Li, Hussein Zbib, Hamid Garmestani, Xin Sun, Mohammad Khaleel   +4 more
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The hardening and embrittlement of steel by irradiation with neutrona

Philosophical Magazine, 1957
The tensile yield and fracture strengths of a structural steel have been measured before and after irradiation with neutrons. The fracture strength increases with irradiation at the same rate as the yield strength and the embrittlement cannot be ascribed to a loss of cohesive strength.
A. T. Churchman, I. Mogford, A. H. Cottrell   +2 more
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The surface hardening of X-irradiated NaCl

Acta Metallurgica, 1959
Abstract The increase in Vickers hardness due to exposure of NaCl single crystals to 40 kV unfiltered X-rays is studied both as a function of irradiation time and of depth, i.e. the distance from the surface facing the beam. The optical absorption was also measured, as a function of these variables, on the same crystals in order to find a possible ...
E Aerts, S Amelinckx, W Dekeyser
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Irradiation Hardening and Deformation

2016
Exposure of metals to irradiation results in an increase in the yield strength over a wide temperature range and is most pronounced at T irr < 0.3T m. Typical engineering stress–stress curves for fcc and bcc steels are shown in Fig. 12.1. Note that for both crystal structures, in addition to increasing the yield strength, the ductility (measured either
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Effect of irradiation with electrons on the hardenability of steel

Metal Science and Heat Treatment, 1972
1. The hardenability of steel after irradiation with relativistic electrons at austenite equilibrium temperatures and in the process of cooling increases substantially. 2. The effect obtained indicates the formation of fairly stable pairs of vacancies and carbon atoms from excess vacancies of radiation origin and interstitial atoms of ...
M. A. Krishtal, L. I. Ivanov, V. V. Ryazantseva   +2 more
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Hardening of copper irradiated at −195°C

Acta Metallurgica, 1961
Copper single crystals harden during neutron irradiation at −195°C and it is known that some recovery of this hardening (~ 10 per cent) occurs on annealing in the temperature range 0°–20°C, suggesting that the defects which become mobile at this temperature annihilate part of the damage responsible for the hardening.
M.J. Makin, S.A. Manthorpe
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Surface hardening by proton irradiation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1993
Abstract Ion implantation induced changes in the microhardness of semiconductor materials are systematically studied in AIII BV, AIIBVI and elemental semiconductors. The influences of different types of radiation defects and of implanted atoms are separately considered.
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Irradiation hardening of V–4Cr–4Ti

Journal of Nuclear Materials, 1999
Abstract In the framework of the European Long Term Fusion Technology Program, Advanced Materials Field, ECN has been working on the assessment of low temperature irradiation hardening and embrittlement of vanadium alloys, as being developed for fusion application.
E.V van Osch, M.I de Vries
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Irradiation hardening of Fe-Cr alloys

Journal of Nuclear Materials, 1983
Abstract The mechanism of irradiation hardening of Fe and Fe-Cr simple α-phase alloys was studied by means of tensile tests. Some commercial ferritic and martensitic steels were also examined. The irradiation hardening of Fe was explained by the presence of small dislocation loops formed at the sites of cascade damage collapse, while that of Fe-Cr ...
Katsuaki Suganuma, Hideo Kayano
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