HIGH-DOSE AND INTENSE IMPLANTATION OF THE MULTIPLY-CHARGED IONS AL-IRON(N, TI+N AND C+N INTO ALFA)

Authors
POGREBNJAK AD BAKHAREV OG MARTYNENKO VA RUDENKO VA BRUSA R ZECCA A OECHSNER R RYSSEL H TIKHOMIROV IA RYABCHIKOV AI
Citation
Ad. Pogrebnjak et al., HIGH-DOSE AND INTENSE IMPLANTATION OF THE MULTIPLY-CHARGED IONS AL-IRON(N, TI+N AND C+N INTO ALFA), Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 94(1-2), 1994, pp. 81-90
Citations number
37
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
94
Issue
1-2
Year of publication
1994
Pages
81 - 90
Database
ISI
SICI code
0168-583X(1994)94:1-2<81:HAIIOT>2.0.ZU;2-M
Abstract
The paper presents experimental results on the modification process in alpha-Fe surface layers after high-dose implantation. Slow positron b eam, conversion Mossbauer spectroscopy, resonance nuclear reactions, m easurements of microhardness, non-lubricated friction wear and frictio n coefficient in wear have been used. The relation of physico-chemical changes and defect structure to changes in operation characteristics of the modified and implanted alpha-Fe layer has been shown. Ti cluste rs and small dispersion carbides are formed in the surface of alpha-Fe after implantation, which increases microhardness and decreases the w ear and friction coefficient by a factor of 2.5. Ordered phase Fe3Al, which undergoes partial amorphization with increasing dose is produced as a result of Al implantation. This also decreases wear and increase s microhardness. The implantation of C ions did not show decreased wea r even in the case of 8 X 10(17) cm-2 doses, though increased microhar dness was found.