Certain features of high-dose and intensive implantation of Al ions in iron

Autor:	R Sandrik, O.G. Bakharev, Yu.V. Tsvintarnaya, N.A Pogrebnjak, Alexander D. Pogrebnjak, V.T Shablja, Antonio Zecca
Rok vydání:	2000
Předmět:	Physics chemistry Aluminium Vacancy defect Phase (matter) Analytical chemistry General Physics and Astronomy chemistry.chemical_element Microbeam Surface layer Dislocation Carbide Ion
Zdroj:	Physics Letters A. 265:225-232
ISSN:	0375-9601
DOI:	10.1016/s0375-9601(99)00838-5
Popis:	Using a proton microbeam PIXE and RBS, a formation of local surface segregations of aluminum in an iron layer has been found, for the first time, at an initial stage of high-dose intensive implantation (from 8×1016 to ×1017 cm−2). Using a slow positron beam, a profile of vacancy defects, which depth is comparable to a depth profile of Al ions implanted into iron with 5×1017 cm−2 has been measured. Complex carbides (Fe3Al)C and Fe3C have been found in a near surface layer (TEM measurements) as well as segregations of an ordered phase Fe3Al (which with a dose increased are partially amorphized). In addition, high dislocation density of 1.2×1010 cm−2 has been found in the near surface layer, and fields of elastic stresses are formed, which results in the increased friction wear resistance and microhardness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3f2d7f492fbd42749fd9d077a0966947 https://doi.org/10.1016/s0375-9601(99)00838-5 Zobrazit plný text záznamu Full Text from ScienceDirect