Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails
Апстракт
This paper describes a comparative study of the hardness characteristics, mechanical properties, microstructures, and fracture mechanisms of the thermite welded rail steel joints before and after heat treatment. It has been found that heat treatment of the welded joint improves the mechanical properties (UTS and elongation), and changes the fracture mechanism from brittle to ductile. Improved strength and elongation are attributed to the finer ferrite-pearlite microstructure and the different fracture mechanism. Microporosity and numerous inclusions were seen on the fracture surface of the welded joint. The chemical composition of the inclusions indicated that the molten thermite mixture had reacted with the magnesite lining of the ladle and the feeder. (C) Elsevier Science Inc., 1999. All rights reserved.
Извор:
Materials Characterization, 1999, 43, 4, 243-250
DOI: 10.1016/S1044-5803(99)00006-6
ISSN: 1044-5803
WoS: 000084167600004
Scopus: 2-s2.0-0033324111
Колекције
Институција/група
VinčaTY - JOUR AU - Ilić, N. AU - Jovanović, Milan T. AU - Todorović, M AU - Trtanj, M AU - Šaponjić, Petar PY - 1999 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2303 AB - This paper describes a comparative study of the hardness characteristics, mechanical properties, microstructures, and fracture mechanisms of the thermite welded rail steel joints before and after heat treatment. It has been found that heat treatment of the welded joint improves the mechanical properties (UTS and elongation), and changes the fracture mechanism from brittle to ductile. Improved strength and elongation are attributed to the finer ferrite-pearlite microstructure and the different fracture mechanism. Microporosity and numerous inclusions were seen on the fracture surface of the welded joint. The chemical composition of the inclusions indicated that the molten thermite mixture had reacted with the magnesite lining of the ladle and the feeder. (C) Elsevier Science Inc., 1999. All rights reserved. T2 - Materials Characterization T1 - Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails VL - 43 IS - 4 SP - 243 EP - 250 DO - 10.1016/S1044-5803(99)00006-6 ER -
@article{ author = "Ilić, N. and Jovanović, Milan T. and Todorović, M and Trtanj, M and Šaponjić, Petar", year = "1999", abstract = "This paper describes a comparative study of the hardness characteristics, mechanical properties, microstructures, and fracture mechanisms of the thermite welded rail steel joints before and after heat treatment. It has been found that heat treatment of the welded joint improves the mechanical properties (UTS and elongation), and changes the fracture mechanism from brittle to ductile. Improved strength and elongation are attributed to the finer ferrite-pearlite microstructure and the different fracture mechanism. Microporosity and numerous inclusions were seen on the fracture surface of the welded joint. The chemical composition of the inclusions indicated that the molten thermite mixture had reacted with the magnesite lining of the ladle and the feeder. (C) Elsevier Science Inc., 1999. All rights reserved.", journal = "Materials Characterization", title = "Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails", volume = "43", number = "4", pages = "243-250", doi = "10.1016/S1044-5803(99)00006-6" }
Ilić, N., Jovanović, M. T., Todorović, M., Trtanj, M.,& Šaponjić, P.. (1999). Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails. in Materials Characterization, 43(4), 243-250. https://doi.org/10.1016/S1044-5803(99)00006-6
Ilić N, Jovanović MT, Todorović M, Trtanj M, Šaponjić P. Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails. in Materials Characterization. 1999;43(4):243-250. doi:10.1016/S1044-5803(99)00006-6 .
Ilić, N., Jovanović, Milan T., Todorović, M, Trtanj, M, Šaponjić, Petar, "Microstructural and mechanical characterization of postweld heat-treated thermite weld in rails" in Materials Characterization, 43, no. 4 (1999):243-250, https://doi.org/10.1016/S1044-5803(99)00006-6 . .