不同形变条件下非调质钢45MnSiVSQ的连续冷却转变

doi:10.13251/j.issn.0254-6051.2020.12.003

金属热处理 ›› 2020, Vol. 45 ›› Issue (12): 13-18.DOI: 10.13251/j.issn.0254-6051.2020.12.003

不同形变条件下非调质钢45MnSiVSQ的连续冷却转变

王云龙¹, 陈银莉², 余伟¹

1.北京科技大学工程技术研究院, 北京 100083;
2.北京科技大学钢铁共性技术协同创新中心, 北京 100083

收稿日期:2020-06-01 出版日期:2020-12-25 发布日期:2021-01-14
通讯作者: 余伟,研究员,E-mail:yuwei@nercar.ustb.edu.cn
作者简介:王云龙(1992—),男,博士研究生,主要研究方向为钢铁材料的组织调控及腐蚀性能;E-mail:wangyunlong1992@foxmail.com。

Continuous cooling transformation of non-quenched and tempered 45MnSiVSQ steel under different deformation conditions

Wang Yunlong¹, Chen Yinli², Yu Wei¹

1. Institute of Engineering and Technology, University of Science and Technology Beijing, Beijing 100083, China;
2. Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China

Received:2020-06-01 Online:2020-12-25 Published:2021-01-14

摘要/Abstract

摘要： 在Gleeble-3500热模拟机及热膨胀试验仪上测定了45MnSiVSQ钢动态及静态膨胀曲线,并采用切线法结合组织及硬度,测定了试验钢的静态和动态连续冷却转变(CCT)曲线,研究分析了形变温度和冷却速度对非调质钢45MnSiVSQ相变及珠光体片层间距的影响。结果表明:在0.1~3 ℃/s冷却速度范围内,珠光体片层间距随着冷却速度的增大而减小;对比950 ℃的动、静态CCT曲线可知,形变使试验钢相变起始温度有所升高,即相变孕育期缩短,其中对铁素体和珠光体相变区间影响尤为明显,而对贝氏体和马氏体相变区间孕育期的影响较小,表现为动态CCT曲线相比静态CCT曲线向左上方移动;对比不同形变温度下的动态CCT曲线可知,形变温度950 ℃时,贝氏体相变冷速区间为0.5~20 ℃/s,850 ℃形变时的贝氏体相变冷速区间为0.8~10 ℃/s。低温形变更利于铁素体和珠光体相变发生,减少了贝氏体、马氏体等非理想组织出现的机率。

关键词: 非调质钢45MnSiVSQ, 形变温度, 冷却速度, CCT曲线, 相变

Abstract: Dynamic and static dilatometric curves of non-quenched and tempered steel 45MnSiVSQ were measured on Gleeble-3500 thermal simulator and thermal dilatometer. The dynamic and static continuous cooling transformation (CCT) curves of the 45MnSiVSQ steel were measured by the tangent method combining with microstructure and hardness analysis, and the effects of deformation temperature and cooling rate on the phase transformation and the interlamellar spacing of the 45MnSiVSQ steel were investigated. The results show that as the cooling rate increases, the pearlite interlamellar spacing gradually decreases when the cooling rate is in the range of 0.1-3 ℃/s. Compared with the static and dynamic CCT curves of the 45 MnSiVSQ steel at 950 ℃, it can be seen that the deformation shortens the phase transformation incubation period especially in the ferrite and pearlite phase transformation range, but it has little effect on the incubation period in the bainite and martensite phase transformation zone, so that the dynamic CCT curves move to the upper left compared to the static CCT curves. By comparing the CCT curves at different deformation temperatures, it is found that bainite phase transformation occurs at 0.5-20 ℃/s when deformed at 950 ℃, while at 0.8-10 ℃/s when deformed at 850 ℃. Low temperature deformation is more conducive to the occurrence of ferrite and pearlite phase transformation, and reduces the probability of occurrence of non-ideal structures such as bainite and martensite.

Key words: non-quenched and tempered steel 45MnSiVSQ, deformation temperature, cooling rates, CCT curves, phase transformation

中图分类号:

TG142.1

王云龙, 陈银莉, 余伟. 不同形变条件下非调质钢45MnSiVSQ的连续冷却转变[J]. 金属热处理, 2020, 45(12): 13-18.

