Effect of electric field tempering on microstructure and properties of T8A steel

doi:10.13251/j.issn.0254-6051.2020.04.019

Abstract

Abstract: Microstructure and mechanical properties of as-quenched T8A steel treated at different tempering temperature (170 ℃ and 400 ℃) for 2 h were studied without and with a 4 kV/cm DC electric field were studied by SEM, TEM. The results show that the electric field has no obvious effect on SEM micrographs of the T8A steel. After the electric field tempering, the carbides of the T8A steel has obvious spheroidizing tendency, which indicates that the electric field accelerates the tempering process. The hardness of the tempered specimen with electric field is lower than that without electric field. The impact absorbed energy of the tempered specimen with electric field at 400 ℃ decreases about 27% than that without electric field,but which at 170 ℃ increases about 14%.

Key words: electric field tempering, T8A steel, microstructure, mechanical properties

CLC Number:

TG156

Liu Fengfang, Gong Minglong, Bai Jing, Gao Qiuzhi, Zhao Xiang. Effect of electric field tempering on microstructure and properties of T8A steel[J]. Heat Treatment of Metals, 2020, 45(4): 94-98.

References

[1]刘晓涛, 崔建忠. 强电场奥氏体化对低碳钢淬火组织的影响[J]. 金属热处理, 2003, 28(4): 28-30.
Liu Xiaotao, Cui Jianzhong. Effect of austenization with an electric field on microstructure of a low carbon steel after quenching[J]. Heat Treatment of Metals, 2003, 28(4): 28-30.
[2]左都全, 黎俊初, 朱义灯. 7050时效成形薄板不同电场强度下的力学性能和回弹分析[J]. 金属热处理, 2016, 41(10): 153-157.
Zuo Duquan, Li Junchu, Zhu Yideng. Mechanical properties and springback analysis of 7050 alloy aging forming thin sheet under different electric field strength[J]. Heat Treatment of Metals, 2016, 41(10): 153-157.
[3]He C S, Zhang Y D, Wang Y N, et al. Texture and microstructure development in cold-rolled interstitial free (IF) steel sheet during electric field annealing[J]. Scripta Materialia, 2003, 48: 737-742.
[4]Conrad H, Cao W D, Lu X P, et al. Effect of electric field on cavitation in superplastic aluminum alloy 7475[J]. Materials Science and Engineering A, 1991, 138(2): 247-258.
[5]Lu H A, Conrad H. Influence of an electric charge during quench aging of a low-carbon steel[J]. Applied Physics Letters, 1991, 59(15): 1847-1849.
[6]Wang N L, Liu W, Wu F, et al. Influence of an electric field on the quench aging of a medium carbon steel[J]. Scripta Materialia, 2001, 44: 2517-2521.
[7]Wu C W, Liu T X, Ma G J. Effect of an electric field applied during the quenching on hardness of carbon steel[J]. Materials Science and Engineering A, 2008, 489: 62-64.
[8]Kapoor R, Sunil S, Bharat R G, et al. Electric current induced precipitation in maraging steel[J]. Scripta Materialia, 2018, 154: 16-19.
[9]曹丽云, 王建中, 刘兴江, 等. 脉冲电场对GCr15钢球化退火组织的影响[J]. 金属热处理, 2001, 26(11): 6-8.
Cao Liyun, Wang Jianzhong, Liu Xingjiang, et al. Influence of pulse-electric field on structure of GCr15 steel during spheroidizing annealing[J]. Heat Treatment of Metals, 2001, 26(11): 6-8.
[10]杨彦飞, 谢飞. 频率对交流电场增强45钢低温粉末法硼铝共渗的影响J]. 金属热处理, 2019, 44(5): 106-109.
Yang Yanfei, Xie Fei. Effect of frequency on alternating current field enhanced pack boron aluminizing on 45 steel at low temperature[J]. Heat Treatment of Metals, 2019, 44(5): 106-109.
[11]宋维锡. 金属学[M]. 北京: 冶金工业出版社, 1979: 128-129.
[12]Lu Hao An, Hans Conrad. Influence of an electric field charge during quench aging of a low-carbon steel[J]. Applied Physics Letters, 1991, 59(15): 1847.
[13]赵连城. 金属热处理原理[M]. 哈尔滨: 哈尔滨工业大学出版社, 1987: 196-198.

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