临界退火冷却方式对含铌中锰钢奥氏体稳定性和力学性能的影响

doi:10.13251/j.issn.0254-6051.2022.11.003

金属热处理 ›› 2022, Vol. 47 ›› Issue (11): 20-24.DOI: 10.13251/j.issn.0254-6051.2022.11.003

临界退火冷却方式对含铌中锰钢奥氏体稳定性和力学性能的影响

赵帅¹, 宋仁伯¹, 张宇², 霍巍丰¹, 王永金¹, 王鑫玮¹, 陈星翰¹

1.北京科技大学材料科学与工程学院, 北京 100083;
2.鞍钢集团北京研究院有限公司, 北京 102209

收稿日期:2022-06-01 修回日期:2022-09-05 出版日期:2022-11-25 发布日期:2023-01-04
通讯作者: 宋仁伯,教授,博士,E-mail:songrb@mater.ustb.edu.cn
作者简介:赵帅(1996—),男,博士研究生,主要研究方向为中锰钢高温力学性能、热处理工艺和强韧化机制等,E-mail:D202110220@xs.ustb.edu.cn。
基金资助:
国家自然科学基金(52074033)

Effect of cooling method of intercritical annealing process on austenite stability and mechanical properties of Nb-containing medium Mn steel

Zhao Shuai¹, Song Renbo¹, Zhang Yu², Huo Weifeng¹, Wang Yongjin¹, Wang Xinwei¹, Chen Xinghan¹

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Ansteel Beijing Research Institute Co., Ltd, Beijing 102209, China

Received:2022-06-01 Revised:2022-09-05 Online:2022-11-25 Published:2023-01-04

摘要/Abstract

摘要： 针对含铌中锰钢进行了不同退火温度(700、750和800 ℃)和不同冷却方式(空冷、水冷)下的临界退火试验。结果表明,随着临界退火温度的升高,强塑积和残留奥氏体含量呈现先升高再降低的趋势。在750 ℃临界退火水冷后,试验钢的力学性能最佳,屈服强度达到750 MPa,抗拉强度为1820 MPa,断后伸长率为13.9%。随着临界退火温度升高,试验钢中渗碳体逐渐溶解,基体中C和Mn含量增多,在保温过程中配分进入奥氏体的C和Mn含量增多,导致奥氏体更稳定,残留奥氏体含量增多。当临界退火温度进一步升高,保温时奥氏体含量的增多导致配分进入奥氏体的C和Mn浓度降低,导致奥氏体稳定性降低,在冷却过程中形成大量马氏体。马氏体的增多和大尺寸团簇状(Nb,Mo)C的析出导致800 ℃临界退火后试验钢的高强度和低塑性。在相同临界退火温度下,水冷和空冷后试验钢的相组成相同。在800 ℃临界退火时,两种冷却方式对残留奥氏体含量和力学性能引起的差异最为明显,这与空冷过程中C和Mn向奥氏体配分更充分有关。

关键词: 含铌中锰钢, 临界退火, 冷却方式, 奥氏体稳定性, 力学性能

Abstract: Experiments of intercritical annealing at different temperatures (700 ℃, 750 ℃ and 800 ℃) and cooling methods (air cooling and water quenching) were carried out for a Nb-containing medium Mn steel. The results show that the product of strength and elongation and the content of retained austenite increase first and then decrease with the increase of intercritical annealing temperature. When intercritical annealed at 750 ℃, the mechanical properties of the tested steel are the best, with the yield strength of 750 MPa, the tensile strength of 1820 MPa, and the elongation after fracture of 13.9%. As the intercritical annealing temperature increases, the dissolution of cementite promotes the increase of C and Mn contents in the matrix, and the content of C and Mn partitioning into austenite increases during heat preservation process, making the austenite more stable and the retained austenite content increasing. When the intercritical annealing temperature continues to increase, the increase of austenite content during heat preservation leads to the decrease of C and Mn partitioning into austenite, which leads to the decrease of austenite stability and the formation of a large amount of martensite during cooling. The increase of martensite content and the precipitation of large-sized clusters of (Nb, Mo)C lead to high strength and low ductility of the tested steel annealed at 800 ℃. At the same intercritical annealing temperature, the phase composition of the water cooled and air cooled tested steels is the same. At the intercritical annealing temperature of 800 ℃, the differences of the two cooling methods on the retained austenite content and mechanical properties are the most obvious, which is related to the more sufficient partitioning of C and Mn into austenite during air cooling.