Wang Yunlong, Chen Yinli, Yu Wei. Continuous cooling transformation of non-quenched and tempered 45MnSiVSQ steel under different deformation conditions[J]. Heat Treatment of Metals, 2020, 45(12): 13-18.

参考文献

[1] 刘石虹, 王新华, 戴观文, 等. 高洁净度汽车用非调质钢中非金属夹杂物研究[J]. 钢铁, 2008, 43(5): 35-39.
Liu Shihong, Wang Xinhua, Dai Guanwen, et al.Investigation on non-metallic inclusions in hot forming steels of high cleanliness[J]. Iron and Steel, 2008, 43(5): 35-39.
[2] 陈蕴博, 马炜, 金康. 强韧微合金化非调质钢的研究动向[J]. 机械工程材料, 2001, 25(3): 1-6.
Chen Yunbo, Ma Wei, Jin Kang.Development on improving the strength & toughness of microalloyed steels[J]. Materials for Mechanical Engineering, 2001, 25(3): 1-6.
[3] 王小宁, 方刚, 李阳, 等. 汽车用非调质钢的应用现状与发展[J]. 汽车工艺与材料, 2014(9): 52-58.
Wang Xiaoning, Fang Gang, Li Yang, et al.Resent progress of non-quenched and tempered steel for automotive sheet[J]. Automobile Technology and Material, 2014(9): 52-58.
[4] 严超峰, 包耀宗, 王欢锐, 等. 重型汽车半轴用非调质钢的应用进展[J]. 金属加工(热加工), 2018(2): 3-8.
[5] 张黄强. 合金钢CCT 曲线研究[D]. 武汉: 武汉科技大学, 2008.
Zhang Huangqiang.Study on continuous cooling transformation diagrams of alloy steels[D]. Wuhan: Wuhan University of Science and Technology, 2008.
[6] 杨叠, 杨柳青, 隋永莉, 等. X80 钢管环焊缝连续冷却转变曲线研究[J]. 机械制造文摘(焊接分册), 2016, 12(3): 14-19.
Yang Die, Yang Liuqing, Sui Yongli, et al.Research on CCT curves of X80 pipeline girth weld[J]. Jixie Zhizao Wenzhai(Hanjie Fence), 2016, 12(3): 14-19.
[7] 李文亚, 杨维宇. 一种空冷贝氏体钢连续冷却转变曲线的测定[J]. 包钢科技, 2016, 42(5): 55-57.
Li Wenya, Yang Weiyu.Determination of CCT curves of one kind of air-cooling bainite steel[J]. Science and Technology of Baotou Steel(Group) Corporation, 2016, 42(5): 55-57.
[8] 陈涛, 赵爱民, 樊红亮, 等. 65MnCr耐磨钢的连续冷却曲线和相变规律[J]. 材料热处理学报, 2016, 37(9): 144-150.
Chen Tao, Zhao Aimin, Fan Hongliang, et al.Continuous cooling curve and phase transformation behavior of wear resistant steel 65MnCr[J]. Transactions of Materials and Heat Treatment, 2016, 37(9): 144-150.
[9] 张金, 刘丰收, 俞喆. 贝氏体钢轨钢连续冷却转变曲线的测定及分析[J]. 热加工工艺, 2016, 45(4): 84-86.
Zhang Jin, Liu Fengshou, Yu Zhe.Determination and analysis of CCT curves of bainite steel used in rail steel[J]. Hot Working Technology, 2016, 45(4): 84-86.
[10] 肖国华, 王福明, 李长荣, 等. 铌钒微合金化高强度船板钢的连续冷却转变规律[J]. 北京科技大学学报, 2008, 30(5): 495-500.
Xiao Guohua, Wang Fuming, Li Changrong, et al.Continuous cooling transformation of Nb-V-microalloyed high-strength hull steel[J]. Journal of University of Science and Technology Beijing, 2008, 30(5): 495-500.
[11] 宋维锡. 金属学[M]. 北京: 冶金工业出版社, 2007.
[12] 丁华, 刘雅政, 张立芬. 工艺参数对60Si2Mn A 钢高速线材相变规律的影响[J]. 北京科技大学学报, 2001, 23(1): 28-31.
Ding Hua, Liu Yazheng, Zhang Lifeng.Effect of processing parameters on phase transition rules of high speed rolled wire of 60Si2MnA steel[J]. Journal of University of Science and Technology Beijing, 2001, 23(1): 28-31.
[13] 李箭, 孙福玉. 奥氏体形变及冷却速率对γ→α相形变核的影响[J]. 钢铁研究总院学报, 1988(1): 92-93.
Li Jian, Sun Fuyu.Effect of austenite deformation and cooling rate on the nucleation of γ→α transformation[J]. Journal of Iron and Steel Research, 1988(1): 92-93.

