METALLOGRAPHIC EXAMINATION OF CRACKED WHEEL FLANGES FROM FAST
A major cause for condemnation of wheels at the Facility for Accelerated Service Testing has been flange cracking which developed in both cast and forged wheels with a higher incidence occuring in untreated and One-Wear type wheels and comparatively less in rim treated and Two-Wear types. The cracks nucleate beneath the surface in a region which has been plastically deformed and work hardened in the course of deformation. The phenomenon is identified as rolling contact fatigue similar to tread shelling. Wheel rail contact should be minimized near the flange apex.
- Supported in cooperation with the Association of American Railroads, Federal Railroad Administration and Railway Wheel Association. Sixth International Wheelset Congress, October 22-26, 1978, Colorado Springs, Colorado.
American Iron and Steel Institute230 North Michigan Avenue
Chicago, IL United States 60601
- MARICH, S
- Stone, D H
- Publication Date: 1978-10
- Features: Figures; Tables;
- Pagination: 17 p.
- TRT Terms: Construction scheduling; Cracking; Defects; Flanges; Rail (Railroads); Rolling contact; Service life; Wheels
- Identifier Terms: Transportation Technology Center
- Uncontrolled Terms: Crack propagation
- Old TRIS Terms: Fast track; Wheel defects; Wheel flange
- Subject Areas: Design; Railroads; Vehicles and Equipment;
- Accession Number: 00184168
- Record Type: Publication
- Source Agency: American Iron and Steel Institute
- Report/Paper Numbers: Volume 2 Tech Paper
- Files: TRIS
- Created Date: Dec 29 1978 12:00AM