نتایج جستجو برای: dynamic continuous recrystallization

تعداد نتایج: 655965  

2013
Nele Moelans Andy Godfrey Yubin Zhang Dorte Juul Jensen

We present simulation results based on a phase-field model that describes the migration of recrystallization boundaries into spatially varying deformation energy fields. Energy fields with 2-dimensional variations representing 2 sets of dislocation boundaries lying at equal, but opposite, angles to the moving boundary are considered. The simulations show that the shape and overall migration rat...

2013
S. K. Chaudhury V. Warke S. Shankar Diran Apelian

During heat treatment, the work piece experiences a range of heating rates depending upon the sizes and types of furnace. When the Al-Si-Mg cast alloy is heated to the solutionizing temperature , recrystallization takes place during the ramp-up stage. The effect of heating rate on recrystallization in the A356 (Al-Si-Mg) alloy was studied using dilatometric and calorimetric methods. Recrystalli...

2017
Shuwang Wu Chongqin Zhu Zhiyuan He Han Xue Qingrui Fan Yanlin Song Joseph S Francisco Xiao Cheng Zeng Jianjun Wang

Ice recrystallization is of great importance to both fundamental research and practical applications, however understanding and controlling ice recrystallization processes remains challenging. Here, we report the discovery of an ion-specific effect on ice recrystallization. By simply changing the initial type and concentration of ions in an aqueous solution, the size of ice grains after recryst...

2011
Håkan Hallberg

Control of the material microstructure in terms of the grain size is a key component in tailoring material properties of metals and alloys and in creating functionally graded materials. To exert this control, reliable and efficient modeling and simulation of the recrystallization process whereby the grain size evolves is vital. The present contribution is a review paper, summarizing the current...

Journal: :Materials Characterization 2022

The occurrence of dynamic recrystallization in warm rolling plain extra-low carbon steel was examined by applying 75% thickness reduction a single pass. investigated temperature range ambient to 700 °C. Results show apparently remains absent symmetric below 600 Nevertheless, not only just occurs but accelerates as the condition changed from asymmetric condition. analysis grain internal disorien...

Journal: :International Journal of Material Forming 2021

Abstract The evolution of grain size and component mechanical behaviour are fundamental aspects to analyse control when manufacturing processes considered. In this context, severe plastic deformation (SPD) processes, in which a high shear strain is imposed on the material, recognized as main techniques achieve microstructural changes material strengthening by recrystallization, attracting both ...

2010
Y. B. Chun

The recrystallization behavior of cold-rolled, commercial-purity titanium was studied experimentally and with Monte-Carlo (MC) modeling. Utilization of EBSD-OIM as input for MC modeling resulted in realistic predictions of recrystallization kinetics, microstructure and texture, which were in good agreement with experimental results. MC modeling of recrystallization kinetics predicted that non-u...

2017
Paolo Ferro Franco Bonollo Fabio Bassan Filippo Berto

Electron BackScatter Diffraction (EBSD) in conjunction with Field-Emission Environmental Scanning Electron Microscopy (FEG-ESEM) has been used to evaluate the microstructural and local plastic strain evolution in different alloys (AISI 1005, AISI 304L and Duplex 2205) deformed by a single-stage cold and warm forging process. The present work is aimed to describe the different behavior of the au...

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