Microstructural Evolution and Mechanical Properties of Nb-Ti Microalloyed Pipeline Steel

被引：17

作者：

Lan, Liang-yun ^{[1
]}

Qiu Chun-lin ^{[1
]}

Zhao De-wen ^{[1
]}

Gao Xiu-hua ^{[1
]}

机构：

[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110004, Liaoning, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2011年 / 18卷 / 02期

基金：

中国国家自然科学基金;

关键词：

pipeline steel; acicular ferrite; mechanical property; electron backscattered diffraction; CHARPY IMPACT PROPERTIES; HEAT-AFFECTED ZONE; ACICULAR FERRITE; TRANSFORMATION BEHAVIOR; LOW-CARBON; TOUGHNESS; BAINITE;

D O I：

10.1016/S1006-706X(11)60024-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The correlation between microstructures and mechanical properties of a Nb-Ti microalloyed pipeline steel was investigated. The results revealed that with decreasing the finish rolling temperature and the cooling stop temperature, the matrix microstructure was changed from quasi-polygonal ferrite to acicular ferrite, as a result of improvement of both strength and low temperature toughness. by means of electron backscattered diffraction observation, an effective acicular ferrite packet contained several low angle boundaries or subboundaries plates which made important contributions to improvement of strength. It was found that many fine quasi-polygonal ferrite grains with high angle boundaries as the toughening structure were introduced into the acicular ferrite matrix to refine effective grain size and improve the toughness.

引用

下载

页码：57 / 63

页数：7

共 50 条

[1] Microstructural Evolution and Mechanical Properties of Nb-Ti Microalloyed Pipeline Steel
Liang-yun Lan
Chun-lin Qiu
De-wen Zhao
Xiu-hua Gao
Journal of Iron and Steel Research International, 2011, 18 : 57 - 63
[2] Microstructural Evolution and Mechanical Properties of Nb-Ti Microalloyed Pipeline Steel
LAN Liang-yun
Journal of Iron and Steel Research(International), 2011, 18 (02) : 57 - 63
[3] Effect of deformation on the hot ductility and microstructural evolution of a Nb-Ti microalloyed steel
Akhlaghi, S
Hassani, F
Yue, S
41ST MECHANICAL WORKING AND STEEL PROCESSING CONFERENCE PROCEEDINGS, VOL 37, 1999, 37 : 125 - 132
[4] SIMULATION OF MICROSTRUCTURAL EVOLUTION IN NB-TI MICROALLOYED STEEL DURING HOT DIRECT ROLLING
PRIESTNER, R
ZHOU, C
IRONMAKING & STEELMAKING, 1995, 22 (04) : 326 - 332
[5] Microstructural evolution in a new 770 MPa hot rolled Nb-Ti microalloyed steel
Misra, RDK
Nathani, H
Hartmann, JE
Siciliano, F
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 394 (1-2): : 339 - 352
[6] The impact of Nb on dynamic microstructure evolution of an Nb-Ti microalloyed steel
Mohebbi, Mohammad Sadegh
Rezayat, Mohammad
Parsa, Mohammad Habibi
Nagy, Stefan
Nosko, Martin
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 723 : 194 - 203
[7] Effect of thermomechanical processing on the microstructure and mechanical properties of Nb-Ti microalloyed steel
Zrník, J
Kvackaj, T
Pongpaybul, A
Sricharoenchai, P
Vilk, J
Vrchovinsky, V
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 319 : 321 - 325
[8] Effects of Cooling Rates on Microstructures and Mechanical Properties of Nb-Ti Microalloyed Steel
赵素
吴玉娟
何美凤
张立
Journal of Shanghai Jiaotong University(Science), 2012, 17 (06) : 653 - 657
[9] Effects of cooling rates on microstructures and mechanical properties of Nb-Ti microalloyed steel
Su Zhao
Yu-juan Wu
Mei-feng He
Li Zhang
Journal of Shanghai Jiaotong University (Science), 2012, Shanghai Jiaotong University (17): : 653 - 657
[10] Microstructural evolution and carbides precipitation behavior and their effects on mechanical property of Nb-Ti microalloyed FB590 steel
Yaxu, Zheng
Chu, Shaokang
Yang, Qin
Yu, Lin
Zhu, Liguang
Li, Yongliang
Guo, Zhihong
Zhang, Di
Cao, Ruifang
Feng, Jie
Wang, Bo
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 902

← 1 2 3 4 5 →