نتایج جستجو برای: nano recrystallization

تعداد نتایج: 54514  

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...

Journal: :international journal of iron & steel society of iran 2005
b. soleimani amiri g. h. akbari

in the present work the recrystallization behavior of deep drawing grade al-killed low carbon steel sheets produced by mobarakeh steel plant (msp) has been studied. salt bath isothermal annealing has been applied to cold rolled samples and the resulted microstrucrures have been compared with the microstructure obtained from the box annealing process in msp. it is found that at 635 and 700ºc the...

2017
X R Li A Wakeel T L Huang G L Wu

An Al-0.3%Cu alloy was deformed to high strains by cold rolling. The as-deformed samples were annealed at different temperatures until complete recrystallization. The cold rolling textures were determined by X-ray diffraction while the recrystallization textures and microstructures were characterized by electron backscatter diffraction. It was found that the rolling texture was characterized by...

2016
J. Schamp B. Verlinden J. Van Humbeeck

Tough pitch copper wire (99.97% Cu) is generally characterized by the spiral elongation number. The principle of the test is based on the influence of impurities on the recrystallization kinetics. Alternative non-metallographic techniques to characterize the recrystallization kinetics have been investigated in this study, such as differential scanning calorimetry (D.S.C.) and residual electrica...

2015
Y. Jin B. Lin A. D. Rollett G. S. Rohrer M. Bernacki N. Bozzolo

The effects of prior stored energy level, annealing temperature, heating velocity, and initial grain size on annealing twin development during static recrystallization of commercially pure nickel (99.999 %) are investigated. The twin content (measured as the twin boundary density or as the number of twins per grain) at the end of recrystallization is shown to be primarily influenced by the prio...

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...

2003
Wing K. Liu Su Hao Franck J. Vernerey Hiroshi Kadowaki Harold Park Dong Qian

In computational quantum steel design of CyberSteel 2020, we need to combine material science, quantum physics, and continuum mechanics with multiscale analysis. In this talk, we first give a brief review of experimental results of macroscopic observations, micro-scale voids, sub-micron scale recrystallization, and nano-scale dislocations and twins. Simulation results of each scale physics usin...

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