含B钒微合金钢的连续冷却相变行为

doi:10.12068/j.issn.1005-3026.2015.06.006

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (6): 780-785.DOI: 10.12068/j.issn.1005-3026.2015.06.006

含B钒微合金钢的连续冷却相变行为

金光秀，高彩茹，杜林秀

(东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819)

收稿日期:2014-04-30 修回日期:2014-04-30 出版日期:2015-06-15 发布日期:2015-06-11
通讯作者: 金光秀
作者简介:金光秀(1975- )，男，朝鲜金策工业综合大学讲师，东北大学博士研究生；杜林秀(1962-)，男，河北滦县人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(2011BAE25B03).

Phase Transformation Behaviors of Boron-Vanadium Microalloyed Steels During the Continuous Cooling

KIM Kwang-su， GAO Cai-ru， DU Lin-xiu

State Key Laboratory of Rolling and Automation，Northeastern University，Shenyang 110819，China.

Received:2014-04-30 Revised:2014-04-30 Online:2015-06-15 Published:2015-06-11
Contact: GAO Cai-ru
About author:-
Supported by:
-

摘要/Abstract

摘要： 为开发一种新的低成本高性能含B钒微合金钢和建立其TMCP生产工艺，用MMS-200热力模拟试验机研究了实验钢在连续冷却条件下的相变规律，绘制出实验钢的静态CCT曲线和动态CCT曲线.结果表明:微量的B提高了钒微合金钢过冷奥氏体稳定性，促进了针状铁素体形成，在比较宽的冷却速度范围内能得到贝氏体组织；未变形钢相比于变形钢，在更低的冷却速度甚至0.5℃/s的冷却速度下能得到大部分的贝氏体组织，但两者在5℃/s以上的冷却速度下都得到全部贝氏体组织；变形降低了奥氏体稳定性，促进铁素体转变，含硼钢铁素体转变存在的冷速升高到2℃/s，不含硼钢的其冷速升高到15℃/s；钒微合金钢中B有利于获得高强度的贝氏体组织，冷速5℃/s以上时相变后含硼钢的硬度都高于变形及未变形不含硼钢的硬度.

关键词: 连续冷却相变, 钒微合金钢, 含硼钢, 贝氏体转变, 显微组织

Abstract: In order to develop a low cost and high performance boron-vanadium microalloyed steel and establish its TMCP process， the transformation mechanism of the test steel under continuous cooling was studied and the static and dynamic CCT curves of the test steel were also obtained by means of MMS-200 thermo-mechanical simulator. The results showed that， by addition of the trace boron， the stability of overcooling austenite of the vananium microalloyed steel was increased， and the formation of acicular ferrite was promoted， while the bainite can be obtained under wider cooling rates. Compared to the deformed steel， bainite was the major microstructure which obtained in the undeformed steel under the very slow cooling rate even only 0.5℃/s， but when the cooling rate was higher than 5℃/s， fully bainite was obtained in both the deformed and undeformed steels. The stability of austenite was reduced and the formation of the ferrite was promoted by deformation， thus ferrite transformation proceeded under cooling rate lower than 2℃/s and 15℃/s in the boron steel and non-boron steel， respectively. For vanadium microalloyed steel， boron is beneficial to obtaining high strength bainite， therefore when the cooling rate is higher than 5℃/s， Vickers hardness of boron steel is higher than that of non-boron steel under deformed and undeformed status.

Key words: continuous cooling transformation, vanadium microalloyed steel, boron steel, bainite transformation, microstructure

中图分类号:

TG142.1

金光秀，高彩茹，杜林秀. 含B钒微合金钢的连续冷却相变行为[J]. 东北大学学报:自然科学版, 2015, 36(6): 780-785.

KIM Kwang-su， GAO Cai-ru， DU Lin-xiu. Phase Transformation Behaviors of Boron-Vanadium Microalloyed Steels During the Continuous Cooling[J]. Journal of Northeastern University Natural Science, 2015, 36(6): 780-785.

