Ti微合金化对耐火建筑钢组织和性能的影响

doi:10.13251/j.issn.0254-6051.2022.02.002

金属热处理 ›› 2022, Vol. 47 ›› Issue (2): 9-13.DOI: 10.13251/j.issn.0254-6051.2022.02.002

Ti微合金化对耐火建筑钢组织和性能的影响

张鹏程, 武会宾

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:2021-09-18 修回日期:2021-11-27 出版日期:2022-02-25 发布日期:2022-04-01
作者简介:张鹏程(1978—),男,工程师,博士,主要研究方向为高强、耐高温、耐磨、耐蚀等材料的开发与试验研究,E-mail:zhpch2008@163.com
基金资助:
国家自然科学基金(51774033)

Effect of Ti microalloying on microstructure and properties of fire-resistant construction steel

Zhang Pengcheng, Wu Huibin

Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China

Received:2021-09-18 Revised:2021-11-27 Online:2022-02-25 Published:2022-04-01

摘要/Abstract

摘要： 采用低Mo及Ti的复合微合金化,设计3种试验钢配以合理的控轧控冷工艺,成功开发出低成本460 MPa级耐火钢。力学性能测试及显微组织分析结果表明,控轧控冷后水冷,试验钢板获得耐火钢的理想组织:粒状贝氏体和M/A岛。随Ti含量的增加,3种试验钢的平均晶粒尺寸递减。3种试验钢的室温屈服强度都大于460 MPa,600 ℃保温3 h的高温屈服强度都大于307 MPa,具有良好的高温力学性能。在相变强化、析出强化、细晶强化及位错强化的共同作用下,不同Ti含量的试验钢获得了良好的高温力学性能。0.07%Ti含量试验钢的YS值(600 ℃屈服强度/室温屈服强度)为0.68,完全满足耐火钢的使用标准。

关键词: 耐火钢, Ti微合金化, 控轧控冷工艺, 显微组织, 力学性能

Abstract: Three kinds of tested steels were designed with low Mo and Ti multi-microalloying, and reasonable thermo-mechanical control process(TMCP) was explored. The low cost 460 MPa grade fire-resistant steel was successfully developed. Through the test of mechanical properties and microstructure analysis, the results show that the ideal microstructure of fire-resistant steel is obtained, which is granular bainite and M/A island. With the increase of Ti content, the average grain size of the tested steel decreases. The room temperature yield strength of the three tested steels are all higher than 460 MPa, and the yield strength at high temperature of 600 ℃ for 3 h is higher than 307 MPa, which indicates that the three tested steels all have excellent mechanical properties at high temperature. Under the combined action of phase transformation strengthening, precipitation strengthening, fine grain strengthening and dislocation strengthening, the tested steels with different Ti contents obtain good high temperature mechanical properties. Among them, the YS value (600 ℃ yield strength/room temperature yield strength) of the tested steel with 0.07% Ti is 0.68, which fully meets the using standard of fire-resistant steel.

Key words: fire-resistant steel, Ti microalloying, TMCP, microstructure, mechanical properties

中图分类号:

TG142

张鹏程, 武会宾. Ti微合金化对耐火建筑钢组织和性能的影响[J]. 金属热处理, 2022, 47(2): 9-13.

Zhang Pengcheng, Wu Huibin. Effect of Ti microalloying on microstructure and properties of fire-resistant construction steel[J]. Heat Treatment of Metals, 2022, 47(2): 9-13.

