DEVELOPMENT OF A SCHEDULE FOR THE HEAT TREATMENT OF HIGH-STRENGTH RAILS

Results of laboratory trials to determine an optimum method for heat treatment of high-strength rails produced by the Nizhnii-Tagil' and Azovstal' works are reported. The mechanical properties of rail-steel between specimens and full-section rails were compared after normal treatment, isothermal quenching, a process described as HTMT and one described as HTMT followed by isothermal decomposition of the austenite. Difficulties in obtaining a combination of high contact fatigue strength and resistance to brittle fracture (impact strength and endurance under fatigue loading after initiation of a crack) through the use of conventional methods are discussed. A schedule incorporating differential tempering, which comes highly recommended for the purpose of compliance with current practices and available equipment, is described.

• Corporate Authors:

  Metals Society

  1 Carlton House Terrace
  London SW1Y 5DB,   England 
• Authors:
  • Rauzin, Y R
  • Shur, E A
  • Zonov, P N
  • Velikanov, A V
• Publication Date: 1974-12

Media Info

• Features: Figures; References; Tables;
• Pagination: 5 p.
• Serial:
  • Stal in English
  • Issue Number: 12
  • Publisher: Iron and Steel Institute

Subject/Index Terms

• TRT Terms: Cracking; Fatigue (Mechanics); Fatigue cracking; Fatigue strength; Fracture mechanics; Heat treated rail; High strength steel; Loads; Rail steel; Steel plants
• Old TRIS Terms: Fatigue loading; Rail metallurgy; Rail steel metallurgy
• Subject Areas: Railroads; Terminals and Facilities;

Filing Info

• Accession Number: 00173052
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM