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Effects of material type, preheating and weld pass number on residual stress of welded steel pipes by multi-pass TIG welding (C-Mn, SUS304, SUS316)

, 2020
A numerical procedure is provided to analyze temperature and residual stress fields in multi-pass TIG welds with different pipe and electrode material.
P. Asadi   +4 more
semanticscholar   +1 more source

Finite-element inverse analysis of residual stress for laser welding based on a contour method

, 2020
The thermal effect of laser welding degrades the local material properties, and this inevitably leads to thermal deformation and thermal residual stress in welded joints.
Z. Lei   +6 more
semanticscholar   +1 more source

Welding residual stresses: a daily history

Science and Technology of Welding and Joining, 2015
Welding is the main joint technology used in steel manufactured products, in particular, in the shipbuilding industry. Recent works report the effect of residual stress redistribution on butt welded plates in a relatively short period after the welding procedures. The phenomenon was investigated by the daily monitoring of the welding residual stresses
T. Gurova   +3 more
openaire   +1 more source

Residual Stresses in a Zircaloy-4 Weld

Journal of Neutron Research, 2004
The macroscopic stress distribution across a Zircaloy-4 (Zr-4) GTAW weld was measured by time-of-flight neutron diffraction at the SMARTS diffractometer at Los Alamos National Laboratory. Time-of-flight diffraction enabled the measurement of strain for all the available reflections permitted by the rolling texture of the plate and its modification in ...
D.G. Carr   +4 more
openaire   +1 more source

Residual Stress on Titanium Alloy Welded Joints

2007
Titanium and its alloys presents an elevated strength/weight ratio, good mechanical properties also to high temperatures, elevated resistance to corrosion and to most part of acids attack. These characteristics makes this material attractive for numerous applications.
CASAVOLA, Caterina   +1 more
openaire   +1 more source

The influence of welding mechanical boundary condition on the residual stress and distortion of a stiffened-panel

Marine Structures, 2019
Stiffened panel structure is one of the most commonly used structure type in ship and offshore engineering, aeronautics and astronautics and other fields. The basic joint type of stiffened panel structure is welding.
Yuelin Zhang, Yuanqing Wang
semanticscholar   +1 more source

Finite element analysis of residual stress in 2.25Cr-1Mo steel pipe during welding and heat treatment process

Journal of Manufacturing Processes, 2019
The circumferential butt-welded pipe was fabricated using 2.25Cr-1Mo steel and then subjected to local post-weld heat treatment (LPWHT) for releasing residual stress after multi-pass welding. The sectioning method was employed to measure residual stress.
Sendong Ren   +4 more
semanticscholar   +1 more source

Laser ultrasonic technology for residual stress measurement of 7075 aluminum alloy friction stir welding

Applied Acoustics, 2019
Friction stir welding (FSW) is widely used in the welding of aluminum alloys for aerospace applications, because of its low energy consumption, high efficiency and good mechanical properties.
Y. Zhan   +4 more
semanticscholar   +1 more source

Residual Stress Evolution in Repair Welds

Strain, 2003
Abstract: The aim of this paper is to study the influence of the repair procedure on the evolution of residual stress distribution in butt welds. C‐Mn steel coupon plates of 11 mm thickness were prepared, subjected to stress relief heat treatment and welded with two beads, using the gas metal arc welding process. After the deposition of two weld beads,
C. Veiga, A. Loureiro, A. Dias
openaire   +1 more source

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