Defects as a root cause of fatigue failure of metallic components. III: Cavities, dents, corrosion pits, scratches

U Zerbst, M Madia, C Klinger, D Bettge… - Engineering Failure …, 2019 - Elsevier
This third part of the review on defects as root cause of fatigue failure addresses cavities
(pores, micro-shrinkages, unmelted regions), defective microstructures and microcracks as …

Very high cycle fatigue of welds: a review

A England, A Toumpis, Y Gorash - Metals, 2023 - mdpi.com
The design life of welded structures and components extends into the very high cycle fatigue
(VHCF) regime across various applications. However, the availability of data on the fatigue …

Fatigue damage evolution and lifetime prediction of welded joints with the consideration of residual stresses and porosity

F Shen, B Zhao, L Li, CK Chua, K Zhou - International Journal of Fatigue, 2017 - Elsevier
This work investigates the fatigue damage evolution of butt welded joints under cyclic
loading through a continuum damage mechanics approach. A coupled thermal-mechanical …

Localized dislocation interactions within slip bands and crack initiation in Mg-10Gd-3Y-0.3 Zr alloy

C He, X Li, Y Liu, C Wang, H Zhang, L Li… - International Journal of …, 2021 - Elsevier
The underlying low-stress cyclic deformation and associated dislocation activities within the
slip bands (SBs) in a rare earth-containing magnesium (RE-Mg) alloy were characterized …

Welding of AA6061-T6 Sheets Using High-Strength 4xxx Fillers: Effect of Mg on Mechanical and Fatigue Properties

M Ahmed, M Javidani, A Maltais, XG Chen - Materials, 2023 - mdpi.com
Al-Si-Mg 4xxx filler metals are widely used in aluminum welding owing to their excellent
weldability and capability for strength enhancement by heat treatment. However, weld joints …

Through thickness property variations in friction stir welded AA6061 joint fatigued in very high cycle fatigue regime

C He, Y Liu, J Dong, Q Wang, D Wagner… - International Journal of …, 2016 - Elsevier
Ultrasonic fatigue tests were performed on friction stir welded AA6061 joint to investigate
very high cycle fatigue (VHCF) behaviors. As a result, almost all the fatigue cracks are …

Fatigue crack initiation behaviors throughout friction stir welded joints in AA7075-T6 in ultrasonic fatigue

C He, Y Liu, J Dong, Q Wang, D Wagner… - International Journal of …, 2015 - Elsevier
This paper presents the results of experimental investigation on fatigue behaviors of friction
stir welded joints in AA7075-T6 with ultrasonic fatigue test system (20 kHz). Two kinds of …

Effects of mechanical heterogeneity on the tensile and fatigue behaviours in a laser-arc hybrid welded aluminium alloy joint

C He, C Huang, Y Liu, J Li, Q Wang - Materials & Design (1980-2015), 2015 - Elsevier
The effects of mechanical heterogeneity on the tensile and high cycle fatigue (10 4–10 7
cycles) properties were investigated for laser-arc hybrid welded aluminium alloy joints …

Defect sensitivity and high-cycle fatigue resistance of arc-welded 2219 aluminum alloy at 77 K

W He, Y Hu, Z Wu, F Wang, F Meng, Y Lin… - International Journal of …, 2024 - Elsevier
This study investigated the tensile and high-cycle fatigue (HCF) properties of a tungsten inert
gas (TIG)-welded 2219 aluminum alloy at room temperature (RT) and 77 K for the first time …

Fatigue damage evaluation of orthotropic steel deck considering weld residual stress relaxation based on continuum damage mechanics

C Cui, Q Zhang, Y Bao, Y Bu, Z Ye - Journal of Bridge Engineering, 2018 - ascelibrary.org
Weld residual stresses (WRSs) in orthotropic steel decks (OSDs) contribute prominently to
fatigue damage. WRSs relax during the accumulation of fatigue damage. However, their …