, Volume 45, Issue 2, pp 116-124
Date: 27 May 2009

Structural changes in CЧ-25 cast iron in an amplitude-modulated high-frequency electromagnetic field

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

The high-frequency magnetic field influence on changes in the structure and properties of CЧ-25 cast iron obtained by the method of continuous-cycle freeze casting has been studied. It has been found that the structure effects of high-frequency magnetic-pulse action on cast iron are the “healing” of surface defects, perlite dispersion, a decrease in the ferrite content in the structure due to the ferrite-graphite complex transformation into perlite, coarsening and modification of the internal structure of graphite inclusions, and a change in the cementite morphology. The observed structural changes determine the decrease in hardness of automobile parts of the cylinder-piston block.

Original Russian Text © A.G. Anisovich, I.N. Rumyantseva, V.F. Bevza, E.I. Marukovich, V.V. Azharonok, S.V. Goncharik, 2009, published in Elektronnaya Obrabotka Materialov, 2009, No. 2, pp. 47–56.