Effect of carbon migration on mechanical properties of dissimilar weld joint

2020 ◽  
Vol 117 ◽  
pp. 104935
Author(s):  
Qiang Wu ◽  
Qingchen Xu ◽  
Yong Jiang ◽  
Jianming Gong
Keyword(s):  
Mechanical Properties ◽  
Weld Joint ◽  
Dissimilar Weld ◽  
Carbon Migration

Microstructural investigation and mechanical properties evaluation using miniature specimen testing of various constituents of dissimilar weld joint

2020 ◽  
Vol 532 ◽  
pp. 152048 ◽  
Author(s):  
Deepshree D. Awale ◽  
Atul R. Ballal ◽  
Manjusha M. Thawre ◽  
V.D. Vijayanand ◽  
J. Ganesh Kumar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Weld Joint ◽  
Microstructural Investigation ◽  
Dissimilar Weld ◽  
Miniature Specimen

Local mechanical properties of Alloy 82/182 dissimilar weld joint between SA508 Gr.1a and F316 SS at RT and 320°C

2009 ◽  
Vol 384 (3) ◽  
pp. 212-221 ◽  
Author(s):  
Jin Weon Kim ◽  
Kyoungsoo Lee ◽  
Jong Sung Kim ◽  
Thak Sang Byun
Keyword(s):  
Mechanical Properties ◽  
Weld Joint ◽  
Dissimilar Weld

Comparison of Creep Behavior of 2.25Cr-1.6W/Mod. 9Cr-1Mo Dissimilar Weld Joint with Each Matching Filler Metal

2005 ◽  
Vol 297-300 ◽  
pp. 1452-1457
Author(s):  
Jong Jin Park ◽  
Cheol Hong Joo ◽  
Jeong Tae Kim ◽  
Hyu Sun Yu
Keyword(s):  
Creep Behavior ◽  
Creep Strength ◽  
Weld Joint ◽  
Filler Metal ◽  
Welded Joint ◽  
Creep Damage ◽  
Creep Rupture ◽  
Dissimilar Weld ◽  
Weld Joints ◽  
Carbon Migration

This paper describes the evaluation of the creep behavior with two types of matching filler metals for 2.25Cr-1.6W(T23)/Mod. 9Cr-1Mo(T91) dissimilar weld joint. Through the welding procedure qualification tests prior to the creep tests, optimum PWHT holding times at 745±5oC were determined as 30minutes for T23 matching filler metal and 60minutes for T91 matching filler metal. It was also confirmed that carbon migration across the weld interfaces and the softened area at HAZ occurred during PWHT. Creep rupture tests were carried out at 575-650oC and 70-220MPa for two dissimilar metal welds manufactured by an optimum PWHT condition. From the comparison of creep rupture strength, it was shown that the creep strength of the welded joint including T23 matching filler metal was similar to that of T23 base material and somewhat higher than that of the welded joint including T91 matching filler metal. From metallurgical study on the crept specimen, the creep damage of T23/T91 dissimilar weld joints could occur at T23 side IC HAZ and near the T23/T91 weld interface simultaneously. However, the final failure locations seemed to depend on the filler metal and the cause of this phenomenon might be regarded as the additional effect of carbon migration across the weld interfaces. It is thought that the dissimilar weld including T91 filler metal which failures at T23 side CG HAZ subject to both metallurgical notch and carbon migration become more susceptible to creep damage than that including T23 filler metal in which the carbon depletion occurs at the T23 filler metal with higher creep strength than T23 HAZ. T23 filler metal can therefore be proposed for matching filler metal of T23/T91 dissimilar weld joints

Effect of the Weld Joint Configuration on Stressed Components, Residual Stresses and Mechanical Properties

2014 ◽  
Vol 56 (4) ◽  
pp. 279-284 ◽  
Author(s):  
Bekir Çevik ◽  
Alpay Özer ◽  
Yusuf Özçatalbaş
Keyword(s):  
Mechanical Properties ◽  
Residual Stresses ◽  
Weld Joint ◽  
Joint Configuration

scholarly journals In-situ reactions and mechanical properties of 6061 aluminum alloy weld joint with SiCp by laser melting injection

2021 ◽  
Vol 203 ◽  
pp. 109538
Author(s):  
Boan Xu ◽  
Ping Jiang ◽  
Shaoning Geng ◽  
Yilin Wang ◽  
Jintian Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Weld Joint ◽  
Laser Melting ◽  
6061 Aluminum Alloy ◽  
In Situ Reactions ◽  
Alloy Weld

scholarly journals Residual Stress Analysis of Dissimilar Weld Joint between CastIron Pipe and Steel Flange

2020 ◽  
Vol 38 (2) ◽  
pp. 144s-148s
Author(s):  
Tomohiro MURATA ◽  
Shigetaka OKANO ◽  
Shimpei TSUTSUMI ◽  
Kenji SAWADA ◽  
Koji NAKAMOTO ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
Weld Joint ◽  
Dissimilar Weld ◽  
Residual Stress Analysis

Investigation on the effects of the joint type on the driven out bead in the welded pipes produced by high-frequency induction welding

2020 ◽  
pp. 146442072097343
Author(s):  
M Ghaffarpour ◽  
D Akbari ◽  
H Moslemi Naeini
Keyword(s):  
Mechanical Properties ◽  
Weld Joint ◽  
High Frequency ◽  
Weld Zone ◽  
Welding Process ◽  
Solid Material ◽  
Outer Diameter ◽  
Metallurgical Properties ◽  
Semi Solid ◽  
High Frequency Induction

In this paper, the effects of the joint type on the driven-out bead of the roll-formed pipes, welded by high-frequency induction welding process are studied. The main goal is to predict and reduce the volume of the bead driven out in the weld seam. Moreover, it aims to move the semi-solid bead during welding to the outer diameter of the pipe. This study has two prior aims: to produce a defect-free joint and to improve the mechanical and metallurgical properties. In order to optimize the weld joint, various joint types have been investigated by experimental tests and simulation. Lastly, destructive tests were used to determine if the desired mechanical properties of the weld joint were obtained. The metallurgical properties and the derivation of the semi-solid material in the weld zone have both been investigated in terms of microstructure. According to the results, the proper joint type improves the mechanical properties by 5% and reduces the volume of the weld bead about 45%.

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