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Structure and Microhardness of Steel Samples after Pulse Plasma Flows Processing
Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
- 1 Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
- 2 Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
- 3 Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
- 4 Department of Plasma Physics, Science Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
Materials Sciences and Applications·Volume 04 (2013)·Pages 35–41·Published 18 July 2013·DOI10.4236/msa.2013.47A2006
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Abstract
The phase structure of surfaces of steel samples, modified by pulse plasma processing, was analyzed using XRD and metallographic methods. It has been shown, that after pulse plasma processing under different conditions a modified structure consisting of three new phases, including austenite, iron nitride and carbide, is formed. The dependence of phase transition and microhardness on plasma flow parameters has been studied. A sharp decrease in the dimensions of ferrite crystallites after the impact of plasma flow is observed. The main purpose of hardening of common steel samples is formation of nano-dimension ferrite with oriented iron carbide on grains.
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