نتایج جستجو برای: recrystallization process

تعداد نتایج: 1315631  

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...

A. Ghorabaei M. Nili-Ahmadabadi,

One of the most promising ways to produce a grain-refined microstructure in some steel materials is the thermomechanical processing route of subcritical recrystallization annealing of a cold-deformed martensite structure. In the present study, the microstructural evolutions and the associated recrystallization kinetics under various subcritical annealing heat treatment conditions are explored i...

B. Soleimani Amiri G. 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 b...

Journal: :مهندسی متالورژی و مواد 0
محسن نصیریان بهمن میرزا خانی مصطفی منصوری نژاد

the flow stress of steel depends significantly on microstructural changes taken place during hot deformation processes. in hot deformation processes, the flow stress of steel is influenced by two main metallurgical phenomena, i.e. recovery and recrystallization, along with its chemical composition and thermo-mechanical parameters. the final mechanical properties of steel are also determined 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...

2013
Ramakrishnan Sumathi Mahalingam Usha

The strength of any material is dependent on the grain size and percentage of volume fraction recrystallization. In this Paper, a new approach for controlling microstructure development during hot working process by percentage of volume fraction recrystallization is proposed. Here two different methods are employed. One of the approaches is based on the Optimal Control theory and involves the d...

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: :Journal of Japan Institute of Light Metals 1969

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1960

Journal: :Chemical communications 2015
Zhendong Liu Naoki Nomura Daisuke Nishioka Yuusuke Hotta Takeshi Matsuo Kazunori Oshima Yutaka Yanaba Takeshi Yoshikawa Koji Ohara Shinji Kohara Takahiko Takewaki Tatsuya Okubo Toru Wakihara

We herein present a top-down methodology to prepare nanosized zeolites with tunable size by combining post-synthesis milling and fast recrystallization of several minutes (10 min for SSZ-13 and 5 min for AlPO4-5). A continuous-flow recrystallization process is demonstrated to further enhance the overall product efficiency.

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