参考文献

[1]Wang M X，He X L.Effect of boron addition on structure and properties of low carbon bainitic steels［J］.ISIJ International，2002，42(sup):38-46.
[2]Jun H J，Kang J S，Seo D H，et al.Effects of deformation and boron on microstructure and continuous cooling transformation in low carbon HSLA steel［J］.Materials Science and Engineering A，2006，422 (2):157-162.
[3]Deva A，Jha B K.Influence of boron on strain hardening behaviour and ductility of low carbon hot rolled steel ［J］.Materials Science and Engineering A，2011，528 (3):7375-7380.
[4]Kyung C C，Dong J M.Effect of niobium and titanium addition on the hot ductility of boron containing steel ［J］.Materials Science and Engineering A，2011，528 (3):3556-3561.
[5]颜慧成，曹慧泉.钛、铌、硼对低碳贝氏体钢组织与性能的影响［J］.钢铁研究学报，2010，22 (5):55-58.(Yan Hui-cheng，Cao Hui-quan.Influence of Ti，Nb and B on microstructure and mechanical properties of low carbon bainitic steel［J］.Journal of Iron and Steel Research，2010，22 (5):55-58.)
[6]许洪新，李文卿.微量元素钛和硼对20MVnB钢淬透性的影响［J］.钢铁，1991，26 (3):46-50. (Xu Hong-xin，Li Wen-qing.Influence of trace elements Ti and B on hardenability of 20MVnB steel ［J］.Iron and Steel，1991，26 (3):46-50.)
[7]Luo Y，Wu X C，Wang H B.A comparative study on non-quenched and quenched prehardened steel for large section plastic mould ［J］.Journal of Materials Processing Technology，2009，209 (1):5437-5442.
[8]Wei Y，Lin Z.Change of tensile behavior of a high-strength low-alloy steel with tempering temperature［J］.Materials Science and Engineering A，2009，517 (2):369-374.
[9]Mohamed Z.Hot ductility behavior of vanadium containing steels ［J］.Materials Science and Engineering A，2002，326 (2):255-260.
[10]Siwecki T，Eliasson J，Lagneborg R.Vanadium microalloyed bainitic hot strip steels［J］.ISIJ International，2010，50 (5):760-767.(上接第779页)图6相关性得分对比Fig.6The comparative results of correlation score5结语本文提出了一种面向探索式搜索过程的查询推荐方法，即根据用户搜索的行为模式，通过试探性查询重构和确认性查询重构两个过程，对探索式搜索过程进行建模，并根据影响探索式搜索过程的三种因素提出了一种rank算法，将确认性子查询中的查询推荐给当前用户.对比实验结果表明本文提出的方法能够推荐出更具有指导性的查询.

[1]	董艳伍，彭飞，田家龙，姜周华. 时效对10Ni10Mn2CuAl钢组织及性能的影响[J]. 东北大学学报（自然科学版）, 2022, 43(5): 646-651.
[2]	宋红宇，刘海涛，王国栋. 薄带连铸取向硅钢的热轧孪生行为[J]. 东北大学学报（自然科学版）, 2022, 43(2): 182-187.
[3]	高彩茹，屈兵兵，田余东，杜林秀. 回火温度对在线淬火Q690q桥梁钢显微组织和力学性能的影响[J]. 东北大学学报（自然科学版）, 2021, 42(7): 927-933.
[4]	毕梦园，谢仁义，张艺凡，衣海龙. CoCrFeNi高熵合金组织演变规律及再结晶动力学[J]. 东北大学学报（自然科学版）, 2021, 42(7): 933-938.
[5]	朱成林，高秀华，王明明，宋丽英. 淬火温度对12Cr14Ni2不锈结构钢组织及力学性能的影响[J]. 东北大学学报（自然科学版）, 2021, 42(6): 781-788.
[6]	鲍君峰，于月光，贾成厂. ZrO₂添加量对等离子放电烧结制备WC-6Co组织和性能的影响[J]. 东北大学学报（自然科学版）, 2021, 42(1): 43-48.
[7]	王明明，高秀华，杜林秀，张大征. V-N微合金化X80抗大变形管线钢的组织与力学性能[J]. 东北大学学报:自然科学版, 2020, 41(6): 801-806.
[8]	李彦龙，吴琼，秦晓峰，刘常升. Cr5支承辊接触疲劳损伤及其次表层组织变化[J]. 东北大学学报:自然科学版, 2020, 41(6): 818-823.
[9]	张志强，何长树，赵夙，赵骧. 7075-T6合金超声辅助搅拌摩擦焊接头搅拌区组织与力学性能[J]. 东北大学学报:自然科学版, 2020, 41(12): 1708-1714.
[10]	陈洁，李长生，李坤，涂兴洋. Fe-Mn-1.6Ni-C水电用钢板轧后直接淬火和回火工艺[J]. 东北大学学报:自然科学版, 2019, 40(7): 956-961.
[11]	王晓晖，康健，袁国，王国栋. 等温处理过程热轧TRIP钢残余奥氏体的分解行为[J]. 东北大学学报:自然科学版, 2019, 40(1): 32-37.
[12]	刘静，刘逸婷. 激光快速成型TC4合金显微组织及力学性能[J]. 东北大学学报:自然科学版, 2018, 39(8): 1132-1136.
[13]	冯祥利，王磊，刘杨. 热输入对Q460钢焊接接头组织及拉伸变形行为的影响[J]. 东北大学学报:自然科学版, 2018, 39(4): 511-515.
[14]	李振垒，陈冬，康健，袁国. 在线控冷对热轧L360管线管组织和性能的影响[J]. 东北大学学报:自然科学版, 2018, 39(11): 1588-1592.
[15]	王利卿，孙世能，任玉平，秦高梧. Mg，Ca元素对可降解Zn合金组织性能影响[J]. 东北大学学报:自然科学版, 2018, 39(1): 35-39.

含B钒微合金钢的连续冷却相变行为

Phase Transformation Behaviors of Boron-Vanadium Microalloyed Steels During the Continuous Cooling

RichHTML

PDF (PC)

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