OPTIMUM DESIGN AND DEVELOPMENT OF HIGH STRENGTH AND TOUGHNESS WELDING WIRE FOR PIPELINE STEEL

被引：0

作者：

Chen, Cuixin ^{[1
]}

Xue, Haitao

Yin, Fuxing

Peng, Huifen

Zhi, Lei

Wang, Sixu

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China

来源：

ENERGY MATERIALS CONFERENCE PROCEEDINGS 2014 | 2014年

关键词：

pipeline steel; weld deposits; alloy system; phase transformation; MICROSTRUCTURE; FERRITE;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Pipeline steel with higher strength(>8001ViPa) has been gradually used in recent years, so how to achieve good match of base metal and weld deposit is very important for its practical application. Based on the alloy system of 0.02-0.04%C, 2.0%Mn and 0.5%Si, four different kinds of welding wires were designed and produced. The effects of alloy elements on phase transformation and mechanical properties were analyzed. Experimental results show that the designed steels with the addition of 2-4% Ni+Cr+Mo and <0.2% Nb+V+Ti have high strength (>800MPa) and good elongation (>15%). The microstructure of deposits metal is mainly composed of granular bainite and M-A constituents with the mean size of 0.2-07[tm are dispersed on ferritic matrix. The deposited metals have good match of strength (>800MPa) and impact toughness (>130J) which well meet the requirement of pipeline welding.

引用

页码：665 / 672

页数：8

共 15 条

[1] Effect of copper content on the microstructure and mechanical properties of multipass MMA, low alloy steel weld metal deposits [J].

Avazkonandeh-Gharavol, M. H. ;

Haddad-Sabzevar, M. ;

Haerian, A. .

MATERIALS & DESIGN, 2009, 30 (06) :1902-1912

[2] Influence of the chemical composition on transformation behaviour of low carbon microalloyed steels [J].

Calvo, J. ;

Jung, I. -H. ;

Elwazri, A. M. ;

Bai, D. ;

Yue, S. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 520 (1-2) :90-96

[3]

Chang L.Z., 2010, IRON STEEL VANADIUM, V31, P42

[4]

Chen CX, 2008, MATER SCI FORUM, V575-578, P690, DOI 10.4028/0-87849-392-1.690

[5] Effect of Ti addition on mixed microstructure of allotriomorphic and bainitic ferrite in wrought C-Mn steels [J].

Cho, YW ;

Byun, JS ;

Shim, JH .

THERMEC'2003, PTS 1-5, 2003, 426-4 :1511-1516

[6]

Fairchild D.P., 2006, WELDED PIPE TUBE, V29, P27

[7]

GAO HL, 2001, T MAT HEAT TREATMENT, V22, P60

[8]

GAO HL, 1995, MICROSTRUCTURE PROPE

[9]

GARCIA CI, 1992, ISS T, V13, P103

[10]

Lu D.L, 1987, WELDING METALLOGRAPH

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