Weld defect formation in rail thermite welds

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Volumn 220, Issue 4, 2006, Pages 373-384

  Chen, Y ^a,b   Lawrence, F V ^b   Barkan, C P L ^b   Dantzig, J A ^c  

^a ARGONNE NATIONAL LABORATORY   (United States)

^b UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN   (United States)

^c University of Illinois at Urbana Champaign   (United States)

Author keywords

Centre line defect; Microporosity; Rail thermite welding; Shrinkage cavity; Weld defect

Indexed keywords

DEFECT STRUCTURES; HEAT TRANSFER; HEAT TREATMENT; MICROPOROSITY; SHRINKAGE; THERMIT WELDING;

HEAT TRANSFER MODELS; HEAT TRANSFER SIMULATION; SHRINKAGE CAVITY; WELD DEFECTS;

RAILROADS;

EID: 34247119147     PISSN: 09544097     EISSN: None     Source Type: Journal    
DOI: 10.1243/0954409JRRT44     Document Type: Article

References (21)

1. Schroeder, L. C. and Poirier, D. R. The mechanical properties of thermite welds in premium alloy rails. Mater. Sci. Eng., 1984, 63, 1-21.
2. Jha, B. Thermite welding of rail steel. PhD Dissertation, Illinois Institute of Technology, 1989.
3. Nenad, I., Jovanovic, M. T., Todorovic, M., Trtanj, M., and Saponjic, P. Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails. Mater. Charact., 1999, 43, 243.
4. Schroeder, L. C. and Poirier, D. R. Thermite Rail welds, the process, mechanical and metallurgical properties, and possible improvements. Proceedings of Railroad Rail Welding, Memphis, 29-30 November 1983, p. 21.
5. Fry, G. T. A modified thermite rail welding procedure. MS Thesis, University of Illinois at Urbana-Champaign, 1992.
6. Gianetto, J. A., Es-Sadiqi, E., Sawley, K. J., Joos, M. A., and Blowatt, D. W. Influence of EMS on rail thermite weld structure and properties. Proceedings of the 39th mechanical working and steel processing conference-international symposium on rail steels, Indianapolis, IN, 21 October 1997, p. 1091.
7. Cyre, J. P. Concepts for improving the fatigue resistance of thermite rail welds. MS Thesis, University of Illinois at Urbana-Champaign, 2002.
8. Ross, E. T. A statistical study of improved thermite rail welds. MS Thesis, University of Illinois at Urbana-Champaign, 2004.
9. Oderio, J. A. A metallurgical study of the detail fracture in thermite-welded railroad rails. MS Thesis, University of Illinois at Urbana-Champaign, 1992.
10. Fry, G. T., Lawrence, F. V., and Robinson, A. R. Model for fatigue defect nucleation in thermite rail welds. Fatigue Fract. Eng. Mater. Struct., 1996, 19(6) 655.
11. Chen, Y., Lawrence, F. V., Barkan, C. P. L., and Dantzig, J. A. Weld defect formation in rail thermite welds. Proc. IMechE, Part F: J. Rail and Rapid Transit, 2006, 220(F4), 373-384. (This paper.)
12. Kubo, K. and Pehlke, R. D. Mathematical modeling of porosity formation in solidification. Metall. Trans. B, 1985, 16B, 359.
13. Overfelt, T. Manufacturing significance of solidification modeling. J. Metals, 1992, 44(6), 17.
14. Pellini, W. S. Factors which determine riser adequacy and feeding range. Trans. Am. Foundry Soc., 1953, 61, 61.
15. Niyama, E., Uchida, T., Morikawa, M., and Saito, S. Predicting shrinkage in large steel castings from temperature gradient calculations. AFS Int. Casting Metals J., 1981, 6, 16.
16. Sigworth, G. K. and Wang, C. Mechanisms of porosity formation during solidification: a theoretical analysis. Metall. Trans. B, 1993, 24B, 349.
17. Niyama, E., Uchida, T., Morikawa, M., and Saito, S. Method of shrinkage prediction and its application to steel casting practice. AFS Int. Casting Metals J., 1982, 7(9), 52.
18. Poirier, D. R., Yeum, K., and Maples, A. L. A thermodynamic prediction for microporosity formation in aluminum-rich Al-Cu alloys. Metall. Trans. A, 1987, 18A, 1979.
19. Kurz, W. and Fisher, D. J. Fundamentals of solidification, 1986 (Trans Tech Publications, Switzerland).
20. Carpenter, G. F., Steele, R. K., and Markase, M. J. Effect of inclusion content on fatigue performance of rail steels. Rail Steels Symposium Proceedings, Montreal, Quebec, Canada, 26-27 October 1992, pp. 49-56.
21. Barsom, J. M. and Imhof, E. J. Fatigue and fracture behavior of carbon-steel rails. Rail steels-developments, processing and use (Eds D. H. Stone and G. G. Knupp), 1978, p. 387 (American Society for Testing and Materials, Philadelphia) ASTM STP 644.