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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
Improvement of wear and hardness of steel by nitrogen implantation
Vacuum, Volume 77, No. 1, Year 2004
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Description
This paper reports a study of the influence of atomic nitrogen implantation on the improvement of hardness and wear of AISI 8642 steel. The hardness and wear tests were carried out over the dose range 1017 -7 × 1017 ions/cm2 and energy 200 keV. Characterization of the surface and depth profiling of the implanted samples was performed using RBS and XRD techniques. Tribological tests for measuring friction and wear were made on a pin-on-disk stand with different loads for implanted and non-implanted samples. Hardness was measured with a Vickers diamond square-faced pyramid indenter. Nitrogen implantation of steel increased the hardness by about 150% in comparison to the non-implanted samples. The influence of a 'long-range effect' established beyond the implanted zone during the ion implantation process on the increase of hardness was discussed. No improvement of the friction coefficient was observed in the steel samples due to nitrogen implantation. On the other hand, the wear at a dose 7 × 1017 ions/cm2 decreased by a factor of about 20 times compared with the non-implanted steel. © 2004 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Youssef, A. A.
Egypt, Cairo
Nuclear Research Center
Budzynski, P.
Poland, Lublin
Politechnika Lubelska
Filiks, J.
Poland, Lublin
Uniwersytet Marii Curie-sklodowskiej w Lublinie
Kobzev, A. P.
Russian Federation, Dubna
Joint Institute for Nuclear Research, Dubna
Sielanko, J.
Poland, Lublin
Uniwersytet Marii Curie-sklodowskiej w Lublinie
Statistics
Citations: 35
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1016/j.vacuum.2004.07.069
ISSN:
0042207X