EFFECT OF OVERHEATING ON THE FATIGUE RESISTANCE OF PLAIN BEARING AXLE JOURNALS

A laboratory test of axles was authorized in which axle journals would be overheated under load in the laboratory and subsequently fatigue tested to determine the effect of overheating. It was decided to carefully evaluate all axles which had failed in the test to determine whether or not copper penetration was present. Tentative conclusions based on the data obtained to date are: 1. Damage to the steel structure of axles due to severe journal overheating can occur without being caused by copper penetration. 2. No traces of copper penetration have been found in the overheated specimens.

• Corporate Authors:

  Association of American Railroads

  3140 South Federal Street
  Chicago, IL  United States  60605
• Publication Date: 1952

Media Info

• Pagination: 1 p.

Subject/Index Terms

• TRT Terms: Axles; Contaminants; Fatigue (Mechanics); Fatigue (Physiological condition); Freight cars; Journal boxes; Railroad cars; Stresses; Technology; Thermal stresses
• Uncontrolled Terms: Contamination
• Geographic Terms: United States
• Old TRIS Terms: Axle fatigue; Hot boxes
• Subject Areas: Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00040359
• Record Type: Publication
• Report/Paper Numbers: AAR MR-212 Prog Rpt
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM