Structures, phase composition and properties formation of chromomanganse cast irons in the cast and normalization stay

Authors

  • V. Z. Kutzova Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина, Ukraine
  • M. A. Kovzel Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина, Ukraine
  • A. V. Grebeneva Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина, Ukraine
  • I. V. Ratnicova Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина, Ukraine
  • P. U. Shvets Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина, Ukraine

Keywords:

chromomanganese cast iron, structure, properties, phase composition, normalization.

Abstract

Annotation. Purpose. Study the structure and properties of chromo-manganese cast iron in the cast and normalized state. Methodology. The  study  objects  in  this  work were  the  experimental-industrial  melting chromomanganese  cast iron samples Microstructure researches were carried out by using the optical microscope “Neophot-21”. Microhardness of phases and structural components was defined by using PМТ-3 by standard procedure. Phase composition of samples was studied by the diffractometer DRON–3М in FeК - radiation. Hardness of the investigated cast iron in the cast stay was determined by the Rockwell’s standard method. Findings.. Complex research were carried out and showed that the hardness  of  the  investigated chrom-manganese  cast  iron is  determined  by  the  content  of  carbon,  manganese  and  the number of carbide component. The maximum hardness in the cast and the normalized state characterized by alloys 2, 3, which allows to predict the increase of abrasive and shock-abrasive wear resistance in as cast and normalized condition. Originality. For chromomanganese  cast  irons the  interrelation  between  the  quantitative  ratio  of  primary  austenite dendrites and eutectic component in the cast and normalized state and properties (micromechanical characteristics and hardness). Practical  value.  Understanding  the  mechanisms  of  structural  changes  and  to  obtain  quantitative  laws describing the formation of structural components, enables you to control the structure and properties of the products from chromomanganese cast iron

Author Biographies

V. Z. Kutzova, Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина

Doct. Sc. (Tech.), Prof.

M. A. Kovzel, Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина

Cand. Sc. (Tech.), Ass. of Prof.

A. V. Grebeneva, Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина

Cand. Sc. (Tech.)

I. V. Ratnicova, Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина

S.R.F.

P. U. Shvets, Кафедра материаловедения, Национальная металлургическая академия Украини, пр. Гагарина, 4, г. Днепропетровск, Днепропетровская обл., Украина

Grad.

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Published

2016-03-22

Issue

Section

Proceedings in memory of Starodubov