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Improvement of Friction and Wear Resistance for Ta or Ta+C Implanted H21 Steel |
| YANG Jian-hua1,2;LIANG Hong2;ZHANG Tong-he2;SU Yi3;ZHANG Tao2 |
| 1Department of Physics, Nantong Institute of Technology, Nantong 226007
2Laboratory of Radiation Beam and Materials Engineering, Beijing Normal Univemity, Beijing 100875
3Department of Physics, Tianjin Normal University, Tianjin 300074
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| Cite this article: |
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YANG Jian-hua, LIANG Hong, ZHANG Tong-he et al 1997 Chin. Phys. Lett. 14 865-868 |
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Abstract Ta and C ions extracted from a metal vapor vacuum arc ion source were implanted into H21 steel, with an implantation dose of 3 x 1017cm-2, extraction acceleration 42kV, and average ion beam flux about 40μA.cm-2. Rutherford backscattering spectrum was used to measure the surface composition after Ta or Ta+C implantation. Observation of phase induced by Ta and C implantation was carried out by x-ray diffraction analysis. Experimental results showed that the wear rate of the implanted layer dropped 30% for Ta ion implantation and by a factor of 2.5 for Ta+C dual ion implantation. Thus Ta+C dual ion implantation was found to significantly reduce the friction coefficient of H21 steel. The wear mechanisms of the implanted layer were discussed.
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| Keywords:
61.72.Ww
62.20.-x
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Published: 01 November 1997
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