Abstract

The effect of dynamic hot compaction (DHC) and intensive plastic torsional deformation (IPTD) on the structure and properties fullerene-containing powdered compositions of Fe graphite and Fe cast iron has been investigated. It is found that sintering Fe graphite samples results in the synthesis of fullerenes in their surface layer and a fullerene-containing phase is observed in their body after DHC as well. DHC results in an increase in the wear resistance of the Fe graphite composition. It is shown that a 6.16 A line appears on diffractograms of all examined samples (both Fe graphite and Fe cast iron) as a result of IPTD. Scanning probe microscopy found that the elasticity modulus of samples of iron graphite increases from 50–58 to 67–91 GPa and local hardness increases from 10–19 to 137–155 GPa because of IPTD. The elasticity modulus of iron-pig-iron samples also increases from 63 GPa before IPTD to 55–109 GPa afterwards. A wide scatter in values of this index testifies to the inhomogeneity of the structure formed in the course of deformation.

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