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Title: Cross wedge rolling of a Ti6Al4V (ELI) alloy: the experimental studies and the finite element simulation of the deformation and failure
Authors: Çakırcalı, Metin
Kılıçaslan, Cenk
Güden, Mustafa
Kıranlı, Engin
Shchukin, Valery Y.
Petronko, Vladimir V.
Keywords: Cross wedge rolling
Material model
Issue Date: 6-Jun-2012
Publisher: Springer Verlag
Source: Güden, M., Kılıçaslan, C., Çakırcalı, M., Kıranlı, E., Shchukin, V. Y., & Petronko, V. V. (2012). Cross wedge rolling of a Ti6Al4V (ELI) alloy: the experimental studies and the finite element simulation of the deformation and failure. The International Journal of Advanced Manufacturing Technology, 65 (9-12), 1273-1287. doi: 10.1007/s00170-012-4256-3
Abstract: The cross wedge rolling (CWR) deformation and fracture of a Ti6Al4Al (ELI) alloy were investigated experimentally and numerically using a coupled thermomechanical finite element model analysis. The experimentally determined flow stress and damage model parameters were verified by tension split Hopkinson pressure bar testing of notched samples. The simulation and experimental CWR forces showed well agreements except near the end of the stretching zone. The model analysis showed that the temperature distribution in the work piece was nonuniform during the CWR. When the initial temperature of the work piece was relatively low, the work piece temperature increased, a heating effect of the plastic deformation, while relatively high initial work piece temperatures resulted in cooling the work piece, caused by the work piece contact with the tools. The cracks were shown numerically to initiate in the midsections of the work piece during the guiding action and elongated in a direction normal to the maximum tensile stress triaxiality, resulting in cruciformshaped crack formation, which was well agreed with the previously observed crack shape.
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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