THE STRUCTURIZATION OF METALS SURFACE UNDER INFLUENCE OF PULSE PLASMA FLOWS
Abstract
The phase structure of a carbon steel surface, modified by plasma processing in various modes, by the X-ray analysis method is investigated. The modes of unitary and repeated influence by pulse flows of plasma are used. The influence of the sizes of dispersion coherent areas belonging to various phases, on microhardness of steel is investigated. Is shown, that the hardness of the processed steel increases proportionally to decreasing of the ferrite crystallite sizes at unitary influence. At repeated influence the greatest ratio of the modified phase contains in a sample subjected 10 multiple processing. As a result of updating structure of metal are formed crystalline with the sizes 10-20 nm.
References
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2. Tereshin V.I., Bandura A.N., Bovda A.M. etс. Pulsed plasma accelerators of different gas ions for surface modification // Review of scientific instruments. -2002.-V. 73(2).- P.831-833.
3. Kazeev M.N.. High power ablative pulsed plasma flows for technology applications // Applled Physics. -2000.- №4.- P. 5-10.
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5. Zhukeshov A.M., Gabdullina A. T., Amrenova A.U., Mukieva A.Z.. Changes of structure and surface properties of metal alloys after pulsed plasma processing // Изв. Вузов. Физика. -2006, №8, Приложение. -С. 361-362.
6. Ibraev B.M. Peculiarities of the generation of a plasmoid in a pulsed coaxial accelerator // J. of Engineering Thermophysics. -2005.-V. 12, N2. -P. 183-190.
7. Baimbetov F.B, Zhukeshov A.M., Amrenova A.U. Dynamics of Plasma Flow Formation in a Pulsed Accelerator Operating at a Constant Pressure // Technical Physics Letters. -2007.- V.33, №1, -P. 77–79.
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Published
2018-11-23
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Section
Plasma Physics
