Modeling of crystallographic texture development in metals accounting for micro-shear bands

• Autorzy: Kowalczyk-Gajewska K. , Gambin W. , Pęcherski R. B. , Ostrowska-Maciejewska J.

Warianty tytułu

PL

Modelowanie rozwoju tekstury krystalograficznej w metalach z uwzględnieniem mikropasm ścinania

• Konferencja: Scientific Seminar Integrated Study on the foundations of Plastic Deformation of Metals PLASTMET'04 (4; 16-19.11.2004; Łańcut, Poland)
• Języki publikacji: EN

Abstrakty

EN

The rigid-plastic model for the single grain is developed in which the velocity gradient is split into two parts connected with crystallographic slip and micro-shear bands respectively. For crystallographic slip the regularized Schmid law proposed by Gambin is used. For the micro-shear bands the framework with the function fMS that accounts for the contribution of this mechanism into the total plastic deformation described by Pecherski is applied. Different constitutive equations for the plastic spin due to two considered mechanisms of plastic deformation are used. The presented model is applied to simulate crystallographic texture evolution in the polycrystalline element.

PL

Opracowano sztywno-plastyczny model pojedynczego ziarna,w którym tensor gradientu prędkości został rozbity na dwie części związane odpowiednio z poślizgiem krystalograficznym i mikropasmami ścinania. Dla poślizgu krystalograficznego zastosowano regulryzowane prawo Schmida zaproponowane w pracy [8]. Dla mikropasm ścinania użyto formalizmu rozwiniętego w [18], gdzie uwzględnia się ich udział w przyroście deformacji plastycznej poprzez funkcje fMS. Zastosowane zostały różne równania konstytutywne dla części spinu plastycznego wywołanych rozważanymi dwoma mechanizmami deformacji plastycznej. Zaprezentowany model wykorzystano w symulacji rozwoju tekstury krystalograficznej w elemencie polikrystalicznym

Słowa kluczowe

EN

crystallographic texture; shear band

PL

tekstura krystaliczna; pasmo ścinania

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2005
• Tom: Vol. 50, iss. 3
• Strony: 575--593
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Kowalczyk-Gajewska K.

• Institute of Fundamental Technological Research PAS, 00-049 Warsaw, Świętokrzyska 21, Poland

autor

Gambin W.

• Institute of Fundamental Technological Research PAS, 00-049 Warsaw, Świętokrzyska 21, Poland
• Department of Applied Mechanics, Faculty of Mechatronics, Warsaw University of Technology, 02-525 Warsaw, Chodkiewicza 8, Poland

autor

Pęcherski R. B.

• Institute of Fundamental Technological Research PAS, 00-049 Warsaw, Świętokrzyska 21, Poland
• Institute of Structural Mechanics, Faculty of Civil Engineering, Cracow Universrty of Technology, Warszawska 24, 31-155 Cracow, Poland

autor

Ostrowska-Maciejewska J.

• Institute of Fundamental Technological Research PAS, 00-049 Warsaw, Świętokrzyska 21, Poland

Bibliografia

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