Results 21 to 30 of about 47,462 (292)

Effects of High Toughness and Welding Residual Stress for Unstable Fracture Prevention

Applied Sciences, 2020
Unstable fractures generally occur in brittle materials under low-temperature service conditions. Toughness and welding residual stress are the main factors that should be evaluated when defining a brittle crack propagation path. In this study, a rainbow
Gyubaek An, Jeongung Park, Ilwook Han
doaj   +1 more source

Welding process optimization for blast furnace shell by numerical simulation and experimental study

Journal of Materials Research and Technology, 2023
At cold temperatures, the stress after welding a blast furnace shell is not completely released because of the fast cooling speed, which results in cracks.
Hongchao Ji, Jie Yuan, Xiaomin Huang, Xiaoming Yang, Shengqiang Liu, Baoyu Wang   +5 more
doaj   +1 more source

Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steel [PDF]

, 2016
Multi-pass fusion welding by a filler material (wire) is normally carried out to join thick steel sections used in most engineering applications. Multiple thermal cycles from a multi-pass weld resulted in a variable distribution of residual stress field ...
Ganguly, Supriyo, Pirling, Thilo, Suder, Wojciech, Sule, Jibrin   +3 more
core   +2 more sources

Comparison of Measured Residual Stress Distributions in Extra-Thick Butt Welds Joined by One-Pass EGW and Multipass FCAW

Advances in Mechanical Engineering, 2014
This study is to measure the welding residual stress distributions in a 70 mm-thick butt weld by one-pass electron gas welding using both the inherent strain method and neutron diffraction method, respectively.
Jeong-Ung Park, GyuBaek An, Wan Chuck Woo, Jae-hyouk Choi, Ninshu Ma   +4 more
doaj   +1 more source

The effect of initial stress induced during the steel manufacturing process on the welding residual stress in multi-pass butt welding

International Journal of Naval Architecture and Ocean Engineering, 2018
A residual stress generated in the steel structure is broadly categorized into initial residual stress during manufacturing steel material, welding residual stress caused by welding, and heat treatment residual stress by heat treatment.
Jeong-ung Park, Gyubaek An, Wanchuck Woo
doaj   +1 more source

Welding Residual Stress Elimination Technique in the Top Chord of Main Truss of Steel Truss Bridge

Buildings, 2023
The large-amplitude fluctuations of ultrasound in high-energy ultrasonic stress relieving cause the crystal grains or lattices in the high residual stress zone to vibrate or creep alternately.
Long Piao, Jianfeng Yuan, Niujing Ma, Changqi Yue, Ronghui Wang, Gangbing Zheng   +5 more
doaj   +1 more source

Study on Residual Stress in Single-sided and Double-sided Friction Stir Welding of Thick Plate 2219 Aluminum Alloy

Yuanzineng kexue jishu
Welding residual stress is related to the mechanical properties and service life of components. To accurately grasp the residual stress distribution of thick plate 2219 aluminum alloy after friction stir welding (FSW), optimize the welding process, and ...
WANG Binrong
doaj   +1 more source

Effect of Residual Stress on the Ultimate Bearing Capacity of Titanium Alloy Pressure Spherical–Cylindrical-Combined Shells

Metals
Titanium alloy pressure spherical–cylindrical shells enable the effective utilization of the strength of spherical and cylindrical pressure-resistant shell components.
Yuxuan Wang, Jianting Guo, Bowen Zhang, Keke Ge, Liangbi Li, Feng Lv   +5 more
doaj   +1 more source

Evaluation of sub-surface residual stress by ultrasonic method and finite-element analysis of welding process in a Monel pressure vessel [PDF]

, 2016
Welding of nickel-based alloys is increasingly used in the industry to manufacture various important structures in the marine industries, chemical processing, etc. This study investigates evaluation of sub-surface residual stresses, which are produced by
Javadi, Yashar, Mosteshary, Seyed Hatef
core   +1 more source

Thermo-mechanical analysis on thermal deformation of thin stainless steel in laser micro-welding [PDF]

, 2016
In the present study, a three-dimensional finite element model has been developed to simulate the temperature, stress and deformation fields in continuous wave (CW) laser micro-welding of thin stainless steel sheet.
Ismail, Mohd Idris Shah, Okada, Akira, Okamoto, Yasuhiro   +2 more
core   +1 more source