Key words: Nb-containing medium Mn steel, intercritical annealing, cooling method, austenite stability, mechanical properties

中图分类号:

TG161

赵帅, 宋仁伯, 张宇, 霍巍丰, 王永金, 王鑫玮, 陈星翰. 临界退火冷却方式对含铌中锰钢奥氏体稳定性和力学性能的影响[J]. 金属热处理, 2022, 47(11): 20-24.

Zhao Shuai, Song Renbo, Zhang Yu, Huo Weifeng, Wang Yongjin, Wang Xinwei, Chen Xinghan. Effect of cooling method of intercritical annealing process on austenite stability and mechanical properties of Nb-containing medium Mn steel[J]. Heat Treatment of Metals, 2022, 47(11): 20-24.

参考文献

[1]刘倩, 郑小平, 张荣华, 等. 新型汽车用高强度中锰钢研究现状及发展趋势[J]. 材料导报, 2019, 33(7): 1215-1220.
Liu Qian, Zheng Xiaoping, Zhang Ronghua, et al. Medium manganese high strength steel for automotive application: Status quo and prospects[J]. Materials Reports, 2019, 33(7): 1215-1220.
[2]徐娟萍, 付豪, 王正, 等. 中锰钢的研究进展与前景[J]. 工程科学学报, 2019, 41(5): 557-572.
Xu Juanping, Fu Hao, Wang Zheng, et al. Research progress and prospect of medium manganese steel[J]. Chinese Journal of Engineering, 2019, 41(5): 557-572.
[3]米俊龙, 贾涓, 李建, 等. Mn含量对中锰钢Q&P工艺组织及性能的影响[J]. 材料热处理学报, 2019, 40(12): 106-111.
Mi Junlong, Jia Juan, Li Jian, et al. Effect of Mn content on microstructure and properties of medium manganese steel treated by Q&P process[J]. Transactions of Materials and Heat Treatment, 2019, 40(12): 106-111.
[4]金学军, 龚煜, 韩先洪, 等. 先进热成形汽车钢制造与使用的研究现状与展望[J]. 金属学报, 2020, 56(4): 411-428.
Jin Xuejun, Gong Yu, Han Xianhong, et al. A review of current state and prospect of the manufacturing and application of advanced hot stamping automobile steels[J]. Acta Metallurgica Sinica, 2020, 56(4): 411-428.
[5]Dai Z, Chen H, Ding R, et al. Fundamentals and application of solid-state phase transformations for advanced high strength steels containing metastable retained austenite[J]. Materials Science and Engineering: R, 2021, 143: 100590.
[6]Ma Y, Sun B, Schökel A, et al. Phase boundary segregation-induced strengthening and discontinuous yielding in ultrafine-grained duplex medium-Mn steels[J]. Acta Materialia, 2020, 200: 389-403.
[7]胡斌, 屠鑫, 王玉, 等. 中锰钢塑性失稳现象的研究进展及未来研究展望[J]. 工程科学学报, 2020, 42(1): 48-59.
Hu Bin, Tu Xin, Wang Yu, et al. Recent progress and future research prospects on the plastic instability of medium-Mn steels: A review[J]. Chinese Journal of Engineering, 2020, 42(1): 48-59.[8]阳锋. 高强塑积中锰钢组织调控与变形特征研究[D]. 北京: 钢铁研究总院, 2018.
[9]史文杰, 魏茂源. 淬火-配分钢中残留奥氏体的演变及其对性能的影响[J]. 金属热处理, 2019, 44(6): 47-50.
Shi Wenjie, Wei Maoyuan. Evolution of retained austenite in quenching and partitioning steel and its influence on mechanical properties[J]. Heat Treatment of Metals, 2019, 44(6): 47-50.
[10]Hu B, Shen X, Guo Q, et al. Yielding behavior of triplex medium Mn steel alternated with cooling strategies altering martensite/ferrite interfacial feature[J]. Journal of Materials Science and Technology, 2022, 126: 60-70.
[11]Hu B, Luo H, Yang F, et al. Recent progress in medium-Mn steels made with new designing strategies, a review[J]. Journal of Materials Science and Technology, 2017, 33(12): 1457-1464.
[12]Liu D, Ding H, Hu X, et al. Dynamic recrystallization and precipitation behaviors during hot deformation of a κ-carbide-bearing multiphase Fe-11Mn-10Al-0.9C lightweight steel[J]. Materials Science and Engineering: A, 2020, 772: 138682.
[13]Hu J, Cao W, Wang C, et al. Austenite stability and its effect on the ductility of the cold-rolled medium-Mn steel[J]. ISIJ International, 2014, 54(8): 1952-1957.
[14]Kang S, De Moor E, Speer J G. Retained austenite stabilization through solute partitioning during intercritical annealing in C-, Mn-, Al-, Si-, and Cr-alloyed steels[J]. Metallurgical and Materials Transactions A, 2014, 46(3): 1005-1011.
[15]Gibbs P J, De Moor E, Merwin M J, et al. Austenite stability effects on tensile behavior of manganese-enriched-austenite transformation-induced plasticity steel[J]. Metallurgical and Materials Transactions A, 2011, 42(12): 3691-3702.
[16]Birosca S, Liu G, Ding R, et al. The dislocation behaviour and GND development in a nickel based superalloy during creep[J]. International Journal of Plasticity, 2019, 118: 252-268.

