Cr-Mo-Nb-Ti-B系1180 MPa级复相钢的性能稳定性

doi:10.13251/j.issn.0254-6051.2022.09.032

金属热处理 ›› 2022, Vol. 47 ›› Issue (9): 182-187.DOI: 10.13251/j.issn.0254-6051.2022.09.032

Cr-Mo-Nb-Ti-B系1180 MPa级复相钢的性能稳定性

田秀刚, 刘靖宝, 邝霜

河钢集团唐钢公司技术中心, 河北唐山 063001

收稿日期:2022-05-07 修回日期:2022-07-13 发布日期:2022-10-18
通讯作者: 刘靖宝,高级工程师,博士,E-mail:liu_jing_bao@163.com
作者简介:田秀刚(1986—),男,高级工程师,硕士,主要研究方向为汽车、家电板研发与生产,E-mail:tian123.tian@163.com。

Performance stability of 1180 MPa complex phase steel in Cr-Mo-Nb-Ti-B series

Tian Xiugang, Liu Jingbao, Kuang Shuang

Technical Center, Hesteel Group Tangsteel Company, Tangshan Hebei 063001, China

Received:2022-05-07 Revised:2022-07-13 Published:2022-10-18

摘要/Abstract

摘要： 设计开发了Cr-Mo-Nb-Ti-B系1180 MPa级高强复相钢产品。从组织控制的角度引入了贝氏体,以弥补铁素体与马氏体之间的软硬相高强度差,采用Gleeble-3500热模拟试验机、拉伸试验机和光学显微镜研究连续退火工艺中均热温度和过时效温度对复相钢力学性能及组织的影响规律。结果表明,均热温度在720~840 ℃时,随着温度的升高,贝氏体和马氏体含量逐渐增加,抗拉强度和屈服强度整体上不断提升,但超过840 ℃后抗拉和屈服强度降低。而随过时效温度的升高,抗拉强度呈单调递减趋势,屈服强度先波动后逐渐降低。当均热温度为790 ℃、过时效温度为280 ℃时,连退板的组织为铁素体、贝氏体和马氏体的复相组织,复相钢具备良好的加工成形性,折弯性、扩孔性能也均较同级别双相钢产品有大幅提升。

关键词: 超高强钢, 复相钢, 退火工艺, 性能稳定性, 成形性

Abstract: A 1180 MPa high strength complex phase steel in Cr-Mo-Nb-Ti-B series was designed and developed. From the perspective of microstructure control, bainite was introduced to make up for the high strength difference between the soft and hard phases between ferrite and martensite, the effects of soaking temperature and overaging temperature on mechanical properties and microstructure of the complex phase steel during continuous annealing were studied by means of Gleeble-3500 thermal simulation test machine, tensile test machine and optical microscope. The results show that when the soaking temperature is from 720 ℃ to 840 ℃, the bainite and martensite contents gradually increase with the increase of temperature, and the tensile strength and yield strength increase continuously as a whole, but the tensile strength and yield strength decrease when the temperature exceeds 840 ℃. With the increase of overaging temperature, the tensile strength decreases monotonically, and the yield strength fluctuates at first and then decreases gradually. When the soaking temperature is 790 ℃ and the overaging temperature is 280 ℃, the microstructure of the continuous annealed plate is a complex phase structure of ferrite, bainite and martensite, which makes the steel have better formability, the bending property and hole-expanding property are also greatly improved compared with the same grade dual-phase steel products.

Key words: ultra high strength steel, complex phase steel, annealing process, performance stability, formability

中图分类号:

TG142.1

田秀刚, 刘靖宝, 邝霜. Cr-Mo-Nb-Ti-B系1180 MPa级复相钢的性能稳定性[J]. 金属热处理, 2022, 47(9): 182-187.

Tian Xiugang, Liu Jingbao, Kuang Shuang. Performance stability of 1180 MPa complex phase steel in Cr-Mo-Nb-Ti-B series[J]. Heat Treatment of Metals, 2022, 47(9): 182-187.

