Electrical Processes in Engineering and Chemistry

Surface Engineering and Applied Electrochemistry

, Volume 45, Issue 2, pp 116-124

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

  • A. G. AnisovichAffiliated withState Scientific Institution, Physical-Technical Institute, National Academy of Sciences of Belarus Email author 
  • , I. N. RumyantsevaAffiliated withState Scientific Institution, Physical-Technical Institute, National Academy of Sciences of Belarus
  • , V. F. BevzaAffiliated withState Scientific Institution, Institute of Metal Technology, National Academy of Sciences of Belarus
  • , E. I. MarukovichAffiliated withState Scientific Institution, Institute of Metal Technology, National Academy of Sciences of Belarus
  • , V. V. AzharonokAffiliated withState Scientific Institution, Stepanov Institute of Physics, National Academy of Sciences of Belarus
  • , S. V. GoncharikAffiliated withState Scientific Institution, Stepanov Institute of Physics, National Academy of Sciences of Belarus

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.