凝固组织对高强耐蚀管带状缺陷的影响

doi:10.13228/j.boyuan.issn0449-749x.20190279

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (16379 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract As-cast spot segregation is the origin of banded defects in oil tube products,which will be harmful to the corrosion resistance of the tubes in service. The influence of solidified structure on the large banded defects in hot rolled and QT tubes was studied based on the C110 steel for controlling the banded defects. The results show that the spot segregation exists in the center equiaxed crystal region,which has a fine secondary dendritic structure but with severe speckle like segregation. The spot segregation will be inherited into the hot rolled tubes and appear as wide band defects. Such banded defects are difficult to remove by heat treatment and therefore inherited into the final QT products. Reducing the equiaxed crystal zone in the round castings is beneficial to control the formation and growth of the spot segregation,thereby significantly reducing the large band defects in the hot rolled and QT tubes. The hardness measurement results show that the hardness uniformity of both hot rolled and QT tubes can be obviously improved with the decrease of the as-cast center equiaxed crystal area.

Key words： oil tube solidification structure spot segregation banded defect hardness

Received: 20 June 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Bo
	YANG Fei-fei
	LIU Hua-song
	LUO Ming
	ZHANG Zhong-hua
	ZHANG Jia-quan

Cite this article:

LI Bo,YANG Fei-fei,LIU Hua-song等. Effect of solidification structure on banded defects of high strength corrosion resistant tubes[J]. Iron and Steel, 2020, 55(3): 87-95.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190279 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I3/87