参考文献

[1]熊自柳, 齐建军, 孙力, 等. 高强度双相钢的成形性能[J]. 金属热处理, 2021, 46(5): 66-71.
Xiong Ziliu, Qi Jianjun, Sun Li, et al. Formability of high strength dual phase steels[J]. Heat Treatment of Metals, 2021, 46(5): 66-71.
[2]田亚强, 王安东, 郑小平, 等. 不同前驱体的贝氏体/铁素体复相钢的组织和性能[J]. 金属热处理, 2018, 43(4): 97-101.
Tian Yaqiang, Wang Andong, Zheng Xiaoping, et al. Microstructure and properties of bainite/ferrite multiphase steel with different precursor structures[J]. Heat Treatment of Metals, 2018, 43(4): 97-101.
[3]张爱文, 郑磊. 成分及冷却工艺对复相钢、马氏体钢组织与性能的影响[J]. 钢铁, 2006, 41(10): 64-68.
Zhang Aiwen, Zheng Lei. Effect of chemical composition and cooling process on microstructure and mechanical properties of multiphase steel and martensite steel[J]. Iron and Steel, 2006, 41(10): 64-68.
[4]黄海冰, 白秉哲, 冯勇, 等. 铌、钛微合金化仿晶界型铁素体／粒状贝氏体复相钢的形变诱导铁素体相变的研究[J]. 金属热处理, 2006(s1): 124-129.
Huang Haibing, Bai Bingzhe, Feng Yong, et al. Study on deformation induced ferrite transformation of the grain boundary allotriomorphic ferrite/granular bainite (F_GBA/Bg) and Nb-Ti microalloyed duplex steel[J]. Heat Treatment of Metals, 2006(s1): 124-129.
[5]Lee H B, Lee H H, Song Y B, et al. Influence of chronological control of transformation on the microstructure and mechanical properties of complex phase steels[J]. Scripta Materialia, 2021, 200: 113892.
[6]庞卓锐, 付立铭, 索忠源, 等. 双相区轧制对铁素体/马氏体双相钢组织性能的影响[J]. 金属热处理, 2020, 45(9): 37-41.
Pang Zhuorui, Fu Liming, Suo Zhongyuan, et al. Effect of intercritical rolling on microstructure and mechanical properties of ferrite/martensite dual-phase steel[J]. Heat Treatment of Metals, 2020, 45(9): 37-41.
[7]杨玉厚, 邝霜, 齐秀美, 等. 980 MPa级复相钢热处理工艺优化及组织性能研究[J]. 中国金属通报, 2021(7): 21-22.
[8]严立新, 梁亮, 吴浩鸿, 等. 轧制工艺对800 MPa复相钢组织性能的影响[J]. 轧钢, 2020, 37(6): 11-15.
Yan Lixin, Liang Liang, Wu Haohong, et al. Effect of rolling process on microstructure and properties of 800 MPa complex phase steel[J]. Steel Rolling, 2020, 37(6): 11-15.
[9]王建平, 杨志刚, 白秉哲, 等. 奥氏体形变对仿晶界型铁素体/粒状贝氏体复相钢组织和强韧性能的影响[J]. 金属学报, 2004, 40(3): 263-269.
Wang Jianping, Yang Zhigang, Bai Bingzhe, et al. Influence of austenite deformation on the microstructure strength and toughness of the grain boundary allotriomorphic ferrite/granular baintie (F_GAB/GB) duplex steel[J]. Acta Metallurgica Sinica, 2004, 40(3): 263-269.
[10]章立群, 刘自成, 刘东雨, 等. Mn系贝氏体/马氏体复相钢的研究及应用进展[J]. 金属热处理, 2006, 31(12): 2-6.
Zhang Liqun, Liu Zicheng, Liu Dongyu, et al. Research and application progress of Mn-series bainite/martensite muItiphase steels[J]. Heat Treatment of Metals, 2006, 31(12): 2-6.

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Cr-Mo-Nb-Ti-B系1180 MPa级复相钢的性能稳定性

Performance stability of 1180 MPa complex phase steel in Cr-Mo-Nb-Ti-B series

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