针状铁素体管线钢的低温韧性与“有效晶粒尺寸”的新定义

doi:10.13251/j.issn.0254-6051.2020.07.022

金属热处理 ›› 2020, Vol. 45 ›› Issue (7): 101-110.DOI: 10.13251/j.issn.0254-6051.2020.07.022

针状铁素体管线钢的低温韧性与“有效晶粒尺寸”的新定义

牛延龙¹, 刘岩松², 刘清友¹, 贾书君¹, 童帅¹, 汪兵¹

1. 钢铁研究总院工程用钢研究所, 北京 100081;
2. 本钢板材股份有限公司热连轧厂, 辽宁本溪 117000

收稿日期:2020-01-16 出版日期:2020-07-25 发布日期:2020-09-07
通讯作者: 刘清友, 教授, 博士, E-mail:771081320@qq.com
作者简介:牛延龙(1982—), 男, 高级工程师, 博士研究生, 主要研究方向为低合金钢韧性机理, E-mail:149541153@qq.com。
基金资助:
国家重点基础研究发展计划(2018YFC0310302)

Low temperature toughness of acicular ferrite pipeline steel and redefinition of “effective grain size”

Niu Yanlong¹, Liu Yansong², Liu Qingyou¹, Jia Shujun¹, Tong Shuai¹, Wang Bing¹

1. Institute for Engineering Steel, Central Iron and Steel Research Institute, Beijing 100081, China;
2. Hot Rolling Plant of Benxi Steel Plate Co., Ltd., Benxi Liaoning 117000, China

Received:2020-01-16 Online:2020-07-25 Published:2020-09-07

摘要/Abstract

摘要： 研究了试验钢的系列温度夏比冲击和落锤撕裂(DWTT)韧性性能,统计了沿解理裂纹扩展方向上的各种微观结构晶界的位向差角,计算了5个不同轧制方向上(0°、30°、45°、60°和90°)解理裂纹扩展路径上{100}解理面的夹角,重新定义了高等级针状铁素体试验钢的有效晶粒尺寸(晶界位相差大于15°),并定量分析了重新定义的有效晶粒尺寸和低温韧性性能(夏比冲击和DWTT)的关系。结果表明,不同方向上试验钢的微观组织相同,都是典型的针状铁素体(AF)+多边形铁素体(QF)+M/A岛。不同方向上大角度晶界都主要分布在45°~65°区间范围内。随着重新定义的有效晶粒尺寸(晶界间{100}解理面小于35°的晶粒组成的解理单元)的细化,5个方向的冲击吸收能量(ASTM A370-2017)和DWTT撕裂剪切面积均增大,而韧脆转变温度也随之降低。重新定义的有效晶粒晶界可以强烈阻碍解理断裂扩展,是断裂裂纹解理的有效组织单元。

关键词: 针状铁素体管线钢, 低温韧性, 晶粒尺寸, 解理单元, 裂纹扩展, 位向差角

Abstract: Toughness of the tested steel was investigated by series temperature charpy impact test and drop-weight tear test (DWTT),themisorientation angles of the grain boundaries of various microstructures along the cleavage crack propagation direction were statistized, and the angles between{100} cleavage planes on the cleavage crack propagation path were calculated in five rolling directions (0°, 30°, 45°, 60° and 90°).The effective grain size defined as grain with misorientation angle greater than 15° for high grade acicular ferritic pipeline steel was redefined as the size of cleavage units consisting of grains with {100}cleavage plane less than 35° between grain boundaries, and the quantitative influence of the redefined “effective grain size” on the low temperature toughness properties from Charpy impact test and DWTT were synthetically analyzed. The results show that the microstructure presents a typical acicular ferrite (AF) characteristic with somepolygonal ferrite (QF) and M-A islands, the distribution of high angel grain boundaries mainly distributes in the range of 45°-65° in different directions. The impact absorbed energy(ASTM A370-2017)and percent shear area of DWTT in the five directions increase with the refinement of the above redefined “effective grain size”, the ductile-brittle transition temperature also decreases with the refining of redefined “effective grain size”. The redefined effective grain boundaries can strongly hinder the fracture propagation, and thus the redefined “effective grain” can act as the effective microstructure unit for cleavage.

Key words: acicular ferrite pipeline steel, low temperature toughness, grain size, cleavage unit, crack propagation, misorientation angle

中图分类号:

TG142

牛延龙, 刘岩松, 刘清友, 贾书君, 童帅, 汪兵. 针状铁素体管线钢的低温韧性与“有效晶粒尺寸”的新定义[J]. 金属热处理, 2020, 45(7): 101-110.

Niu Yanlong, Liu Yansong, Liu Qingyou, Jia Shujun, Tong Shuai, Wang Bing. Low temperature toughness of acicular ferrite pipeline steel and redefinition of “effective grain size”[J]. Heat Treatment of Metals, 2020, 45(7): 101-110.

