The effect of neutron irradiation on the impact toughness of austenitic stainless steel in ultrafine-grained state
Source abstract
Abstract
Abstract Austenitic stainless steel in conventional and ultrafine-grained states is studied by impact testing in an unirradiated condition and after neutron irradiation to 12 dpa at 350°C. We show that grain refinement provided higher resistance of the steel to the onset of evolving macrodefects (such as cracks) in irradiated state. Impact toughness of the coarse-grained steel notably degraded after irradiation, while the ultrafine-grained steel demonstrated better resistance of impact toughness to irradiation effect. This finding highlights the promising potential of ultrafine-grained steels to be used as advanced radiation resistant materials with enhanced mechanical performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fusion materials and technologies · Microstructure and mechanical properties · Nuclear Materials and Properties
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References (15)
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1. Materials challenges in nuclear energy10.1016/j.actamat.2012.11.004 ↗
2. Nanocrystalline materials10.1016/0079-6425(89)90001-7 ↗
3. Bulk nanostructured materials from severe plastic deformation10.1016/S0079-6425(99)00007-9 ↗
4. Mechanical behavior of nanocrystalline metals and alloys10.1016/j.actamat.2003.08.032 ↗
5. Radiation damage tolerant nanomaterials10.1016/j.mattod.2013.10.019 ↗
6. Irradiation effects on nanocrystalline materials10.1007/s11706-013-0199-3 ↗
7. Radiation damage in nanostructured materials10.1016/j.pmatsci.2018.03.002 ↗
8. Radiation tolerance of ultrafine-grained materials fabricated by severe plastic deformation10.2320/matertrans.MF201931 ↗
9. Effect of neutron irradiation on microstructure and properties of austenitic AISI 321 steel subjected to equal-channel angular pressing
10. Stability of the structure and properties of an ultrafine-grained Cr-Ni steel irradiated with neutrons in nuclear reactor core conditions10.1016/j.msea.2017.11.096 ↗
11. Impact of the nanostructuration on the corrosion resistance and hardness of irradiated 316 austenitic stainless steels10.1016/j.apsusc.2016.09.110 ↗
12. Prolongation of the BOR-60 reactor operation10.1016/j.net.2015.03.002 ↗
13. Effect of self-ion irradiation on the microstructural changes of alloy EK-181 in annealed and severely deformed conditions10.1016/j.jnucmat.2017.02.006 ↗
14. Formation of fully austenitic ultrafine-grained high strength state in metastable Cr-Ni-Ti stainless steel by severe plastic deformation10.1016/j.matlet.2015.12.094 ↗
15. Review on superior strength and enhanced ductility of metallic nanomaterials10.1016/j.pmatsci.2018.02.002 ↗