HRB400E抗震螺纹钢静态CCT曲线测定及组织分析

doi:10.13251/j.issn.0254-6051.2022.09.033

金属热处理 ›› 2022, Vol. 47 ›› Issue (9): 188-193.DOI: 10.13251/j.issn.0254-6051.2022.09.033

HRB400E抗震螺纹钢静态CCT曲线测定及组织分析

骆艳萍¹, 汪家晗², 李沐泽¹, 张云祥², 周建勋³, 赵志恒²

1.中冶南方工程技术有限公司, 湖北武汉 430223;
2.武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室, 湖北武汉 430081;
3.武钢集团昆明钢铁股份有限公司, 云南安宁 650302

收稿日期:2022-05-27 修回日期:2022-07-03 发布日期:2022-10-18
作者简介:骆艳萍(1983—),女,高级工程师,硕士,主要研究方向为材料加工工程,E-mail:04118@wisdri.com
基金资助:
国家自然科学基金(51774219)

Static CCT curve measurement and microstructure analysis of HRB400E anti-seismic structural rebar

Luo Yanping¹, Wang Jiahan², Li Muze¹, Zhang Yunxiang², Zhou Jianxun³, Zhao Zhiheng²

1. WISDRI Engineering & Research Incorporation Limited,Wuhan Hubei 430223, China;
2. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
3. Wugang Group Kunming Iron and Steel Co. , Ltd. , Anning Yunnan 650302, China

Received:2022-05-27 Revised:2022-07-03 Published:2022-10-18

摘要/Abstract

摘要： 利用膨胀法在Gleeble-3500热模拟试验机上测定了HRB400E抗震螺纹钢的静态连续冷却转变(CCT)曲线,采用光学显微镜OM、扫描电镜SEM和显微维氏硬度仪观察和测定了不同冷却速度下钢的显微组织和硬度,分析了冷却速度对该钢相变组织与性能的影响。结果表明,当冷速在3 ℃/s以下时,试验钢中组织为铁素体和珠光体,随着冷速的提高,试验钢中珠光体含量逐渐提高,片层间距不断减小;当冷速为4~10 ℃/s时,试验钢中开始出现贝氏体组织;当冷速＞10 ℃/s时,试验钢开始发生马氏体相变;并且随着冷速的提高,试验钢的硬度逐渐提高。冷却速度为2~3 ℃/s范围内,试验钢中珠光体含量、片层间距和力学性能均满足GB/T 1499.2—2018中规定,其结果与现场生产性能检验结果相符。在冷速为3 ℃/s生产的ϕ8 mm盘螺成品试样的珠光体含量和片层间距分别为47%和0.184 μm,下屈服强度R_eL、抗拉强度R_m、强屈比R_m/R_eL、屈标比R_eL/R^s_eL、断后伸长率A、最大力总伸长率A_gt分别为440 MPa、569 MPa、1.29、1.10、27.2%和17.8%。

关键词: 抗震螺纹钢20MnSiV, CCT曲线, 冷却速率, 组织, 性能

Abstract: The static continuous cooling transformation (CCT)experiments for anti-seismic rebar steel HRB400E were conducted on Gleeble-3500 thermal simulation test machine by expansion method, The microstructure and hardness of the steel under different cooling rates were observed and measured by optical microscope (OM), scanning electron microscope (SEM) and micro-Vickers hardness tester, and the effect of cooling rate on the transformation structure and properties of the steel was analyzed. The results show that when the cooling rate is below 3 ℃/s, the microstructure of the tested steel is ferrite and pearlite. With the increase of cooling rate, the pearlite content in the tested steel increases gradually and the lamellar spacing decreases. Bainite appears in the tested steel when the cooling rate is 4-10 ℃/s. When the cooling rate is higher than 10 ℃/s, the tested steel begins to undergo martensitic transformation. With the increase of cooling rate, the hardness of the tested steel increases gradually. When the cooling rate is within the range of 2-3 ℃/s, the pearlite content, lamellar spacing and mechanical properties of the tested steel meet the technical requirements of the national standard GB/T 1499.2—2018. The experimental results are in good agreement with the mechanical properties of industrial products, in which, the pearlite content and lamellar spacing of the finished specimen of ϕ8 mm rebar at the cooling rate of 3 ℃/s are 47% and 0.184 μm respectively, and yield strength R_eL, tensile strength R_m, ratio of R_m/R_eL, ratio of R_eL/R^s_eL, fracture total elongation A and total elongation at maximum force A_gt are 440 MPa, 569 MPa, 1.29, 1.10, 27.2% and 17.8%, respectively.

Key words: anti-seismic structural rebar HRB400E, CCT curves, cooling rate, microstructure, properties

中图分类号:

TG151.3

骆艳萍, 汪家晗, 李沐泽, 张云祥, 周建勋, 赵志恒. HRB400E抗震螺纹钢静态CCT曲线测定及组织分析[J]. 金属热处理, 2022, 47(9): 188-193.

Luo Yanping, Wang Jiahan, Li Muze, Zhang Yunxiang, Zhou Jianxun, Zhao Zhiheng. Static CCT curve measurement and microstructure analysis of HRB400E anti-seismic structural rebar[J]. Heat Treatment of Metals, 2022, 47(9): 188-193.

