Effects of Cooling Paths on Through-Thickness Microstructure and Mechanical Properties of Heavy Gauge X80 Pipeline Steel

被引：3
作者：
Li, Xu-Dong [1 ]
Li, Cheng-Ning [1 ]
Yuan, Guo [1 ]
Wang, Guo-Dong [1 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2017年 / 30卷 / 05期
基金：
中国国家自然科学基金;
关键词：
X80 pipeline steel; Ultra-fast cooling; Cooling path; Finite difference method; Microstructure; Mechanical properties; TEMPERATURE DISTRIBUTION; CLEAVAGE DELAMINATION; FRACTURE-BEHAVIOR; CHARPY IMPACT; TOUGHNESS; MODEL; DEFORMATION; TEXTURE;
D O I：
10.1007/s40195-017-0557-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effects of various cooling paths on uniformity of through-thickness microstructure and mechanical properties of X80 pipeline steel of 22.0 mm in thickness were studied. The finite difference method was employed to calculate the temperature field during cooling. It was confirmed by the experimental result and temperature field calculation that the optimizing process was achieved by the ultra-fast cooling with medium cooling capacity (cooling rate of similar to 23 K/s) followed by ultimate cooling capacity (cooling rate of similar to 50 K/s). After optimization, the experimental steel displayed much uniform microstructure and the deviation of through-thickness hardness was controlled within 20 HV. In addition, the yield strength, tensile strength and elongation of the experimental steel were 621, 728 MPa and 21.5%, respectively, meeting the requirements of the API standard for X80 pipeline steels.
引用
收藏
页码：483 / 492
页数：10
相关论文
共 27 条
[1]   TEXTURE INDUCED CLEAVAGE DELAMINATION OF WARM-ROLLED LOW-CARBON STEEL [J].
BOURELL, DL ;
SHERBY, OD .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (12) :2563-2566
[2]   CLEAVAGE DELAMINATION IN IMPACT TESTED WARM-ROLLED STEEL [J].
BOURELL, DL .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (12) :2487-2496
[3]   An On-line Finite Element Temperature Field Model for Plate Ultra Fast Cooling Process [J].
Chen, Xiao-lin ;
Wang, Guo-dong ;
Tian, Yong ;
Wang, Bing-xing ;
Yuan, Guo ;
Wang, Zhao-dong .
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2014, 21 (05) :481-487
[4]   EFFECT OF COOLING RATE ON MICROSTRUCTURE OF DEFORMED AND UNDEFORMED X80 PIPELINE STEELS [J].
Deng Wei ;
Gao Xiuhua ;
Qin Xiaomei ;
Gao Xin ;
Zhao Dewen ;
Du Linxiu .
ACTA METALLURGICA SINICA, 2010, 46 (08) :959-966
[5]   IMPACT FRACTURE BEHAVIOR OF X80 PIPELINE STEEL [J].
Deng Wei ;
Gao Xiuhua ;
Qin Xiaomei ;
Zhao Dewen ;
Du Linxiu ;
Wang Guodong .
ACTA METALLURGICA SINICA, 2010, 46 (05) :533-540
[6]   Effects of Cooling Conditions on Tensile and Charpy Impact Properties of API X80 Linepipe Steels [J].
Han, Seung Youb ;
Shin, Sang Yong ;
Lee, Sunghak ;
Kim, Nack J. ;
Bae, Jin-Ho ;
Kim, Kisoo .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (02) :329-340
[7]   Role of delamination and crystallography on anisotropy of Charpy toughness in API-X80 steel [J].
Joo, M. S. ;
Suh, D. -W. ;
Bae, J. H. ;
Bhadeshia, H. K. D. H. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 546 :314-322
[8]   Improvement of strength and toughness for hot rolled low-carbon bainitic steel via grain refinement and crystallographic texture [J].
Kang, Jian ;
Li, Cheng-ning ;
Yuan, Guo ;
Wang, Guo-dong .
MATERIALS LETTERS, 2016, 175 :157-160
[9]   Effects of auto-tempering on microstructure and mechanical properties in hot rolled plain C-Mn dual phase steels [J].
Li, Cheng-ning ;
Yuan, Guo ;
Ji, Feng-qin ;
Ren, Dong-sheng ;
Wang, Guo-dong .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 665 :98-107
[10]   Ultra Fast Cooling of a Hot Steel Plate by Using High Mass Flux Air Atomized Spray [J].
Mohapatra, Soumya S. ;
Ravikumar, Satya V. ;
Pal, Surjya K. ;
Chakraborty, Sudipto .
STEEL RESEARCH INTERNATIONAL, 2013, 84 (03) :229-236
123