Structure Phase Transformations in Electrospark Iron–Carbon Surfaces at Different Heating Temperatures
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MIHAILIUC, Alexei, VOLODINA, Galina. Structure Phase Transformations in Electrospark Iron–Carbon Surfaces at Different Heating Temperatures . In: Surface Engineering and Applied Electrochemistry, 2010, nr. 6(46), pp. 579-581. ISSN 1068-3755.
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Surface Engineering and Applied Electrochemistry
Numărul 6(46) / 2010 / ISSN 1068-3755 /ISSNe 1934-8002

Structure Phase Transformations in Electrospark Iron–Carbon Surfaces at Different Heating Temperatures

Pag. 579-581

Mihailiuc Alexei, Volodina Galina
 
Institutul de Fizică Aplicată al AŞM
 
 
Disponibil în IBN: 30 noiembrie 2013


Rezumat

The results of investigation of the surface structure base transformation of iron specimens subjected to carbonization by the electrospark method and heating in the temperature range of 20–800°C are given. It is known that, after electrospark alloying with graphite, a surface layer consisting of mainly austenite and cementite forms with a carbon content in γ Fe. The quantity of the austenite reduces with heating, and, at 300°C, it fully turns into a ferrite cementite mixture (perlite). The heating of the specimens reduces the value of the microstresses, and the diffraction lines narrow down coming nearer to the annealed armco iron values.

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