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SM ISO690:2012 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 | ||||||
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Pag. 579-581 | ||||||
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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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