Springer Online Journal Archives 1860-2000
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Abstract A new technique utilizing a high-power-density pulsed ion beam for modification of material surfaces is presented. The power density of the pulsed ion beam ranges between 104 and 107 wcm−2, the kinetic energy is 1 to 5 KeV, the deposition energy is of the order of 1 to 10Jcm−2 and the pulsed duration is about 60μsec. The post-treatment samples were analysed using Auger electron spectroscopy, scanning electron microscopy, X-ray diffractometry, and Vicker's microhardness tester. It is found that the concentration of the injected particles has a Gaussian distribution. The thermal zone induced by the fast heating-cooling process forms a white-bright layer, indicating that there are new carbides and nitrides produced in the surface layer, which increases the microhardness of the surface.
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