参考文献

[1]Shukla R, Ghosh S K, Chakrabarti D, et al. Microstructure, texture, property relationship in thermo-mechanically processed ultra-low carbon micro-alloyed steel for pipeline application[J]. Materials Science and Engineering A, 2013, 587: 201-208.
[2]Hwang B, Lee C G, Kim S J. Low temperature toughening mechanism in thermomechanical processed high strength low alloy steels[J]. Materials Science and Engineering A, 2011, 42: 717-728.
[3]Zhang Y Q, GuoA M, Shang C J, et al. Latest development and application of high strength and heavy gauge pipeline steel in China[J]. Journal of Mechanical Engineering, 2016, 6: 19-24.
[4]Xiao F R, Liao B, ShanY Y, et al. Challenge of mechanical properties of an acicular ferrite pipeline steel[J]. Materials Science and Engineering A, 2006, 431: 41-52.
[5]杨杰, 李春福, 申文竹. 针状铁素体形成的研究现状及应用前景[J]. 金属热处理, 2013, 38(2): 21-25.
Yang Jie, Li Chunfu, Shen Wenzhu. Research status and application propest of formation of acicular ferrite[J]. Heat Treatment of Metals, 2013, 38(2): 21-25.
[6]Joo M S, Suh D W, Bae J H, et al. Toughness anisotropy in X70 and X80 pipeline steels[J]. Materials Science and Engineering A, 2012, 556: 601-606.
[7]Jabr A, Speer H M, John G. Anisotropy of mechanical properties of API X70 spiral welded pipe steels[J]. Material Science Forum, 2013, 753: 538-541.
[8]Xiao F R, Liao B, Ren D L, et al. Acicular ferritic microstructure of a low-carbon Mn-Mo-Nb micro-alloyed pipeline steel[J]. Material Characterization, 2005, 54: 305-314.
[9]Sanchez N, PetrovR, BaeJ H, et al. Texture dependent mechanical anisotropy of X80 pipeline steel[J]. Advanced Engineering Materials, 2010, 12 : 973-980.
[10]Jung S B, Jae H S, Jin Y S, et al. Inoculated acicular ferrite microstructure and mechanical properties[J]. Materials Science and Engineering A, 2001, 319-321: 326-331.
[11]Yang X L, Xu Y B, Tan X D, et al. Influences of crystallography and delamination on anisotropy of charpy impact toughness in API X100 pipeline steel[J]. Materials Science and Engineering A, 2014, 607: 53-62.
[12]Cheng S X, Zhang X Y, Zhang J X, et al. Effect of coiling temperature on microstructure and properties of X100 pipeline steel[J]. Materials Science and Engineering A, 2016, 666: 156-164.
[13]张海, 李少坡, 丁文华, 等. 显微组织与晶体学织构对X80管线钢拉伸强度各向异性的影响[J]. 金属热处理, 2018, 48(2): 68-72.
Zhang Hai, Li Shaopo, Ding Wenhua, et al. Effects of microstructure and crystallographic texture on anisotropy of tensile strength of X80 pipeline steel[J]. Heat Treatment of Metals, 2018, 48(2): 68-72.
[14]Masoumi M, Silva C C, Abreu H F G, et al. Effect of rolling in the recrystallization temperature region associated with a post-heat treatment on the microstructure, crystal orientation, and mechanical properties of API 5L X70 pipeline steel[J]. Materials Research, 2017, 20(1):151-160.
[15]邓灿明, 李昭东, 孙新军, 等. 低碳板条马氏体钢中大角度界面对解理裂纹扩展的影响机理[J]. 机械工程材料, 2014, 38(6): 20-24.
Deng Chanming, Li Zhaodong, Sun Xinjun, et al. Influence mechanism of high angle boundary on propagation of cleavage cracks in low carbon lath martensite steel[J]. Materials for Mechanical Engineering, 2014, 38(6): 20-24.
[16]沈俊昶, 罗志俊, 杨才福, 等. 板条组织低合金钢中影响低温韧性的“有效晶粒尺寸”[C]//中国金属学会低合金钢分会第一届学术年会, 2012: 1-10.
[17]Yang X L, Xu Y B, Tan X D. Relationships among crystallographic texture, fracture behavior and Charpy impact toughness API X100 pipeline steel[J]. Materials Science and Engineering A, 2015, 641: 96-106.
[18]Zhao J, Hu W, Wang X, et al. Effect of microstructure on the crack propagation behavior of micro-alloyed 560 MPa (X80) strip during ultra-fast cooling[J]. Materials Science and Engineering A, 2016, 666: 214-224.
[19]崔桂彬, 鞠新华, 郭鹏, 等. X80管线钢中M/A岛的EBSD结构表征[J]. 电子显微学报, 2014, 33(5): 423-428.
Cui Guibin, Ju Xinhua, Guo Peng, et al. EBSD characterization on the structure of M/A islands of X80 pipeline steel[J]. Journal of Chinese Electron Microscopy Society, 2014, 33(5): 423-428.
[20]贾书君, 刘清友, 李拔. EBSD技术在厚规格管线钢DWTT研究中的应用[J]. 金属热处理, 2016, 41(4): 197-200.
Jia Shujun, Liu Qingyou, Li Ba. Application of EBSD technology on DWTT research of thickness specification pipeline steel[J]. Heat Treatment of Metals, 2016, 41(4): 197-200.
[21]张小立, 冯耀荣, 庄传晶, 等. 高钢级管线钢中有效晶粒尺寸及与CVN关系研究[J]. 材料工程, 2008, 7: 1-5.
Zhang Xiaoli, Feng Yaorong, Zhuang Chuanjing, et al. Study on effective particle size of high-grade pipeline steels and relationship between CVN[J]. Journal of Materials Engineering, 2008, 7: 1-5.
[22]艾芒, 杨镇, 王志文. 小孔试验法的起源、发展和应用[J]. 机械强度, 2004, 22(4): 279-282.
Ai Mang, Yang Zhen, Wang Zhiwen. Origination development and application of small punch test method[J]. Journal of Mechanical Strength, 2004, 22(4): 279-282.

针状铁素体管线钢的低温韧性与“有效晶粒尺寸”的新定义

Low temperature toughness of acicular ferrite pipeline steel and redefinition of “effective grain size”

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]	连轶博, 杨春雷, 王国栋, 宋威. 固溶处理对GH4080A高温合金微观组织的影响[J]. 金属热处理, 2022, 47(4): 46-52.
[2]	陈刚, 罗小兵, 柴锋, 杨才福, 张正延, 杨丽. 轧制加热温度对高强度低合金钢组织及冲击性能的影响[J]. 金属热处理, 2022, 47(4): 116-121.
[3]	宿鹏吉, 麻永林, 董丽丽, 杨雪峰. 磁场预退火处理对CGO钢组织与织构的影响[J]. 金属热处理, 2022, 47(4): 128-132.
[4]	杨劼, 任慧平, 刘宗昌. 15Cr12CuSiMoMn钢的奥氏体晶粒长大动力学[J]. 金属热处理, 2022, 47(2): 53-58.
[5]	代永娟, 武祥祥, 李佳坤, 国栋, 王波. 退火温度对Fe-24.38Mn-0.44C TWIP钢组织性能的影响[J]. 金属热处理, 2022, 47(2): 146-152.
[6]	邱旭扬帆, 杨卓越, 丁雅莉. 提高Cr-Ni-Mo-Ti马氏体时效不锈钢超低温韧性的固溶处理工艺[J]. 金属热处理, 2022, 47(1): 44-48.
[7]	李昂, 高坤元, 文胜平, 黄晖, 聂祚仁. 冷却条件对5E83铝合金搅拌摩擦焊接头组织与性能的影响[J]. 金属热处理, 2022, 47(1): 130-134.
[8]	强菲, 王文, 张婷, 杨娟, 蔡军, 王快社. Al-Zn-Mg-Cu铝合金厚板搅拌摩擦焊接头搅拌区微观组织[J]. 金属热处理, 2022, 47(1): 135-141.
[9]	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.
[10]	潘龙博, 储滔, 张硕, 江济, 程采金, 谢庆忠, 邢学强, 斯庭智. 30CrNi3MoV钢动态再结晶行为及其模型的构建[J]. 金属热处理, 2021, 46(7): 23-30.
[11]	王成, 郭宏丽, 孙健, 李德发. 淬火方式对Ti微合金化中碳钢组织和性能的影响[J]. 金属热处理, 2021, 46(6): 111-115.
[12]	邱旭扬帆, 杨卓越, 丁雅莉. 残留/逆转变奥氏体对改善高强度不锈钢-196 ℃超低温冲击性能的影响[J]. 金属热处理, 2021, 46(5): 71-74.
[13]	肖娜, 徐晓宁, 王益民, 孙永辉, 田勇. 回火温度对EH460级船用中厚钢板组织与强韧性的影响[J]. 金属热处理, 2021, 46(5): 81-86.
[14]	丁浩晨, 赵艳君, 苏原明, 王谢, 南权晖, 仇诚, 冯奕洁. 超快速加热退火下保温时间对5083铝合金组织及力学性能的影响[J]. 金属热处理, 2021, 46(4): 70-76.
[15]	杨波, 孙健, 郭宏丽. 控制冷却工艺对Ti微合金化中碳钢板组织和性能的影响[J]. 金属热处理, 2021, 46(4): 118-121.