Micromechanism of Decrease of Impact Toughness in Coarse-Grain Heat-Affected Zone of HSLA Steel with Increasing Welding Heat Input

被引：59

作者：

Cao, R. ^{[1
,2
]}

Li, J. ^{[1
,2
]}

Liu, D. S. ^{[3
]}

Ma, J. Y. ^{[1
,2
]}

Chen, J. H. ^{[1
,2
]}

机构：

[1] Lanzhou Univ Technol, State Key Lab Gansu Adv Proc & Recycling Nonferro, Minist Educ, Lanzhou 730050, Peoples R China

[2] Lanzhou Univ Technol, Key Lab Nonferrous Met Alloys, Minist Educ, Lanzhou 730050, Peoples R China

[3] Shasteel, Inst Res Iron & Steel, Zhangjiagang 215623, Jiangsu, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2015年 / 46A卷 / 07期

关键词：

MICROSTRUCTURE; SIZE;

D O I：

10.1007/s11661-015-2916-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper analyzes the micromechanism of decrease of impact toughness with increasing the welding heat input in coarse-grain heat-affected zone (CGHAZ) of a low-alloy high-strength ship-building steel plate. By comparing the microstructures, measuring the extending length of the fibrous crack, identifying the critical event of cleavage fracture, measuring the critical length, and calculating the local cleavage fracture stress sigma (f), and then using the basic principles of the micromechanism of cleavage fracture, this work reveals the essential causes of deteriorated toughness in the CGHAZ of high-strength steel welded joints.

引用

页码：2999 / 3014

页数：16

共 50 条

[21] Influence of welding interpass temperature on Charpy V-notch impact energy of coarse-grain heat-affected zone of AISI 4130 steel pipe
Paulo Henrique Grossi Dornelas
Francisco Werley Cipriano Farias
Victor Hugo Pereira Moraes e Oliveira
Diogo de Oliveira Moraes
Petrônio Zumpano Júnior
João da Cruz Payão Filho
The International Journal of Advanced Manufacturing Technology, 2020, 108 : 2197 - 2211
[22] Effect of heat input on the microstructure and hydrogen embrittlement susceptibility of the coarse-grain heat-affected zone of CrMo steels generated using a Gleeble 3500 welding simulator
Tong, Zhi
Wen, Qiyun
Wang, Hantong
Zhou, Hongyu
Zheng, Wenyue
ENGINEERING FAILURE ANALYSIS, 2024, 166
[23] Microstructure evolution and properties of reheated coarse grain heat-affected zone of 900 MPa grade HSLA steel
Qin, H.
Qiao, Z.
Wu, Q.
Lian, J.
Wang, L.
Cui, Y.
KOVOVE MATERIALY-METALLIC MATERIALS, 2020, 58 (02): : 121 - 128
[24] Effect of Mg Content on the Microstructure and Toughness of Heat-Affected Zone of Steel Plate after High Heat Input Welding
Long-Yun Xu
Jian Yang
Rui-Zhi Wang
Yu-Nan Wang
Wan-Lin Wang
Metallurgical and Materials Transactions A, 2016, 47 : 3354 - 3364
[25] Effect of Mg Content on the Microstructure and Toughness of Heat-Affected Zone of Steel Plate after High Heat Input Welding
Xu, Long-Yun
Yang, Jian
Wang, Rui-Zhi
Wang, Yu-Nan
Wang, Wan-Lin
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2016, 47A (07): : 3354 - 3364
[26] Improvement of Heat-Affected Zone Toughness of Steel Plates for High Heat Input Welding by Inclusion Control with Ca Deoxidation
Wang, Ruizhi
Yang, Jian
Xu, Longyun
METALS, 2018, 8 (11)
[27] Effect of Internal Hydrogen on the Fatigue Crack Growth Rate in the Coarse-Grain Heat-Affected Zone of a CrMo Steel
Alvarez, Guillermo
Zafra, Alfredo
Belzunce, Francisco Javier
Rodriguez, Cristina
METALS, 2022, 12 (04)
[28] Effect of Heat Input on Toughness of Coarse-grained Heat-affected Zone of an Ultra Low Carbon Acicular Ferrite Steel
Xia, Z. H.
Wan, X. L.
Tao, X. L.
Wu, K. M.
MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4, 2012, 538-541 : 2003 - +
[29] Microstructure and toughness of coarse grain heat-affected zone of domestic X70 pipeline steel during in-service welding
Chaowen Li
Yong Wang
Tao Han
Bin Han
Liying Li
Journal of Materials Science, 2011, 46 : 727 - 733
[30] Microstructure and toughness of coarse grain heat-affected zone of domestic X70 pipeline steel during in-service welding
Li, Chaowen
Wang, Yong
Han, Tao
Han, Bin
Li, Liying
JOURNAL OF MATERIALS SCIENCE, 2011, 46 (03) : 727 - 733

← 1 2 3 4 5 →