Study on Recrystallization and Precipitation Behavior of Cold-Rolled Low-Alloy High Strength Steel

被引：0

作者：

Li Z.-H. ^{[1
]}

Ren J.-K. ^{[1
]}

Huo J.-S. ^{[2
]}

Li J.-P. ^{[1
]}

机构：

[1] School of Material Science & Engineering, Northeastern University, Shenyang

[2] Tangshan Steel Plate Co., Ltd., Tangshan

来源：

Dongbei Daxue Xuebao/Journal of Northeastern University | 2019年 / 40卷 / 03期

关键词：

Annealing; Cold-rolled; Low-alloy steel; Precipitation; Recrystallization;

D O I：

10.12068/j.issn.1005-3026.2019.03.007

中图分类号：

学科分类号：

摘要：

The kinetics of recrystallization in cold-rolled low-alloy high strength steel was studied by thermal simulation test. A kinetic model of recrystallization was built based on JMAK equation, which provided a theoretical basis to control ferrite recrystallization and precipitation behavior. The results show that the recrystallization completion time is greatly decreased with increasing annealing temperature. For the same reduction of cold rolling, the initial bainite structure contains a higher dislocation density and storage energy during annealing. The recovery and recrystallization process are synchronously advanced at the heating rate of 80℃/s, and the residual deformation storage energy increases before recrystallization so that the ferrite recrystallization can be quickly completed. Moreover, after the new process, the precipitation size in the experimental steel is more uniform and the volume fraction is higher, which lead to a better performance of precipitation strengthening. © 2019, Editorial Department of Journal of Northeastern University. All right reserved.

引用

页码：339 / 344

页数：5

共 14 条

[1]

Wang Z.-B., Development of low alloy high strength steel in the beginning of new century, China Metallurgy, 13, 2, pp. 16-19, (2003)

[2]

Majta J., Muszka K., Mechanical properties of ultra fine-grained HSLA and Ti-IF steels, Materials Science & Engineering A, 464, 1, pp. 186-191, (2007)

[3]

Zhang Y.J., Miyamoto G., Shinbo K., Et al., Effects of transformation temperature on VC interphase precipitation and resultant hardness in low-carbon steels, Acta Materialia, 84, 6, pp. 375-384, (2015)

[4]

Das S.K., Chatterjee S., Tarafder S., Effect of microstructures on deformation behaviour of high-strength low-alloy steel, Journal of Materials Science, 44, 4, (2009)

[5]

Li C.-N., Yuan G., Kang J., Et al., Effect of asymmetric hot rolling on microstructure and mechanical properties in low alloy steel, Journal of Northeastern University(Natural Science), 38, 7, pp. 941-945, (2017)

[6]

Saidi P., Shahandeh S., Hoyt J.J., Relationship between recrystallization kinetics and the inhomogeneity of stored energy, Metallurgical and Materials Transactions A, 46, 7, pp. 2975-2985, (2015)

[7]

Bon A.L., Rofes-Vernis J., Rossard C., Recrystallization and precipitation during hot working of a Nb-bearing HSLA steel, Metal Science Journal, 9, 1, pp. 36-40, (2013)

[8]

Liu Z.Y., Olivares R.O., Lei Y.K., Et al., Microstructural characterization and recrystallization kinetics modeling of annealing cold-rolled vanadium microalloyed HSLA steels, Journal of Alloys and Compounds, 679, 5, pp. 293-301, (2016)

[9]

Weinberg M.C., Birnie D.P., Shneidman V.A., Crystallization kinetics and the JMAK equation, Journal of Non-crystalline Solids, 219, 27, pp. 89-99, (1997)

[10]

Oyarzabal M., Martinez-De-Guerenu A., Gutierrez I., Effect of stored energy and recovery on the overall recrystallization kinetics of a cold rolled low carbon steel, Materials Science & Engineering A, 485, 1, pp. 200-209, (2008)

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