临界退火冷却方式对含铌中锰钢奥氏体稳定性和力学性能的影响

Effect of cooling method of intercritical annealing process on austenite stability and mechanical properties of Nb-containing medium Mn steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王志文, 杨荣东, 黄元春, 李辉. 时效处理对挤压成型2195铝锂合金组织和力学性能的影响[J]. 金属热处理, 2022, 47(9): 6-11.
[2]	高星, 张宁, 丁燕, 蒋波. 热处理时间对激光选区成形TC4钛合金组织及力学性能的影响[J]. 金属热处理, 2022, 47(9): 12-17.
[3]	夏朋昭, 许莹, 蔡艳青, 赵思坛, 娄冰洁. 微波烧结工艺对Ti-Mg复合材料组织和性能的影响[J]. 金属热处理, 2022, 47(9): 18-26.
[4]	李磊, 朱旭军, 张丽, 田福政. 喷丸直径对GH4169合金性能和损伤演化的影响[J]. 金属热处理, 2022, 47(9): 47-53.
[5]	张浩泽, 王隽生, 宫鹏辉, 詹海艺, 王凯. 热处理对EB铸锭直接轧制TC4合金板材组织和力学性能的影响[J]. 金属热处理, 2022, 47(9): 71-78.
[6]	钟立伟, 冯朝辉, 高文理, 陈军洲, 陆政. 多轴锻造与T852热处理对Al-Cu-Li合金组织及力学性能的影响[J]. 金属热处理, 2022, 47(9): 79-86.
[7]	肖结良, 孙浩, 李飞, 胡平, 陈旌钢, 江兆峰. 球墨铸铁行走轮的低温正火工艺[J]. 金属热处理, 2022, 47(9): 98-102.
[8]	温方明, 郝晓博, 曹恒, 张强, 李渤渤, 刘茵琪. 热处理工艺对N06600合金热轧板组织与性能的影响[J]. 金属热处理, 2022, 47(9): 113-118.
[9]	艾兵权, 邝霜, 田秀刚, 杨峰, 王玉慧, 逯志强, 王朝, 郝雷. 均热温度对不同成分980 MPa级高强钢组织和性能的影响[J]. 金属热处理, 2022, 47(9): 119-124.
[10]	王世凯, 王睿, 康燕, 于志强, 闫志杰. 淬火温度对Cr5MoVNi钢组织和性能的影响[J]. 金属热处理, 2022, 47(9): 125-129.
[11]	熊维亮, 梁文, 吴腾, 梁亮, 吴浩鸿. 控冷工艺对热轧双相钢组织与性能的影响[J]. 金属热处理, 2022, 47(9): 130-133.
[12]	张玉成, 贾浩梅. 固溶处理对Incoloy825合金钢管组织和性能的影响[J]. 金属热处理, 2022, 47(9): 134-139.
[13]	范朝, 程宗辉, 张志强. 激光热输入对激光增材修复1Cr17Ni2不锈钢组织与力学性能的影响[J]. 金属热处理, 2022, 47(9): 140-145.
[14]	李颖, 彭霜, 张婷, 柴象海, 翁依柳. 选区激光熔化制备Ti-6Al-4V合金的热处理工艺及力学性能[J]. 金属热处理, 2022, 47(9): 175-181.
[15]	谯德高, 罗晓阳, 胡双喜, 侯园园, 张志坚, 唐兴昌. 280VK冷轧高强钢退火过程的组织演变及析出机理[J]. 金属热处理, 2022, 47(9): 220-226.