Laboratory melting, casting and forging of manganese TWIP steel

• Autorzy: Martinek P. , Podany P. , Duchek M. , Konopik P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The article deals with the possibility of experimental melting, casting and forging of these kinds of steel in laboratory induction melting furnace Design/methodology/approach: The metallographic tests and Rastegaev compression test were made to describe microstructural properties and flow stress behaviour at different forging temperatures. Findings: Results of this test show the true stress - true plastic strain diagrams which can be used as a data input to the numerical simulation of forging for example in DEFORM 3D simulation software. Research limitations/implications: Microstructure analysis proved successful handling during all forging operations - no cracks and similar defects were observed in the microstructure. Practical implications: Transportation industry demands high strength steels with the possibility to absorb high energy in case of a sudden collision. In recent years, so-called TWIP steels are in the focus of research of materials with high strength suitable for car bodies. Originality/value: TFeMn TWIP is a high-strength steel concept with superior formability, which may be close to being produced industrially. High manganese TWIP steels are highly ductile, high strength Mn austenitic steels characterized by a high rate of work hardening resulting from the generation of deformation-nucleated twins.

Słowa kluczowe

EN

TWIP steels; melting; microstructure; flow stress

PL

stale TWIP; topienie; mikrostruktura; naprężenie uplastyczniające

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2015
• Tom: Vol. 71, nr 1
• Strony: 39--44
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Martinek P.

• COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic

autor

Podany P.

• COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic

autor

Duchek M.

• COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic

autor

Konopik P.

• COMTES FHT a.s., Prumyslova 995, 334 41 Dobrany, Czech Republic

Bibliografia

• [1] G. Niewielski, D. Kuc, J. Cebulski, S. Lalik, Microstructure and selected properties of Mn-Al duplex steels, Archives of Materials Science and Engineering 47/1 (2011) 11-18.
• [2] B.C. De Cooman, K.-G. Chin, J. Kim. High Mn TWIP Steels for Automotive Applications, New Trends and Developments in Automotive System Engineering, Prof. Marcello Chiaberge (Ed.), InTech, 2011, Available from: http://www.intechopen.com/-books/new-trends-nddevelopments-in-automotive-system-engineering/high-mn-twip-steels-for-automotive-applications
• [3] J.H. Ryu, S.K. Kim, C.S. Lee, D.-W. Suh, H.K.D.H. Bhadeshia. Effect of aluminium on hydrogen-induced fracture behaviour in austenitic Fe-Mn-C steel. Proceedings of the Royal Society A 469 (2012) 0458.
• [4] Y. Kim, N. Kang, Y. Park, I. Choi, G. Kim, S. Kim, K. Cho, Effects of the strain induced martensite transformation on the delayed fracture for Al-added TWIP steel. Journal of the Korean Institute of Metals and Materials 46 (2008) 780–787.
• [5] L.A. Dobrzański, W. Borek, Mechanical properties and microstructure of high-manganese TWIP, TRIP and TRIPLEX type steels, Journal of Achievements in Materials and Manufacturing Engineering 55/2 (2012) 230-238.
• [6] J. Džugan, M. Zemko, Input data influence on FEM simulation of steam turbine blades materials hot forming, , Materials Science Forum 773-774 (2013) 79-88.
• [7] J. Džugan, H. MacGillivray, U. Mayer, V. Mentl, C. Watson, ESIS TC5 European round robin on dynamic compression testing, Proceedings of the 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures 3, 2008, 2598-2605.