High Energy Proton Irradiation of Pure Titanium

Autor:	Teresa Leguey, Nadine Baluc, Claude Bailat, M. Victoria
Přispěvatelé:	Lucas, G. E., Snead, L., Kirk, M.A. Jr., Elliman, R. G.
Rok vydání:	2000
Předmět:	Materials science chemistry Transmission electron microscopy Ultimate tensile strength Hardening (metallurgy) chemistry.chemical_element Irradiation Crystallite Deformation (engineering) Dislocation Composite material Titanium
Zdroj:	MRS Proceedings. 650
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-650-r3.1
Popis:	Polycrystalline specimens of hcp pure titanium have been irradiated at 300-320 K with 590 MeV protons to doses ranging between 10-3 and 3×10-2 dpa. Combination of tensile deformation experiments and transmission electron microscopy observations revealed that irradiation produces slight hardening of the material, related to the irradiation-induced formation of defect clusters, but not significant loss of ductility. Plastic deformation of irradiated titanium is homogeneous. It occurs via propagation of dislocations through a cloud of defect clusters, leading to their annihilation and the formation of a cellular dislocation structure together with twins. This mechanical behavior is similar to what was previously observed for pure fcc metals, the formation of twins being however intrinsic to deformation of hcp titanium.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59cd033b0cdc170e7f462b87382ac9a7 https://doi.org/10.1557/proc-650-r3.1 Zobrazit plný text záznamu Full text from SpringerLink