等温时间对中碳贝氏体钢组织与性能的影响

doi:10.13251/j.issn.0254-6051.2025.11.042

金属热处理 ›› 2025, Vol. 50 ›› Issue (11): 294-300.DOI: 10.13251/j.issn.0254-6051.2025.11.042

等温时间对中碳贝氏体钢组织与性能的影响

刘欢¹, 耿如明², 韩顺², 厉勇², 王春旭², 许莹¹

1.华北理工大学冶金与能源学院, 河北唐山 063210;
2.钢铁研究总院有限公司特殊钢研究院, 北京 100081

收稿日期:2025-06-11 修回日期:2025-09-04 发布日期:2025-12-16
通讯作者: 许莹,教授,博士,E-mail:xuying9969@ncst.edu.cn
作者简介:刘欢(2000—),男,硕士研究生,主要研究方向为超高强度钢,E-mail:lh20240601@163.com。
基金资助:
国家重点研发计划(2022YFB3705200)

Effect of austempering time on microstructure and properties of a medium carbon bainitic steel

Liu Huan¹, Geng Ruming², Han Shun², Li Yong², Wang Chunxu², Xu Ying¹

1. School of Metallurgy and Energy, North China University of Science and Technology, Tangshan Hebei 063210, China;
2. Research Institute of Special Steels, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China

Received:2025-06-11 Revised:2025-09-04 Published:2025-12-16

摘要/Abstract

摘要： 对新型中碳贝氏体钢进行275 ℃等温+冷处理+回火处理,采用扫描电镜(SEM)、透射电镜(TEM)、电子背散射衍射(EBSD)、拉伸试验机和冲击试验机进行测试和表征,研究贝氏体等温时间对其组织和性能的影响。结果表明,不同等温时间下,回火后试验钢组织均为马氏体、贝氏体和残留奥氏体。随着等温时间的延长,马氏体含量减少,贝氏体含量增加,残留奥氏体的体积分数和其中碳含量先降低后升高。随着等温时间的延长,试验钢抗拉强度和屈服强度逐渐下降,断后伸长率和断面收缩率逐渐升高,冲击吸收能量则先下降后升高。在等温60 min时,强塑积最高,达到22.31 GPa·%,冲击吸收能量最大,为(27±4.3) J,材料性能最佳。

关键词: 中碳贝氏体钢, 等温时间, 微观组织, 力学性能

Abstract: A new medium-carbon bainitic steel was subjected to austempering at 275 ℃, followed by cold treatment and tempering. The effect of austempering time on the microstructure and properties was tested and characterized by using scanning electron microscope (SEM), transmission electron microscope (TEM), electron backscatter diffraction (EBSD), tensile testing machine and impact testing machine. The results show that the microstructure of the steel after tempering consists of martensite, bainite and retained austenite under different austempering time. As the austempering time increases, the martensite content decreases, the bainite content increases, and the volume fraction and carbon content of retained austenite first decrease and then increase. The tensile strength and yield strength of the steel gradually decrease with the increase of austempering time, while the elongation and percentage reduction of area gradually increase, and the impact absorbed energy first decreases and then increases. After austempering for 60 min, the maximum strength plastic product reaches 22.31 GPa·%, and the maximum impact absorbed energy is (27±4.3) J, indicating the best mechanical properties.

Key words: medium-carbon bainite steel, austempering time, microstructure, mechanical properties

中图分类号:

TG156.1

刘欢, 耿如明, 韩顺, 厉勇, 王春旭, 许莹. 等温时间对中碳贝氏体钢组织与性能的影响[J]. 金属热处理, 2025, 50(11): 294-300.

Liu Huan, Geng Ruming, Han Shun, Li Yong, Wang Chunxu, Xu Ying. Effect of austempering time on microstructure and properties of a medium carbon bainitic steel[J]. Heat Treatment of Metals, 2025, 50(11): 294-300.

