Facilitating the occurrence of dynamic recrystallization in plain extra low-carbon steel by warm asymmetric rolling

نویسندگان

چکیده

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 disorientations and geometrically necessary dislocation densities High-angular Resolution on-axis Transmission Kikuchi Diffraction (HR-TKD) allowed identify type its evolution through range. New grains formed either continuous or discontinuous are preferentially orientated according typical shear texture up °C case rolling. Above °C, dynamically recrystallized produce restrengthening well overall texture.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

PREDICTION OF CRITICAL STRESS AND STRAIN FOR THE ONSET OF DYNAMIC RECRYSTALLIZATION IN PLAIN CARBON STEELS

The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels. For this propose, torsion tests were conducted at different temperature (1050, 1100 and 1150˚C) and strain rates (0.002, 0.02 and 0.2/s). All flow curves showed a peak st...

متن کامل

Recrystallization Behavior of Deep Drawing Low Carbon Steel Sheets Produced by Mobarakeh Steel Plant

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...

متن کامل

Isothermal Recrystallization Behavior of Cold-deformed Martensite in an Ultra-low-carbon Microalloyed Steel

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...

متن کامل

recrystallization behavior of deep drawing low carbon steel sheets produced by mobarakeh steel plant

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...

متن کامل

تاثیر ترکیب شیمیایی بر تحولات ریزساختاری فولادهای میکروآلیاژی در حین تغییر شکل گرم در منطقه دو فازی (آستنیت + فریت)

Laboratory hot torsion testing technique was carried out on one plain low carbon steel and two plain low carbon Nb and Nb-Ti micro alloyed steels to study the effects of chemical composition, micro alloying addition, on the dynamic softening and grain refinement of ferrite during warm deformation. Deformation schedule was conducted within two phase region (i.e. between Ar3-Ar1). The physical pr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Materials Characterization

سال: 2022

ISSN: ['1044-5803', '1873-4189']

DOI: https://doi.org/10.1016/j.matchar.2022.111942