Finite element simulation of hot plain strain compression test of austenitic steell

• Autorzy: Aksenov, S. , Kliber, J. , Fabík, R.
• Konferencja: Metody oceny struktury oraz własności materiałów i wyrobów/sympozjum (XXII ; 6-8.XI.2007 ; Svratka, Czechy)
• Języki publikacji: EN

Abstrakty

EN

The paper dials with the results of plain strain compression test of austenitic steel on GLEEBLE test machine. In order to obtain true strain-stress curves the results was corrected in accordance with experiment conditions. For normal constant strain rate the local strain rate in the slip line field varies for different initial specimen geometries. Therefore, the understanding of real stress-strain dependence needs to take such effects into account. Moreover, the variations in strain and strain rate within the test-piece cleary have a significant influence on the evolution of microstructure. To analyze the local strain rate distribution futures and its influence on flow stress level, the finite element simulation of the process was made. The association of strain and strain rate characteristics within the test-piece with the results of metallographic analysis is also presented in this study.

Słowa kluczowe

EN

plain strain compression test; PSCT; austenitic steel; stress-strain dependence; metallographic analysis

• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2007
• Tom: Vol. 321, z. 89
• Strony: 81-81
• Opis fizyczny: Bibliogr. 4 poz., il., tab., wykr.

Twórcy

autor

Aksenov, S.

autor

Kliber, J.

autor

Fabík, R.

• VŠB Technical University of Ostrava

Bibliografia

• [1] SUIKKANEN P.P., KORNI J.I., KARJALAINEN L.P.: Processing Low and Ultr-Low Varbon Bainitic Steels. Materials Science Forum Vols. 500-501(November 2005) pp. 535-542.
• [2] JONAS J.J., POLIAK E.I.: A New Model for Interpass Softening Based on the Strain Hardening Rate Prior to Unloading. Materials Science Forum Vols. 500- 501(November 2005) pp. 15-26.
• [3] LACEY A.J., LOVEDAY M.S., MAHON G.J., ROEBUCK B., SELLARS C.M. and VAN DER WINDEN M.R.: Measuring flow stress in hot plane strain compression tests. Measurment Good Practice Guide No 27, Summer 2002, 85 p., ISSN 1368-6550.
• [4] KOWALSKI B., SELLARS C.M., PIETRZYK M.: Identification of reological parameters on the basis of plane strain compression test on speciments of various initial dimensions. Computation Materials Science 35 (2006) 92-97.