نتایج جستجو برای: dynamic recrystallization

تعداد نتایج: 409217  

Journal: :Metals 2022

The flow stress and dynamic recrystallization behavior of A356 aluminum alloy was studied, with a strain rate ranging from 0.001 s?1 to 1 temperature 300 500 °C. Both the true stress–strain curves microstructure examination indicated that occurred during isothermal compression. A physical model based on Arrhenius equation developed, this can accurately predict fraction Finally, implemented in F...

Journal: :Scripta Materialia 2022

Nanotwin formation is observed during laser powder bed fusion (LPBF) of austenitic stainless steels fabricated with various process parameters. Transmission electron microscopy was employed to reveal the nature such twins, which are formed due high strain rapid solidification inherent LPBF. Dynamic recrystallization (DRX) also activated LPBF, and induced by deformation nanotwins. A thermostatis...

Friction stir welding (FSW) was conducted on AISI 304 austenitic stainless steel plate with 2 mm thickness. The FSW was performed at a welding and rotational speeds of 50 mm/min and 400 rpm, respectively. Microstructure observations by the optical microscopy showed that a severe grain refinement occurred in the stir zone (SZ). Electron backscattered diffraction analysis (EBSD) results indicated...

2011
Tomoaki Hagiwara Eri Ohmoto Kazuma Tokizawa Takaharu Sakiyama

Recrystallization rate of ice crystals in 33% sucrose solutions, a model frozen dessert, was measured in the presence of antifreeze protein Type I (AFP type I) at -10°C, which is relevant to practical storage or distribution temperature of frozen dessert. The concentrations of AFP type I were set to 0.01, 0.1, and 1g/ml, respectively. Ice crystals during recrystallization process were observed...

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