[1]	陈连生, 张露友, 田亚强, 杨子旋, 李红斌, 潘红波, 魏英立. 低碳高强舰船用钢的CCT曲线及其组织性能[J]. 金属热处理, 2022, 47(4): 63-68.
[2]	王云龙, 余伟, 张昳, 史佳新, 李明辉. 奥氏体化温度对贝氏体钢等温转变及力学性能的影响[J]. 金属热处理, 2022, 47(4): 80-85.
[3]	宁静, 高坤元, 李浩楠, 文胜平, 黄晖, 吴晓蓝, 魏午, 聂祚仁. 成分和冷却速度对Al-xEr合金凝固组织的影响[J]. 金属热处理, 2022, 47(3): 151-154.
[4]	王英虎, 郑淮北, 白青青, 宋令玺, 姚斌, 王利伟. 无磁钻铤用Cr-Mn-Ni-N系高氮钢平衡凝固相变与析出行为[J]. 金属热处理, 2022, 47(3): 173-180.
[5]	郭亚洲, 宋宁宏, 倪雷, 凌华, 毕文珍, 韦习成. B1800HS热成形钢组织转变的JMatPro计算和试验研究[J]. 金属热处理, 2022, 47(3): 239-244.
[6]	马启林, 刘刚, 郑健, 阴树标, 李拔, 刘清友. Nb-V复合微合金化高钢级管线钢的奥氏体连续冷却转变[J]. 金属热处理, 2022, 47(1): 13-18.
[7]	吕金峄, 张义伟, 罗小兵, 袁晓敏. 含铜钢奥氏体连续冷却组织转变特性的原位观察[J]. 金属热处理, 2022, 47(1): 19-24.
[8]	朱赫男, 陈刚, 杨佳伟, 张志建. Ti微合金化对22MnB5热成形钢组织和性能的影响[J]. 金属热处理, 2022, 47(1): 125-129.
[9]	蔡著文, 李玲, 沈俞涛, 吴晓春. 热处理工艺对4Cr3Mo2Si1V钢组织与性能的影响[J]. 金属热处理, 2022, 47(1): 226-232.
[10]	杜鹏举, 吴迪. 中锰钢中原奥氏体晶粒尺寸对马氏体相变的影响[J]. 金属热处理, 2021, 46(9): 21-27.
[11]	张楠, 李岩, 定巍. 0.2C-5Mn-0.5Si-2.5Al中锰钢临界退火后的微观组织及力学性能[J]. 金属热处理, 2021, 46(7): 37-42.
[12]	张梅, 孙国胜, 秦岽烊, 杜林秀. 冷轧304不锈钢的马氏体逆相变及奥氏体再结晶行为[J]. 金属热处理, 2021, 46(7): 51-55.
[13]	王凌旭, 何锦航, 孙博, 白洁, 王勇, 邓凤淋, 曹长胜, 梁宇. Q355NH钢的CCT曲线及早期耐蚀性能[J]. 金属热处理, 2021, 46(7): 84-88.
[14]	霍喜伟. Cr对20MnSiV门架型钢动态CCT曲线和性能的影响[J]. 金属热处理, 2021, 46(7): 89-93.
[15]	霍建生, 阎冬. 700 MPa级高强度耐候钢过冷奥氏体连续冷却相变行为[J]. 金属热处理, 2021, 46(7): 94-97.

不同形变条件下非调质钢45MnSiVSQ的连续冷却转变

Continuous cooling transformation of non-quenched and tempered 45MnSiVSQ steel under different deformation conditions

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