[1] 许晓锋,李为卫,赵晓姣,等. 含H₂S油气井用C110钢级套管标准化最新进展[J]. 钢管,2011,40(3):62. (XU Xiao-feng,LI Wei-wei,ZHAO Xiao-jiao,et al. Recent progress in standardization of C110 casings for services in H₂S-containing oil/gas wells[J]. Steel Pipe,2011,40(3):62.)
[2] 赵鹏,潘存强,黄子阳. C110钢级套管标准详解[J]. 世界钢铁,2009,9(6):68. (ZHAO Peng,PAN Cun-qiang,HUANG Zi-yang. Standard analysis of C110 casing[J]. World Iron and Steel,2009,9(6):68.)
[3] Urband B E,Morey S. High strength sour service C110 casing[C]//SPE/IADC Drilling Conference and Exhibition 1999. Amsterdam:Society of Petroleum Engineers(SPE),1999:14.
[4] Tsay L W,Chi M Y,Chen H R,et al. Investigation of hydrogen sulfide stress corrosion cracking of PH 13-8 Mo stainless steel[J]. Materials Science and Engineering A,2006,416(1-5):155.
[5] 赵明纯,单以银,李玉海,等. 显微组织对管线钢硫化物应力腐蚀开裂的影响 [J]. 金属学报,2001,37(10):1087. (ZHAO Ming-chun,SHAN Yi-yin,LI Yu-hai,et al. Effect of microstructure on sulfide stress corrosion cracking of pipeline steels[J]. Acta Metallurgica Sinica,2001,37(10):1087.)
[6] 吕祥鸿,赵国仙,王宇,等. 低铬抗硫套管的H₂S/CO₂腐蚀行为研究[J]. 钢铁研究学报,2010,22(7):23. (LÜ Xiang-hong,ZHAO Guo-xian,WANG Yu,et al. Study on H₂S/CO₂ corrosion behaviors of low-Cr acid resistant casing steel[J]. Journal of Iron and Steel Research,2010,22(7):23.)
[7] Omura T,Kobayashi K. Hydrogen embrittlement of OCTG and linepipes[J]. Zairyo-to-Kankyo,2011,60(4):90.
[8] ZHANG Z H,LIU M,LIU Y H,et al. A systematical analysis with respect to multiple hydrogen traps influencing sulfide stress cracking behavior of API-5CT-C110 casing steel[J]. Materials Science and Engineering A,2018,721:81.
[9] Vollmer L W. The behavior of steels in hydrogen sulfide environments[J]. Corrosion,1958,14(7):38.
[10] Tsuchida Y,Sugawara I,Miyahara S,et al. Semi-macro segregation in continuously cast slab[J]. Transactions of the Iron and Steel Institute of Japan,1982,22(9):265.
[11] Oh K S,Chang Y W. Macro and microscopic segregation behavior of center segregations in high carbon steel CC blooms during the final stage of solidification[J]. Process Technology,1995,13:381.
[12] Tsuchida Y,Nakada M,Sugawara I,et al. Behavior of semi-macroscopic segregation in continuously cast slabs and technique for reducing the segregation[J]. Transactions of the Iron and Steel Institute of Japan,1984(11),24:899.
[13] 许志刚,王新华,黄福祥,等. 管线钢连铸板坯的半宏观偏析和凝固组织 [J]. 北京科技大学学报,2014,36(6):751. (XU Zhi-gang,WANG Xin-hua,HUANG Fu-xiang,et al. Solidification structure and semi-macrosegregation of pipeline steel continuous casting slabs [J]. Journal of University of Science and Technology Beijing,2014,36(6):751.)
[14] JI Y,HE Q. Effect of dendritic structure on the spot segregation of continuously cast round bloom[C]//AISTech 2017-Proceedings of the Iron and Steel Technology Conference. Nashiville:Association for Iron and Steel Technology(AISTECH),2017:2599.
[15] 王长顺,郭福建,李广龙,等. 中心偏析控制对型钢低温韧性的影响[J]. 钢铁,2019,54(8):202. (WANG Chang-shun,GUO Fu-jian,LI Guang-long,et al. Influence of central segregation control on low temperature toughness of steel[J]. Iron and Steel,2019,54(8):202.)
[16] 刘海宁,王郢,李仁兴,等. PMO凝固均质化技术在20CrMn-Ti齿轮钢上的应用[J]. 钢铁,2019,54(6):69. (LIU Hai-ning,WANG Ying,LI Ren-xing,et al. Application of pulse magneto-oscillation homogenization technique on continuous casting of 20CrMnTi gear steel[J]. Iron and Steel,2019,54(6):69.)
[17] 陈亮,宋波,陈天明,等. 45钢连铸大方坯中心疏松与缩孔控制[J]. 钢铁,2018,53(8):49. (CHEN Liang,SONG Bo,CHEN Tian-ming,et al. Control countermeasures of center porosity and shrinkage in 45 steel continuous casting bloom[J]. Iron and Steel,2018,53(8):49.)
[18] Preβlinger H,Mayr M,Tragl E,et al. Assessment of the primary structure of slabs and the influence on hot-and cold-rolled strip structure[J]. Steel Research International,2006,77(2):107.
[19] 纪元,闵云峰,李鹏善,等. 钢中带状组织及其研究现状[J]. 中国冶金,2016,26(4):1.(JI Yuan,MIN Yun-feng,LI Peng-shan,et al. Research status of banding phenomena in steels[J]. China Metallury,2016,26(4):1.)
[20] Verhoeven J D. A review of microsegregation induced banding phenomena in steels[J]. Journal of Materials Engineering and Performance,2000,9(3):286.
[21] Krauss G. Solidification,segregation,and banding in carbon and alloy steels[J]. Metallurgical and Materials Transactions B,2003,34(6):781.
[22] 赵宜娜,陈银莉,余伟,等. 退火对齿轮钢枝晶偏析及元素扩散的影响[J]. 钢铁,2019,54(2):60. (ZHAO Yi-na,CHEN Yin-li,YU Wei,et al. Effect of annealing on dendritic segregation and elemental diffusion of gear steel billet[J]. Iron and Steel,2019,54(2):60.)
[23] 陈宇,刘宏亮,宋涛. 热轧带状组织对冷轧双相钢组织性能的影响[J]. 轧钢,2019,36(5):23. (CHEN Yu,LIU Hong-liang,SONG Tao. Effect of hot rolled banded structure on microstructure and properties of cold rolled dual-phase steel[J]. Steel Rolling,2019,36(5):23.)
[24] 李博,张忠铧,刘华松,等. 高强耐蚀管钢点状偏析及带状缺陷的特征与演变[J]. 金属学报,2019,55(6):762. (LI Bo,ZHANG Zhong-hua,LIU Hua-song,et al. Characteristics and evolution of the spot segregations and banded defects in high strength corrosion resistant tube steel[J]. Acta Metallurgica Sinica,2019,55(6):762.)
[25] 耿豪,张忠铧,唐海燕,等. 高强度油井套管钢偏析与含Nb析出相研究[J]. 钢铁研究学报,2019,31(4):387. (GENG Hao,ZHANG Zhong-hua,TANG Hai-yan,et al. Study on segregation and Nb-bearing precipitates of high-strength oil well casing steel[J]. Journal of Iron and Steel Research,2019,31(4):387.)
[26] Flemings M C. Solidification processing[J]. Metallurgical Transactions,1974,5(10):2121.