| Title | Fatigue Crack Propagation in Rail Steels |
|---|---|
| Record ID | 50488 |
| Personal Name Creator |
Feddersen, C. E.; Buchheit, R. D.; Broek, D. |
| Source | 108p. in various pagings |
| Corporate Creator | Battelle Memorial Institute. Columbus Laboratories |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19770601 |
| Language | English |
| Abstract | In order to establish safe inspection periods of railroad rails, information on fatigue crack growth rates is required. These data should come from a sufficiently large sample of rails presently in service. The reported research consisted of the generation and analysis of fatigue crack growth data of 66 rail samples taken from existing track all over the United States. Additional information concerns mechanical properties, chemical composition, microstructure, and fractographic features. A statistical analysis was performed to evaluate possible correlations with fatigue crack growth properties and microstructural parameters. Weak correlations were found with carbon, manganese and oxygen content, and with the fraction of pearlite. A subsequent phase of this research program is discussed. |
| Rosap ID | dot:11873 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11873 |
| TRT Terms | Alloy steel; Cracking; Defects; Mechanical fatigue; Inspection; Railroad rails; Rail steel; Railroad tracks; Statistical analysis; Steel; Testing |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - SAFETY AND SECURITY - Vehicle Design; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY; NTL - SAFETY AND SECURITY - Rail Safety |
| Geographical Coverage |
United States |
| Report Number | DOT-TSC-FRA-77-3; FRA/ORD-77/14 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50400/50488/DOT-TSC-FRA-77-03.pdf |
| Format | |
| Database | NTL Digital Repository |