| Title | Thermomechanical Testing and Microstructural Development of Class L Steel Wheel Alloy |
|---|---|
| Record ID | 49364 |
| Personal Name Creator |
Pelloux, R. M.; Grundy, D. C. |
| Source | 42p, in various pagings |
| Corporate Creator | Massachusetts Institute of Technology; Oregon Graduate Institute of Science and Technology |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19940301 |
| Language | English |
| Abstract | Macrostructure, microstructure, and quantitative metallographic analysis is conducted on Association of American Railroads Class L wheel steel specimens tested in a Gleeble 1500 under combined mechanical compression and resistance heating to temperatures above and below the austenite transformation temperature. The mechanical loading shears the as-received ferrite-pearlite microstructure. A partially or fully recrystallized microstructure is observed in the sheared regions. The recrystallized microstructure contains fine globular carbides typical of a spheroidized steel and is produced at temperatures below the austenite transformation temperature. Trends are found toward increasing recrystallized fraction with increasing temperature and decreasing fraction with increasing compression above 4.5% strain. |
| Rosap ID | dot:10817 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10817 |
| TRT Terms | Metallurgy; Temperature; Wheels; Compression; Mechanical loads; Microstructure; Railroad cars; Steel |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - SAFETY AND SECURITY - Rail Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY |
| Geographical Coverage |
United States |
| Contract Number | R3026/RR328 |
| Report Number | DOT-VNTSC-FRA-94-3; DOT/FRA/ORD-94/01 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/49000/49300/49364/DOT-TSC-FRA-94-3.pdf |
| Format | |
| Database | NTL Digital Repository |