| Autor: |
Jarig Politiek, H. Dimigen, E. Gerritsen, Andreas Kluge, Heiner Ryssel, R. Oechsner, K. Kobs, C.J.M. Denissen |
| Rok vydání: |
1991 |
| Předmět: |
|
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :746-750 |
| ISSN: |
0168-583X |
| DOI: |
10.1016/0168-583x(91)95695-a |
| Popis: |
AISI 52100 steel was implanted at 100 keV with doses in the range 4 × 1017−3 × 1018C+/cm2. Tribological tests were carried out on an oscillating ball-on-disk tester. The friction coefficient of the steel implanted with a dose of 3 × 1018/cm2 was reduced by a factor of 3 for far more than 6 h. The wear behaviour of the steel shows normal wear up to a depth of 0.15 μm, being the range of the implanted carbon ions. Thereafter, a very low wear rate is obtained for more than 6 h (1.5 × 105 cycles). The ball shows also no wear during this period. The steel was also studied by Mossbauer spectroscopy for various doses. At the lowest dose, ϵ-carbide is formed. For the higher doses the amount of ϵ-carbide increases, and the composition approaches that of ϵ-Fe2.2C. The ϵ-carbide was also found by glancing-angle X-ray diffraction. Fe and C profiles were obtained from the Rutherford backscattering spectra. It was found that besides the ϵ-carbide a large amount of pure carbon is present in the implanted layer. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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