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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Radovic, Ljubica
Military Technical Institute
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Fracture analysis of vehicle-mounted telescoping communications mast
- 2021Influence of retrogression and re-aging treatment on mechanical properties of the alloy EN AW 7049A-T6
- 2020The effect of heat input on the fracture behaviour of surface weld metal of rail steel
- 2019Effects of initial microstructure on the earring of aluminium alloys cartridge case
- 2019The effect of friction stirs welding speed on microstructure, mechanical properties and IGC of EN AW-5083 platescitations
- 2018The influence of heat input on the toughness and fracture mechanism of surface weld metal
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article
The effect of heat input on the fracture behaviour of surface weld metal of rail steel
Abstract
Surface welding of rail steel with self-shielded wire was conducted with different heat inputs, and the influence of welding heat input on the total impact energy and its compo-nents, crack growth rate and fracture mechanism was systematically investigated. It is shown that toughness decreases as heat input increases, but, with a temperature decrease, these differences are not so marked. An increase of heat input leads to increasing the share of transgranular brittle fracture, what is in complete accordance with the obtained energy values. It is established that fatigue life increases when increasing the welding heat input, while resistance to crack growth decreases in the final deposit layer up to the HAZ at all heat inputs. Based on obtained results, the optimal value of heat input is defined for the selected welding procedure. ; The research is performed in the frame of the national project TR 35024 (Contract 451-03-68/2020-14/200105) financed by the Ministry of Education, Science and Tech-nological Development of the Republic of Serbia. ; Published