SHELLY RAIL INVESTIGATION, ROLLING-LOAD AND SLOW-BEND TEST RESULTS
Two methods presently employed for improving shelling resistance is the addition of alloying elements and the heat treating of rail. The rolling-load tests in a cradle-type machine are designed to evaluate these methods of improving the resistance to shelling. Rolling-load test results obtained from these cradle-type machines for the period between October 1, 1965, and October 1, 1966, are shown. The S-13 series were initiated to compare the effects of welding prior to flame hardening and flame hardening prior to welding. The electric-flash butt welds were made from secondhand 132-lb HF rail and flame hardened by the Hammon process. Specimens S-13A and S-13C failed after being subjected to 389,800 and 656,900 cycles, respectively. As a result of this performance, rolling-load tests were conducted on welded joints made from 132-lb HF secondhand rail having no flame hardening applied. These joints, S-13E and S-13J, shelled after being subjected to 1,088,000 and 1,163,000 cycles, respectively. Rails flame hardened by the Linde process developed shells after being subjected to 1,254,400 and 844,900 cycles in the cradle-type rolling-load machine. During this period there were no slow-bend tests.
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Corporate Authors:
American Railway Engineering Association
59 East Van Buren Street
Chicago, IL United States 60605 - Publication Date: 1967-2
Media Info
- Features: Figures; Tables;
- Pagination: p. 477-487
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Serial:
- AREA BULLETIN
- Volume: 68
- Publisher: American Railway Engineering Association
Subject/Index Terms
- TRT Terms: Concrete hardening; Defects; Dynamic loads; Failure; Hardness; Rail (Railroads); Rail joints; Shelling (Metals); Technology; Welded rail; Welding
- Geographic Terms: United States
- Old TRIS Terms: Rail failure; Rail welding; Shelling; Shelling (Rails)
- Subject Areas: Materials; Railroads;
Filing Info
- Accession Number: 00040432
- Record Type: Publication
- Report/Paper Numbers: Bulletin 605
- Files: TRIS
- Created Date: Jan 22 1976 12:00AM