Constitutive behaviour of steel in mushy state

• Autorzy: Petruska, J. , Ridky, R. , Horsky, J. , Kotrbacek, P.
• Konferencja: Modelling and optimization of physical systems/International Seminar of Applied Mechanics (8 ; 04.06-06.06.2004 ; Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

Semi-solid or mushy state processing permits a material to partially solidify before shape making operations. The understanding of material behaviour in the mushy state is critical for better control of various semi-solid processes. The aim of the present study is to experimentally quantify the deformation behaviour of carbon steel in mushy states. Semi-solid specimens under upsetting deformation were evaluated at various forming rates. The temperature of specimens was carefully controlled to keep the solid fraction constant. Based on the experiments, material parameters of the Perzyna's constitutive model are identified. Good correlation between simulated and measured results of the compression force was observed.

Słowa kluczowe

PL

stal węglowa; odkształcenia

EN

carbon steel; deformation

• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2004
• Tom: z. 25
• Strony: 121-124
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Petruska, J.

• Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno University of Technology,

autor

Ridky, R.

• Faculty of Mechanical Engineering, Bro University of Technology

autor

Horsky, J.

• Laboratory of Heat Exchange Faculty Mechanical Engineering, Brno University of Technology

autor

Kotrbacek, P.

• Brno University of Technology

Bibliografia

• [1] Laxmanan, V., Flemings, M.C.: Deformation of semi-solid Sn-15 Pct Pb alloy, Metallurgical Transactions A, 11A, (1980), 1927-1936
• [2] Suery, M. and Flemings, M. C.: Effect of Strain Rate on Deformation Behavior of Semi-solid Dendritic Alloys, Metallurgical Transactions A, Vol. 13A, (1982), pp. 1809-1819.
• [3] Turng,T.S., Wang,K.K.: Rheological behaviour and modeling of semi-solid Sn-15% aloy, J.Mat.Sci. 26 (1991), 2173-2183.
• [4] Yoon, J.H., Im, Y.T, Kim, N.S.: Finite element modeling of the deformation behavior of semi-solid materials, J.Mat.Proc.Tech. 113, (2001), 153-159.
• [5] Zavaliangos, A., Lawley, A.: Numerical simulation of thixoforming, J.Mat.Eng. Performance 4, (1995), 40-47.
• [6] Perzyna, P.: Fundamental problems in viscoplasticity, Advances in Applied Mechanics 9, (1968), 313-377.