Engineering of forged products of microalloyed constructional steels

• Autorzy: Adamczyk, J. , Opiela, M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Effect of the thermo-mechanical treatment conditions on the structure and mechanical properties of the forged elements of constructional C-Mn steels with Ti, V, B and N microadditions. Design/methodology/approach: Metallography, electron microscopy, tensile test, hardness measurements, hardenability calculations, Charpy-V tests have been used. Findings: The thermo-mechanical treatment allows to obtain the fine-grained austenite structure during hot plastic deformation, and gives forged elements obtaining: yield point Rp0,2 over 690 MPa, UTS over 770 MPa, hardness 220 up to 250 HB and breaking energy KV over 180J after high tempering. Research limitations/implications: It is predicted TEM investigations on structure of the forged elements after thermo-mechanical treatment. Practical implications: Investigations carried out showed full usability of micro-alloyed steels for producing forged machine parts with the high strength and cracking resistance, using the energy-saving thermo-mechanical treatment method. Originality/value: Production conditions of energy-saving thermo-mechanical treatment of forged elements of HSLA constructional steels – with the diversified hardenability, were presented.

Słowa kluczowe

PL

obróbka termomechaniczna; stale mikrostopowe; elementy kute; właściwości mechaniczne; odporność na pękanie

EN

thermomechanical treatment; microalloyed steels; forged elements; mechanical properties; cracking resistance

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 15, nr 1-2
• Strony: 153--158
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Adamczyk, J.

• Division of Construction and Special Materials Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Opiela, M.

• Division of Construction and Special Materials Engineering, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] T. Gladman, The Physical Metallurgy of Microalloyed Steels, The Institute of Materials, London, 1977.
• [2] J. Adamczyk, Engineering of Steel Products, Wyd. Politechniki Śląskiej, Gliwice, 2000, (in Polish).
• [3] J. Adamczyk, Engineering of Metallic Products cz.1, Wyd. Politechniki Śląskiej, Gliwice, 2004, (in Polish).
• [4] J. Adamczyk, M. Opiela, Journal of Mater. Processing and Technology, v. 157-158, 2004, s. 456.
• [5] J. Adamczyk, E. Kalinowska-Ozgowicz, W. Ozgowicz, R. Wusatowski, Journal of Mater. Processing and Technology, v. 53, 1995, s. 23.
• [6] M. Korchynsky, Microalloyed Forging Steel, Union Carbide, GmbH, 1990.
• [7] S. Engineer, B. Huchteman, Proc. Symp. Fundamentals and Applications of Microalloying Forging Steels, Colorado, TMS, 1996, s. 61.
• [8] J. Adamczyk, M. Opiela, A. Grajcar, 10th Int. Conf. AMME’2001, 2001, s. 5, (in Polish).
• [9] J. Adamczyk, M. Opiela, A. Grajcar, 11th Int. Conf. AMME’2002, 2002, s. 7, (in Polish).
• [10] J. Adamczyk, M. Opiela, A. Grajcar, 12th Int. Conf. AMME’2003, 2003, s. 21, (in Polish).