EFFECT OF RESIDUAL STRESSES IN HARDENED RAILS ON THE FORMATION AND PROPAGATION OF STRESS FISSURES DUE TO CYCLIC STRAINS

VLIJANIE OSTATOCNYH NAPRJAZENIJ V ZAKALENNYH REL'SAH VOZNIKNOVENIE I RASPROSTRANENIE USTALOSTNYH TRESCIN PRI CIKLICESKOM IZGIBE

The authors have reached the following conclusions: The railhead, as a result of heat treatment or cold straightening, can develop a considerable drop in the stress limit, a drop in the number of cycles completed before stress fissures occur, a drop in the number of cycles completed during the stress fissure propagation period, a reduction in the critical size of each stress fissure, or a drop in the curability of hardened rail, 2) the residual compression stresses which occur in the rail head accentuate the above characteristics.

• Authors:
  • Sur, E A
  • Konjuhov, A D
• Publication Date: 1973

Language

• Russian

Media Info

• Features: References; Tables;
• Pagination: p. 29-37
• Serial:
  • Trudy CNII MPS: Ostat naprja i Proc Zelez relsov
  • Volume: 491

Subject/Index Terms

• TRT Terms: Cracking; Fatigue cracking; Metal heating; Rail steel; Railhead; Railroad rails; Stresses
• Uncontrolled Terms: Heat treatment
• Old TRIS Terms: Rail fissures; Rail steel metallurgy; Rail stress
• Subject Areas: Construction; Railroads;

Filing Info

• Accession Number: 00129787
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Mar 10 1976 12:00AM