参考文献

[1] Caballero F G, Bhadeshia H, Mawella K, et al. Design of novel high strength bainitic steels: Part 1[J]. Materials Science and Technology, 2001, 17(5): 512-516.
[2] Nawaz B, Long X Y, Yang Z N, et al. Effect of magnetic field on microstructure and mechanical properties of austempered 70Si3MnCr steel[J]. Materials Science and Engineering A, 2019, 759: 11-18.
[3] Kumar A, Singh A. Deformation mechanisms in nanostructured bainitic steels under torsion[J]. Materials Science and Engineering A, 2020, 770: 138528.
[4] Dijk N H, Butt A M, Zhao L, et al. Thermal stability of retained austenite in TRIP steels studied by synchrotron X-ray diffraction during cooling[J]. Acta Materialia, 2005, 53(20): 5439-5447.
[5] Knijf D D, Petrov R, Föjer C, et al. Effect of fresh martensite on the stability of retained austenite in quenching and partitioning steel[J]. Materials Science and Engineering A, 2014, 615: 107-115.
[6] 刘曼, 徐光, 周明星, 等. 等温温度和时间对超级贝氏体钢Fe-0.40C-2.2Mn-1.5Si相变和组织性能的影响[J]. 武汉科技大学学报, 2017, 40(5): 345-350.
Liu Man, Xu Guang, Zhou Mingxing, et al. Effects of isothermal temperature and holding time on phase transformation, microstructure and properties of super bainitic steel Fe-0.40C-2.2Mn-1.5Si[J]. Journal of Wuhan University of Science and Technology, 2017, 40(5): 345-350.
[7] 王晓晖, 康健, 李振垒, 等. 等温时间对低硅含铝热轧TRIP钢组织性能的影响[J]. 钢铁, 2019, 54(5): 54-59.
Wang Xiaohui, Kang Jian, Li Zhenlei, et al. Effect of isothermal time on microstructures and mechanical properties in hot rolled TRIP steels with low Si and more Al[J]. Iron and Steel, 2019, 54(5): 54-59.
[8] Luo P, Gao G, Zhang H, et al. On structure-property relationship in nanostructured bainitic steel subjected to the quenching and partitioning process[J]. Materials Science and Engineering A, 2016, 661: 1-8.
[9] Varshney A, Sangal S, Pramanick A K, et al. On the extent of transformation of austenite to bainitic ferrite and carbide during austempering of high Si steel for prolonged duration and its effect on mechanical properties[J]. Materials Science and Engineering A, 2020, 793: 139764.
[10] Klemm-Toole J, Benz J, Vieira I, et al. Strengthening mechanisms influenced by silicon content in high temperature tempered martensite and bainite[J]. Materials Science and Engineering A, 2020, 786: 139419.
[11] Kong J, Xie C. Effect of molybdenum on continuous cooling bainite transformation of low-carbonmicroalloyed steel[J]. Materials and Design, 2006, 27(10): 1169-1173.
[12] Cullity B D. Elements of X-Ray Diffraction[M]. New York: Addison-Wesley, 1978.
[13] Xiong X C, Chen B, Huang M X, et al. The effect of morphology on the stability of retained austenite in a quenched and partitioned steel[J]. Scripta Materialia, 2013, 68(5): 321-324.
[14] Oliveira P G B D, Aureliano R T J, Casteletti L C, et al. Effect of low-temperature austempering and quenching and partitioning treatments on adhesive wear resistance of high-silicon multiphase steels[J]. Journal of Materials Engineering and Performance, 2020, 29(6): 3542-3550.
[15] 李伟, 秦羽满, 王艳辉, 等. 低温贝氏体转变对渗碳纳米贝氏体轴承钢表层组织与性能的影响[J]. 燕山大学学报, 2021, 45(1): 25-32.
Li Wei, Qin Yuman, Wang Yanhui, et al. Effects of low temperature bainite transition on surface structureand properties of carburized nano-bainite bearing steel[J]. Journal of Yanshan University, 2021, 45(1): 25-32.
[16] Acharya P P, Udupa R, Bhat R. Microstructure and mechanical properties of austempered AISI 9255 high-silicon steel[J]. Materials Science and Technology, 2017, 34(3): 355-365.

等温时间对中碳贝氏体钢组织与性能的影响

Effect of austempering time on microstructure and properties of a medium carbon bainitic steel

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