scholarly journals Investigation of residual stresses in welded joints of heat-resistant magnesium alloy ML10 after electrodynamic treatment

2016 ◽  
Vol 4 (2) ◽  
pp. 77-82 ◽  
Author(s):  
L.M. Lobanov ◽  
N.A. Pashchin ◽  
O.L. Mikhodui ◽  
J.A. Khokhlova
Keyword(s):  
Magnesium Alloy ◽  
Residual Stresses ◽  
Welded Joints ◽  
Heat Resistant ◽  
Electrodynamic Treatment

Study of Residual Stresses in Welded Joints of Heat-Resistant ML10 Magnesium Alloy After Electrodynamic Treatment

2014 ◽  
Vol 46 (6) ◽  
pp. 746-752 ◽  
Author(s):  
L. M. Lobanov ◽  
N. A. Pashchin ◽  
V. V. Savitskii ◽  
O. L. Mikhodui
Keyword(s):  
Magnesium Alloy ◽  
Residual Stresses ◽  
Welded Joints ◽  
Heat Resistant ◽  
Electrodynamic Treatment

Influence of parameters of electrodynamic treatment on residual stresses of welded joints of alloy AMg6

2019 ◽  
Vol 2019 (4) ◽  
pp. 3-6
Author(s):  
L.M. Lobanov ◽  
◽  
N.A. Pashchin ◽  
A.N. Timoshenko ◽  
O.L. Mikhoduj ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Welded Joints ◽  
Alloy Amg6 ◽  
Electrodynamic Treatment

Influence of parameters of electrodynamic treatment on residual stresses of welded joints of alloy AMg6

2019 ◽  
Vol 2019 (4) ◽  
pp. 2-4
Author(s):  
L.M. Lobanov ◽  
◽  
N.A. Pashchin ◽  
A.N. Timoshenko ◽  
O.L. Mikhoduj ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Welded Joints ◽  
Alloy Amg6 ◽  
Electrodynamic Treatment

Peculiarities of Formation of Residual Stresses in Welded Joints and Stellite Weld Cladding on Rail Steel

2020 ◽  
Vol 11 (3) ◽  
pp. 634-640
Author(s):  
S. Ya. Betsofen ◽  
K. V. Grigorovich ◽  
A. A. Ashmarin ◽  
A. Yu. Abdurashitov ◽  
M. A. Lebedev
Keyword(s):  
Residual Stresses ◽  
Welded Joints ◽  
Rail Steel ◽  
Weld Cladding

Thermoacoustic method for relaxation of residual stresses in welded joints

1995 ◽  
Vol 30 (4) ◽  
pp. 491-493
Author(s):  
V. V. Koshovyi ◽  
M. I. Pekhn'o ◽  
O. I. Tsykhan
Keyword(s):  
Residual Stresses ◽  
Welded Joints

Finite Element Analyses of Residual Stresses in Typical Welded Joints Used in Nuclear Power Plants and Comparisons With Experiments

2010 ◽  
Author(s):  
Dean Deng ◽  
Kazuo Ogawa ◽  
Nobuyoshi Yanagida ◽  
Koichi Saito
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Residual Stresses ◽  
Welded Joints ◽  
Nuclear Power ◽  
Power Plants ◽  
Butt Joint ◽  
Welding Residual Stress ◽  
Dissimilar Metal ◽  
Water Reactors

Recent discoveries of stress corrosion cracking (SCC) at nickel-based metals in pressurized water reactors (PWRs) and boiling water reactors (BWRs) have raised concerns about safety and integrity of plant components. It has been recognized that welding residual stress is an important factor causing the issue of SCC in a weldment. In this study, both numerical simulation technology and experimental method were employed to investigate the characteristics of welding residual stress distribution in several typical welded joints, which are used in nuclear power plants. These joints include a thick plate butt-welded Alloy 600 joint, a dissimilar metal J-groove set-in joint and a dissimilar metal girth-butt joint. First of all, numerical simulation technology was used to predict welding residual stresses in these three joints, and the influence of heat source model on welding residual stress was examined. Meanwhile, the influence of other thermal processes such as cladding, buttering and heat treatment on the final residual stresses in the dissimilar metal girth-butt joint was also clarified. Secondly, we also measured the residual stresses in three corresponding mock-ups. Finally, the comparisons of the simulation results and the measured data have shed light on how to effectively simulate welding residual stress in these typical joints.

A Study of the Influence of Local Heat Treatment on the Structure of Welded Titanium Pipelines

2021 ◽  
Vol 410 ◽  
pp. 37-41
Author(s):  
Natalia A. Astafeva ◽  
Andrey A. Balanovskiy ◽  
Anna A. Pershina
Keyword(s):  
Heat Treatment ◽  
Residual Stresses ◽  
Titanium Alloys ◽  
Welded Joints ◽  
Treatment Method ◽  
Local Heat ◽  
Optical Metallography ◽  
Heat Treated ◽  
Weld Structure ◽  
Heat Treatment Method

The article analyzes the results of a study of the influence of zonal heat treatment on the structure of welded joints of pipeline elements made of titanium alloys Ti-3.5Al-1.5Mn. In the manufacture of such structures, the TIG welding method is used to join pipe elements, after which the heat treatment method can be used to relieve residual stresses. The experiments have confirmed the effectiveness of zonal heat treatment preceded by welding. It was revealed that for welded joints made of titanium alloys, heat treatment can stabilize the structure. In experiments conducted by the method of optical metallography, the structure of heat treated and untreated welded joints was investigated. The influence of heat treatment on the weld structure and heat-affected zone was identified.

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