ELEVATED-TEMPERATURE MECHANICAL BEHAVIOR OF A CARBON-MANGANESE PRESSURE VESSEL STEEL
The short-time effects of stress and temperature on the mechanical properties of a carbon-manganese pressure vessel steel were investigated using room- and elevated-temperature tensile tests and short-time creep-rupture tests. The tensile test results indicated that strain aging effects were not observed in the temperature range 1100 F to 1250 F. Analysis of the creep-rupture data, in the range 1150 F to 1250 F, by the Larson-Miller method using the procedures of Manson and Mendelson provided a value of 20.7 for the material constant, C. In the temperature and stress regime studied, a linear relationship was observed between log(stress) and log(time-to-rupture). Fractographic analyses revealed a common fracture mode in all specimens tested. The fracture mode is described as an intermediate type, containing features of both transgranular and intergranular fracture.
- Sponsored in part by Federal Railroad Administration, Washington, D.C. Pub. in Jnl. Eng. Mater. Technol. 99, n4 p359-365 Oct 77.
National Bureau of Standards14th Between E Street and Constitution Avenue, NW
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Federal Railroad Administration1200 New Jersey Avenue, SE
Washington, DC United States 20590
- Early, J G
- Publication Date: 1977
- Pagination: 7 p.
- TRT Terms: Alloy steel; Alloys; Carbon steel; Creep; Creep tests; Fatigue strength; Fracture mechanics; Fracture properties; High temperature; Manganese; Metallurgy; Pressure vessels; Railroad materials; Steel; Strength of materials; Tank cars; Tensile properties; Tension tests; Tests
- Old TRIS Terms: Creep rupture strength; Creep rupture tests; Manganese containing alloys; Tank car construction materials
- Subject Areas: Materials; Railroads;
- Accession Number: 00169198
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt.
- Files: NTIS, TRIS, USDOT
- Created Date: Jan 30 1978 12:00AM