THE COMPOSITION OF STEEL FOR HIGH STRENGTH RAILS

O SOSTAVE STALI DLYA VYSOKOPROCHNYKH REL'SOV

The authors studied three groups of steels to determine whether rail steel possessing high carbon content and contact-fatigue strength together with sufficient toughness and plasticity could be produced, and whether it is possible to obtain sufficient toughness when carbon content is decreased and contact-fatigue strength is increased by alloying the steel. Illustrations are provided which show the effect of carbon on the limit of endurance during contact loading of carbon steel and complexly alloyed steels. Data are tabulated which provide some indication of toughness failure. Experimental rails of various chemical compositions were fabricated and their hardenability, during the volume hardening in oil was determined. It was concluded that alloying of steel, within the limits studied, when carbon content is reduced cannot increase contact-fatigue strength of rails to the required level. Alloying of steel by using the conventional methods of hardening (volume, stepwise, isothermic) does not compensate for the reduction in cohesive strength and viability of rails which are observed with increases in carbon content, and does not produce the combination of mechanical properties that assure the necessary rail design strength.

• Corporate Authors:

  All-Union Scientific Res Inst of Railroad Transp

  3-aya Mytishchinskaya Ulitsa 10
  Moscow I-164,   USSR 
• Authors:
  • Safonova, K E
  • Velikanov, A V
  • Vinokurov, I Y
  • Rabinovich, D M
  • Ravzin, Y R
• Publication Date: 1974

Language

• Russian

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 45-49
• Serial:
  • Vestnik VNIIZT
  • Issue Number: 1
  • Publisher: All-Union Scientific Res Inst of Railroad Transp

Subject/Index Terms

• TRT Terms: Alloy steel; Carbon steel; Concrete hardening; Fatigue strength; Fracture mechanics; Hardness; Metallurgy; Rail steel; Railroad rails; Service life; Steel
• Old TRIS Terms: Rail life; Rail steel metallurgy; Steel metallurgy
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00172924
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM