EFFECT OF ELECTROPULSING TREATMENT ON THE MECHANICAL PROPERTIES OF Q235 STEEL STRIP
https://doi.org/10.17073/0368-0797-2013-6-40-43
Abstract
The elctropulsing treatment (EPT) has been successfully applied to the processing of a low carbon Q235 steel strip. Comparing with the conventional heat treatment (CHT), a proper EPT is capable of achieving the similar or even better effect on the mechanical properties of the steel strip. It was found that the optimum combination of the EPT parameters are 180 V in voltage and 500 Hz in frequency (180 V – 500 Hz) leading to a combination of tensile strength-elongation of 371 MPa – 47,5 %. Optical microscopy analyses indicates that the EPT/180 V – 500 Hz for Q235 steel strip can accelerate the formation of the completely recrystallized microstructure in which the grain size become relatively finer and more uniform compared to the elongated one formed in the cold-rolled sample. Such phenomenon is consistent with the improvement of the mechanical performance of the Q235 steel sample under the EPT. However, the EPT with inadequate frequency can only result in partial recrystallization of the grains, while the one with an exceed frequency may lead to the apparent grain growth within the sample. Both cases can not produce satisfactory combination of strength and ductility for the steel samples.
About the Authors
Chen Suwen
Институт перспективных материалов, Высшая школа постдипломного образования в г. Шеньжень, Университет Циньхуа (Китай)
Факультет материаловедения и инженерии, Высшая школа постдипломного образования в г. Шеньжень, Харбинский технологический институт (Китай)
China
China
Tang Guoyi
Институт перспективных материалов, Высшая школа постдипломного образования в г. Шеньжень, Университет Циньхуа (Китай)
China
China
Song Shenhua
Факультет материаловедения и инженерии, Высшая школа постдипломного образования в г. Шеньжень, Харбинский технологический институт (Китай)
China
China
Song Guolin
Институт перспективных материалов, Высшая школа постдипломного образования в г. Шеньжень, Университет Циньхуа (Китай)
China
China
V. E. Gromov
Сибирский государственный индустриальный университет
Russian Federation
Russian Federation
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Review
For citations:
Suwen Ch., Guoyi T., Shenhua S., Guolin S., Gromov V.E. EFFECT OF ELECTROPULSING TREATMENT ON THE MECHANICAL PROPERTIES OF Q235 STEEL STRIP. Izvestiya. Ferrous Metallurgy. 2013;56(6):40-43. (In Russ.) https://doi.org/10.17073/0368-0797-2013-6-40-43
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