参考文献

[1]王宁, 王雅姝. 高强钢筋在工程中应用的探讨[J]. 现代经济信息, 2018(5): 382-386.
Wang Ning, Wang Yashu. Discussion on the application of high strength reinforcement in engineering[J]. Modern Economic Information, 2018(5): 382-386.
[2]包卫平, 潘儒乾, 王瑞芳, 等. 20MnSi钢奥氏体连续冷却转变曲线[J]. 热加工工艺, 2009, 38(18): 34-36.
Bao Weiping, Pan Ruqian, Wang Ruifang, et al. Continuous cooling transformation curve of overcooling austenite for 20MnSi steel[J]. Hot Working Technology, 2009, 38(18): 34-36.
[3]陈其安, 陈颖, 黄原慧, 等. 生态钢筋对高级别热轧带肋钢筋研发的思考[C]//全国建筑钢筋生产, 设计与应用技术交流研讨会. 2009: 120-121.
Chen Qi'an, Chen Ying, Huang Yuanhui, et al. Eco Rebar-On the R＆D of hot rolled rebar with high strength grade[C]//National Symposium on the Production, Design and Application of Building Steel Bars. 2009: 120-121.
[4]马正洪, 张玺成, 钱萍, 等. 低锰HRB400E盘螺控冷机理分析[J]. 轧钢, 2015, 32(1): 79-81.
Ma Zhenghong, Zhang Xicheng, Qian Ping, et al. Mechanism analysis of controlled cooling for HRB400E rebar coil with lower Mn content[J]. Steel Rolling, 2015, 32(1): 79-81.
[5]曹建春, 叶亚平, 阴树标, 等. 铌微合金化抗震钢筋形变奥氏体连续冷却转变[J]. 钢铁, 2019, 54(12): 87-94.
Cao Jianchun, Ye Yaping, Yin Shubiao, et al. Deformed austenite continuous cooling transformation in Nb micro-alloyed anti-seismic rebar[J]. Iron and Steel, 2019, 54(12): 87-94.
[6]朱占涛, 张文俊. 盘螺生产中贝氏体组织产生的原因及预防措施[C]//2008, 214-215.
Zhu Zhantao, Zhang Wenjun. Causes and preventive measures of bainite formation in the production of rebar coil[C]//2008 National Small Section Steel Production Technology Exchange Meeting. 2008: 214-215.
[7]郭然, 王福明, 孙丽娟. HRB400热轧带肋钢筋冷弯断裂原因的分析[J]. 金属热处理, 2021, 46(10): 257-262.
Guo Ran, Wang Fuming, Sun Lijuan. Analysis on cause of cold bending fracture of HRB400 hot-rolled ribbed bar[J]. Heat Treatment of Metals, 2021, 46(10): 257-262.
[8]宋仲明, 焦辉, 朱正锋, 等. ZG25MnCrNi钢正火组织中贝氏体的形成原因及预防措施分析[J]. 铸造技术, 2015, 36(7): 1722-1724, 1730.
Song Zhongming, Jiao Hui, Zhu Zhengfeng, et al. Analysis of formation mechanisms and preventing methods of bainite in ZG25MnCrNi steel after normalizing treatment[J]. Foundry Technology, 2015, 36(7): 1722-1724, 1730.
[9]赵贤平, 邓深, 余轶峰, 等. 铌微合金化HRB400E高强钢筋CCT曲线测定及应用[J]. 中国冶金, 2019(8): 58-63.
Zhao Xianping, Deng Shen, Yu Yifeng, et al. Measurement and application of CCT curve of Nb microalloyed HRB400E high strength rebar[J]. China Metallurgy, 2019(8): 58-63.
[10]关大伟, 孙显东, 王彦武, 等. SG80链条用钢动态CCT曲线的研究[J]. 轧钢, 2014, 31(S1): 55-57.
Guan Dawei, Sun Xiandong, Wang Yanwu, et al. Research on SG80 steel CCT curve[J]. Steel Rolling, 2014, 31(S1): 55-57.
[11]崔忠圻, 刘北兴. 金属学与热处理原理[M]. 哈尔滨: 哈尔滨工业大学出版社, 2004.
[12]Gong W, Tomota Y, Adachi Y, et al. Effects of ausforming temperature on bainite transformation, microstructure and variant selection in nanobainite steel[J]. Acta Materialia, 2013, 61(11): 4142-4154.
[13]Morito S, Tanaka H, Konishi R, et al. The morphology and crystallography of lath martensite in Fe-C alloys[J]. Acta Materialia, 2003, 51(6): 1789-1799.

[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]	林凌峰, 袁鸽成, 杨濂, 丁灿培. 平均道次压下率对异步轧制-固溶6016铝合金板材显微组织的影响[J]. 金属热处理, 2022, 47(9): 36-40.
[5]	王璐, 王峰, 张明伟, 刘瑞, 傅正元, 刘景顺. 退火工艺对Ti-4Al-2V合金组织及耐蚀性能的影响[J]. 金属热处理, 2022, 47(9): 41-46.
[6]	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.
[7]	潘冉, 刘宝胜, 曾元松, 曲海涛, 王东, 慕延宏. 深冷处理对15%SiC_p/2009铝基复合材料组织与力学性能的影响[J]. 金属热处理, 2022, 47(9): 65-70.
[8]	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.
[9]	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.
[10]	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.
[11]	郭志凯, 连明洋, 卓兴建, 叶蕾, 曹培泽, 王超锋, 商秋月. 球化退火等温时间对高碳H13钢组织和性能的影响[J]. 金属热处理, 2022, 47(9): 103-107.
[12]	季德静, 杨维宇, 白雅琼. 高强韧工程机械用钢Q690D的淬火工艺优化[J]. 金属热处理, 2022, 47(9): 108-112.
[13]	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.
[14]	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.
[15]	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.

HRB400E抗震螺纹钢静态CCT曲线测定及组织分析

Static CCT curve measurement and microstructure analysis of HRB400E anti-seismic structural rebar

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