参考文献

[1]万荣春, 孙锋, 付立铭, 等. Nb对Q345低Mo耐火钢CCT曲线的影响[J]. 金属热处理, 2021, 46(2): 25-29.
Wan Rongchun, Sun Feng, Fu Liming, et al. Effect of Nb on CCT curves of Q345 low-Mo fire-resistant steel[J]. Heat Treatment of Metals, 2021, 46(2): 25-29.
[2]刘程鹏, 牟洪仲. 高层建筑用耐火钢的组织与性能[J]. 金属热处理, 2014, 39(5): 94-97.
Liu Chengpeng, Mou Hongzhong. Microstructure and properties of fire-resistant steel for high rise building[J]. Heat Treatment of Metals, 2014, 39(5): 94-97.
[3]Miyata K, Sawaragi Y. Effect of Mo and W on the phase stability of precipitates in low Cr heat resistant steels[J]. ISIJ International, 2001, 41(3): 281-289.
[4]Wan R, Sun F, Zhang L, et al. Development and study of high-strength low-Mo fire-resistant steel[J]. Materials & Design, 2012, 36: 227-232.
[5]Walp M S, Speer J G, Matlock D K. Fire-resistant steels[J]. Advanced Materials & Processes, 2004, 162(10): 34-36.
[6]Rancel L, Gomez M, Medina S F, et al. Measurement of bainite packet size and its influence on cleavage fracture in a medium carbon bainitic steel[J]. Materials Science & Engineering A, 2011, 530: 21-27.
[7]Qiu J A, Wu K M, Li J H, et al. Effect of silicon on ultra-low temperature toughness of Nb-Ti microalloyed cryogenic pressure vessel steels[J]. Materials Characterization, 2013, 83: 123-128.
[8]傅杰, 李光强, 于月光, 等. 基于纳米铁碳析出物的钢综合强化机理[J]. 中国工程科学, 2010, 13(1): 31-42.
Fu Jie, Li Guangqiang, Yu Yueguang, et al. Comprehensive strengthening mechanism of steel based on nano-scale cementite precipitates[J]. Strategic Study of CAE, 2010, 13(1): 31-42.
[9]王泽林, 王文仲, 郝森, 等. 建筑结构用耐火钢的耐火极限试验[J]. 钢结构, 2004, 19(4): 56-58.
Wang Zelin, Wang Wenzhong, Hao Sen, et al. Fire resistance test of fire resistant steel for building[J]. Steel Construction, 2004, 19(4): 56-58.
[10]段小雪, 李龙, 丁桦, 等. 建筑用耐火钢控轧控冷实验研究[J]. 塑性工程学报, 2003, 10(5): 93-96.
Duan Xiaoxue, Li Long, Ding Hua, et al. Study of controlled rolling and controlled cooling on fire-resistant steel for construction[J]. Journal of Plasticity Engineering, 2003, 10(5): 93-96.
[11]完卫国, 吴结才. 耐火钢的开发与应用综述[J]. 建筑材料学报, 2006(2): 60-66.
Wan Weiguo, Wu Jiecai. Review of research and applications of fire-resistant steel[J]. Journal of Building Materials, 2006(2): 60-66.
[12]彭云, 郑惠锦. 回火温度对低合金高强度贝氏体钢组织和性能的影响[J]. 材料热处理学报, 2017, 38(7): 114-119.
Peng Yun, Zheng Huijin. Effect of tempering temperature on microstructure and mechanical properties of high strength low alloy bainite steel[J]. Transactions of Materials Heat Treatment, 2017, 38(7): 114-119.
[13]李麟, 许珞萍. 钢中铌钒碳氮化合物的析出及其稳定性分析[J]. 上海金属, 2005(2): 1-3.
Li Lin, Xu Luoping. Precipitation of carbonitrides containing V and Nb in steel and their stability[J]. Shanghai Metals, 2005(2): 1-3.

[1]	张子延, 陈君, 陈晓亚, 李全安, 刘建鑫. 固溶时效处理对Mg-4Sm-3Gd-0.5Zr合金显微组织和耐蚀性能的影响[J]. 金属热处理, 2022, 47(4): 10-16.
[2]	梁恩溥, 徐乐, 杨勇, 王毛球. 添加Al、Cu对40CrNi3MoV钢组织和力学性能的影响[J]. 金属热处理, 2022, 47(4): 17-23.
[3]	祁晓亮, 李岩, 定巍, 赵增武. 含Al中锰TRIP钢原始组织对临界退火后组织与力学性能的影响[J]. 金属热处理, 2022, 47(4): 24-29.
[4]	陈保安, 张静媛, 祝志祥, 韩钰, 潘学东, 张磊, 陈素红. 化学成分对高强Al-Mg-Si合金组织和性能的影响[J]. 金属热处理, 2022, 47(4): 30-38.
[5]	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.
[6]	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.
[7]	骆再斌, 范子泽, 彭振. 轻质高熵合金的研究进展[J]. 金属热处理, 2022, 47(4): 100-107.
[8]	吕杰晟, 宋志刚, 何建国, 丰涵, 郑文杰, 朱玉亮. S32205双相不锈钢冷轧退火组织转变及强塑化机理分析[J]. 金属热处理, 2022, 47(4): 141-145.
[9]	王琪, 吴光亮. 回火温度对1100 MPa级高强钢组织与性能的影响[J]. 金属热处理, 2022, 47(4): 146-150.
[10]	孙凯, 陈研, 杨绍斌. 时效温度对激光选区熔化TC21钛合金微观组织及硬度的影响[J]. 金属热处理, 2022, 47(4): 155-158.
[11]	张骥俊, 邢彦锋, 曹菊勇. 超声振动对CMT电弧增材制造铝合金组织与性能的影响[J]. 金属热处理, 2022, 47(4): 159-164.
[12]	刘文彬, 乔龙阳, 潘新宇, 程格, 李爱娜, 裴新军. 淬火温度对刀剪用M390粉末冶金不锈钢组织和性能的影响[J]. 金属热处理, 2022, 47(4): 189-195.
[13]	王瑞琴, 葛鹏, 廖强, 侯鹏, 刘宇. 固溶冷却方式对短时用高温钛合金板材组织和性能的影响[J]. 金属热处理, 2022, 47(4): 196-198.
[14]	王绍灼, 孟晗, 王芬, 樊海卫, 李燕, 唐超. 改善低氧TC4-LC及重熔TC4钛合金性能的热处理工艺[J]. 金属热处理, 2022, 47(4): 204-207.
[15]	陈强, 陈林芳, 杨明华. 18CrNiMo7-6钢的可控气氛高温渗碳工艺[J]. 金属热处理, 2022, 47(4): 231-239.

Ti微合金化对耐火建筑钢组织和性能的影响

Effect of Ti microalloying on microstructure and properties of fire-resistant construction 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