INFLUENCE OF CONTINUOUS CASTING OF RAIL STEEL ON THE PROPERTIES OF THE RAILS

It has been found previously that an improvement in rail steel quality can be obtained by melting in basic oxygen furnaces and continous casting, which reduces the structural and chemical heterogeneity occurring during solidification in conventional casting. A study was made of the macro- and microstructure in rails rolled from continuously cast 290 x 320-mm blooms and from mould-cast ingots. Photomacrographs taken after deep etching of specimens of Type R-50 and R-43 rails show centerline porosity in the former and no centerline porosity in the latter. The microstructure of the rails rolled from continuously cast blooms consisted of fine lamellar pearlite and tempered martensite; the microstructure of rails rolled from ingots was composed of coarse lamellar pearlite and tempered martensite. Numerical values indicating the fineness of the tempered martensite are presented.

• Corporate Authors:

  Metals Society

  1 Carlton House Terrace
  London SW1Y 5DB,   England 
• Authors:
  • Monich, O D
  • Paisov IV
  • Polyakov, V V
  • Nekhaev, V P
  • Dolgunov, N V
• Publication Date: 1974-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 414-416
• Serial:
  • Steel in the USSR
  • Volume: 4
  • Issue Number: 5

Subject/Index Terms

• TRT Terms: Rail (Railroads); Rail steel; Steel plants; Structural tests
• Old TRIS Terms: Rail metallurgy; Rail steel metallurgy; Rail technology; Rail tests
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 00172586
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM