张鹤松,康永林,唐兴昌

• 1:北京科技大学材料科学与工程学院
• 2:材料先进制备技术教育部重点实验室
• 3:酒钢集团碳钢薄板厂

摘要(Abstract)：

通过微合金化与控轧控冷技术的有机结合,在Nb-Ti微合金化X100管线钢中形成了大量纳米尺寸的析出粒子,对其形貌进行了观测分析,对组织中的析出粒子尺寸分布及其析出强化作用进行了定量分析,通过动力学计算分析了Nb(C,N)在奥氏体中的析出规律。结果表明:高级别管线钢中的析出相主要有两种类型,Nb(C,N)析出(1~30 nm)和(Ti,Nb)(C,N)复合析出(50~300 nm),均为面心立方结构;X100管线钢析出强化贡献值约为70 MPa;对Nb-Ti微合金化管线钢中Nb(C,N)析出的动力学计算表明,在热连轧生产线生产高级别管线钢时,热轧过程中碳氮化物析出不到10%,90%均在随后的冷却过程中析出,在中厚板生产线生产级高级别管线钢时,热轧过程中碳氮化物析出近70%,其余30%主要在随后的冷却过程中析出。

关键词(KeyWords)： 管线钢;微合金化;纳米析出;强化机制;析出规律

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划(863计划)(2013AA031601);; 国家“十二五”科技支撑计划(2012BAF04B01)

作者(Author): 张鹤松,康永林,唐兴昌

DOI: 10.13289/j.issn.1009-6264.2015.11.024

参考文献(References)：

• [1]牛涛,康永林,顾宏伟,等.高级别X80/X100管线钢的包辛格效应[J].北京科技大学学报,2010,32(9):1144-1149.NIU Tao,KANG Yong-lin,GU Hong-wei.Bauschinger effect of high grade X80/X100 pipeline steels[J].Journal of University of Science and Technology Beijing,2010,32(9):1144-1149.
• [2]薄艳艳,康永林,唐兴昌.回火温度对X100管线钢组织和性能的影响[C]//第十二届全国塑性工程学术年会第四届全球华人塑性加工技术研讨会论文集,重庆,2011,527-531.
• [3]解家英,王凤琴,宁林新,等.X80管线钢中Nb元素析出规律的研究[J].钢铁研究学报,2010,22(9):38-42.XIE Jia-ying,WANG Feng-qin,NING Lin-xin,et al.Research on precipitated rule of Nb in X80 pipeline steel[J].Journal of Iron and Steel Research,2010,22(9):38-42.
• [4]王莹,赵征志,朱涛.X100高强度管线钢的组织与力学性能[J].材料热处理学报,2012,33(11):117-121WANG Ying,ZHAO Zheng-zhi,ZHU Tao.Microstructure and mechanical property of X100 high strength pipeline steel[J].Transactions of Materials and Heat Treatment,2012,33(11):117-121.
• [5]NIU Tao,KANG Yong-lin,GU Hong-wei,et al.Effect of Nb on dynamic recrystallization behavior of high grade pipeline steels[J].International Journal of Minerals,Metallurgy and Materials,2010,17(6):742-747.
• [6]TANG Xing-chang,KANG Yong-lin,BO Yan-yan.Effect of finish rolling temperature on microstructure and mechanical properties of high grade pipeline steel[J].Journal of Iron and Steel Research International,2011(S1):625-628.
• [7]阮红志,赵征志,赵爱民,等.高钢级X100管线钢的组织和析出相[J].材料热处理学报,2013,34(1):43-48.RUAN Hong-zhi,ZHAO Zheng-zhi,ZHAO Ai-min,et al.Microstructure and precipitates of X100 pipeline steel[J].Transactions of Materials and Heat Treatment,2013,34(1):43-48.
• [8]曹建春,雍岐龙,刘清友,等.含铌钼钢中微合金碳氮化物沉淀析出及其强化机制[J].材料热处理学报,2006,27(5):51-55.CAO Jian-chun,YONG Qi-long,LIU Qing-you,et al.Microalloy carbonitride precipitation in Ni-Mo steel and the strengthening mechanism[J].Transactions of Materials and Heat Treatment,2006,27(5):51-55.
• [9]Glandman T.Precipitation hardening in metals[J].Material Science and Technology,1999,15(1):30-36.
• [10]方芳,雍岐龙,杨才福,等.(C,N)在V-N微合金钢铁素体中的析出动力学[J].金属学报,2009(5):625-629.FANG Fang,YONG Qi-long,YANG Cai-fu,et al.Precipitating kinetics of V(C,N)in ferrite of V-N microalloying steel[J].Acta Metallugica Sinica,2009(5):625-629.
• [11]彭宁琦,唐广波,刘正东,等.热连轧过程复合微合金碳氮化物析出的定量计算[J].材料热处理学报,2011,32(6):155-161.PENG Ning-qi,TANG Guang-bo,LIU Zheng-dong,et al.Quantitative calculation on precipitation behavior of complex microalloyed carbonitride during hot rolling[J].Transactions of Materials and Heat Treatment,2011,32(6):155-161.
• [12]霍向东,毛新平,吕盛夏,等.CSP生产Ti微合金化高强钢中纳米碳化物[J].北京科技大学学报,2011(8):941-946.HUO Xiang-dong,MAO Xin-ping,LSheng-xia,et al.Nanocarbides in Ti-microalloyed high strength steel produced by CSP process[J].Journal of University of Science and Technology Beijing,2011(8):941-946.
• [13]赵冬伟,曹建春,周晓龙,等.变形Nb-Mo钢中碳氮化物在奥氏体中的析出[J].材料热处理学报,2012,33(05),91-94.ZHAO Dong-wei,CAO Jian-chun,ZHOU Xiao-long,et al.Carbonitride precipitation in austenite of a deformed Nb-Mo microalloyed steel[J].Transactions of Materials and Heat Treatment,2012,33(05),91-94.
• [14]雍岐龙.钢铁材料中的析出相[M].北京:冶金工业出版社,2006.

文章评论(Comment)：