Physical metallurgy and modelling of theromomechanically processed microalloyed steels.

• Autorzy: Siwecki T.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies, AMT'98, Kraków-Krynica 17-21May 1998, Poland
• Języki publikacji: EN

Abstrakty

EN

The effects of thermo-mechanical controlled processes (TMCP) followed by accelerated cooling (ACC) or direct quenching (DQ) and their parameters are discussed in relation to the microstructure (development) and mechanical properties of high strength steels, microalloyed with Ti, V, (Mo) and/or Nb. Computer models for calculation of microstructure evolution (grain size, grain growth, precipitation and flow stress) during heavy plate, strip and long product hot rolling are invaluable for design of TMCP-rolling schedules combining a maximum degree of microstructure refinement with acceptably low rolling loads. Intelligent design of deformation/temperature schedules aims to generate an optimal austenite microstructure and subsequently a fine ferrite/bainite conferring both taughness and strength. A comparison is made of the results of laboratory simulations with full scale industrial plate, strip and long product processing using TMCP practices obtained at various (high and low) finish rolling temperatures with and without application of accelerated cooling/direct quenching.

Słowa kluczowe

EN

physical metallurgy; computer modelling; thermomechanical processing; microalloyed steel; accelerated cooling

PL

metaloznawstwo; modelowanie komputerowe; obróbka termomechaniczna; stal mikrostopowa; chłodzenie przyspieszone

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 3
• Strony: 163--170
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Siwecki T.

• Swedish Institute for Metals Research, Stockholm, Sweden

• Swedish Institute for Metals Research, Stockholm, Sweden

Bibliografia

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• [8] T, Siwecki, S. Ząjac and B. Ahlblom, Physical Metallurgy of Direct Quenched Steels, ASM/TMS Materials Week 1992 Conference, Chicago, Warrendale, PA, (1993), 213.
• [9] T. Siwecki, ISIJ International, 32 (1992) 368,
• [10] T. Siwecki, S. Zajac and G. Engberg, 37th MWSP Conference, ISS-AIME, Hamilton, Canada, (MWSP-33 ) (1995) 721.
• [11] T. Siwecki and G. Engberg, Thermo-Mechanical Processing in Theory, Modelling&Practice, Stockholm, 1996, ASM Intern. (1997), 121.