Microstructure evolution after thermo-mechanical treatment of X11MnSiAl25-1-3 TWIP-type steel

• Autorzy: Dobrzańska-Danikiewicz A. , Borek W. , Mazurkiewicz J. , Jagiełło A.
• Języki publikacji: PL

Abstrakty

EN

Purpose: The purpose of the article is to present the results of research of the effect of thermal and thermoplastic working on the structure of high-manganese austenitic TWIP steels. Design/methodology/approach: Plastometric tests were performed with DSI (Dynamic System Inc.) Gleeble 3800 instrumentation being the equipment of the Scientific and Didactic Laboratory of Nanotechnology and Materials Technologies of the Institute of Engineering Materials and Biomaterials. Changes in the microstructure after individual stages of hot plastic deformation were determined on the basis of detailed microstructure tests with the light microscope and scanning electron microscope. An X-ray phase qualitative analysis of the examined materials in the condition after casting and after thermoplastic working was carried out with the XPert diffractometer by Philips. Findings: It was concluded based on the tests performed that the structure of the examined austenitic high-manganese steel in the initial condition is represented by austenite with numerous annealing twins. The results obtained for investigations in a continuous compression test will enable to establish power and energy parameters and design a hot compression process, consisting of several phases, of axisymmetric specimens, simulating the final rolling passes. Practical implications: By elaborating the detailed data concerning structural changes and power and energy parameters of the thermoplastic working process of the investigated high-manganese austenitic TWIP steel type, it will be possible to design appropriately the final passes of the hot rolling process to obtain an optimum size of grains, which will in turn influence the improved strength properties of the investigated high-manganese austenitic X11MnSiAl25-1-3 steel. Originality/value: The application of thermoplastic working of high-manganese austenitic TWIP steel.

Słowa kluczowe

PL

materiał plastyczny; stal TWIP; obróbka plastyczna na gorąco; rekrystalizacja dynamiczna

EN

superplastic material; TWIP steel; hot-working; dynamic recrystalization

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2013
• Tom: Vol. 59, nr 1
• Strony: 14--21
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Dobrzańska-Danikiewicz A.

• Faculty of Mechanical Engineering,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Borek W.

• Faculty of Mechanical Engineering,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Mazurkiewicz J.

• Faculty of Mechanical Engineering,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Jagiełło A.

• Faculty of Mechanical Engineering,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

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