摘要
Ta and C ions extracted from a metal vapor vacuum arc ion source were implanted into H21 steel,with an implantation dose of 3×10^(17)cm^(-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.
作者
YANG Jian-hua
LIANG Hong
ZHANG Tong-he
SU Yi
ZHANG Tao
杨建华;梁宏;张通知;苏一;张涛(Department of Physics,Nantong Institute of Technology,Nantong 226007;Laboratory of Radiation Beam and Materials Engineering,Beijing Normal Univemity,Beijing 100875;Department of Physics,Tianjin Normal University,Tianjin 300074)
基金
Supported by the Natural Science Foundation of Educational Committee of Jiangsu Province under Grant No.95074
the National Natural Science Foundation of China under Grant No.59671051.
