FATIGUE STRENGTH OF NORMALIZED AND TEMPERED VERSUS AS-FORGED FULL SIZE RAILROAD CAR AXLES

Rotating cantilever fatigue tests were made on 48 full size railroad car axles to determine the fatigue strength of the axle wheel seat on which is pressed-on. Plain carbon steel of 0.39 to 0.53 per cent carbon content in both the as-forged and normalized and tempered condition was investigated. As-forged axles had 1/3 greater fatigue resistance in the wheel seat to the initiation of fatigue cracks than normalized and tempered axles of practically same carbon content. Of two groups of as-forged axles the one having about 10 points higher carbon showed 1/3 greater fatigue resistance in the wheel seat to the initiation of fatigue cracks than the lower carbon content axles.

• Corporate Authors:

  American Society for Metals

  Metals Park, OH  United States  44073
• Authors:
  • Horger, O J
  • Buckwalter, T V
• Publication Date: 1943-9

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 559-581

Subject/Index Terms

• TRT Terms: Axles; Cracking; Fatigue (Mechanics); Fatigue (Physiological condition); Metal heating; Technology
• Uncontrolled Terms: Heat treatment
• Geographic Terms: United States
• Old TRIS Terms: Axle fatigue
• Subject Areas: Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00040349
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM