NINTH PROGRESS REPORT OF THE SHELLY RAIL STUDIES AT THE UNIVERSITY OF ILLINOIS

Rolling-load and physical tests of heat-treated rails were continued on two specimens of 132-lb rails. Brinell hardness was increased from 269 to 360 by the heat treatment. Yield strength was increased 65 percent, tensile strength 31 percent, elongation 18 percent, reduction of area 100 percent, and endurance limit 40 percent. Cycles for failure of as-rolled rails averaged 1,257,000 while the heat-treated rails averaged 4,421,000 cycles before failure. Rolling-load tests were made on seven rails which were flame hardened different amounts on the rail treads. Four of these specimens failed by head and web separation cracks. The three specimens which failed by shelling averaged 1,448,000 cycles. Rolling-load and physical tests were made on two specimens of alloy rail steel. They ran eight million and five million cycles in the rolling-load tests.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Authors:
  • Cramer, R E
• Publication Date: 1951-2

Media Info

• Features: Photos; Tables;
• Pagination: p. 664-679
• Serial:
  • AREA BULLETIN
  • Volume: 52
  • Issue Number: 493
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Defects; Dynamic loads; Fabrication; Hardness; Metal heating; Railroad rails; Shelling (Metals); Technology
• Uncontrolled Terms: Heat treatment
• Geographic Terms: United States
• Old TRIS Terms: Shelling; Shelling (Rails)
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00040591
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM