Results 11 to 20 of about 267 (176)

Crack propagation mechanism and life prediction for very-high-cycle fatigue of a structural steel in different environmental medias [PDF]

open access: yesFracture and Structural Integrity, 2013
The influence of environmental medias on crack propagation of a structural steel at high and very-high-cycle fatigue (VHCF) regimes is investigated based on the fatigue tests performed in air, water and 3.5% NaCl aqueous solution.
Guian Qian, Chengen Zhou, Youshi Hong
doaj   +3 more sources

Very High Cycle Fatigue of Welds: A Review

open access: yesMetals, 2023
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 behaviour of welded joints in the VHCF regime is limited ...
Andrew England   +2 more
doaj   +1 more source

Cumulative Damage in Very High/Low Cycle Combined Fatigue for TC21 Titanium Alloy

open access: yesCrystals, 2022
The effect of low cycle fatigue (LCF) predamage with no precracks on very high cycle fatigue (VHCF) properties, and crack initiation characteristics for TC21 titanium alloy, was investigated.
Baohua Nie   +7 more
doaj   +1 more source

Influence of a Thermo-Mechanical Treatment on the Fatigue Lifetime and Crack Initiation Behavior of a Quenched and Tempered Steel

open access: yesMetals, 2022
A thermo-mechanical treatment (TMT) at the temperature of maximum dynamic strain aging has been optimized and performed on quenched and tempered steel SAE4140H (German designation: 42CrMo4) in order to improve the fatigue limit in the high cycle fatigue (
Amin Khayatzadeh   +4 more
doaj   +1 more source

Ultra-high frequency vibration fatigue of DD6 single crystal superalloy simulating thin-walled specimens

open access: yesJournal of Aeronautical Materials, 2023
The effect of specimen thickness on the very high cycle fatigue (VHCF) properties of DD6 nickel-based single crystal superalloys for turbine blades with hollow air-cooled structure was investigated. Based on the finite element method (FEM), a thin-walled
GAO Zhiyuan   +7 more
doaj   +1 more source

Fatigue property and failure mechanism of TC4 titanium alloy in the HCF and VHCF region considering different forging processes

open access: yesMaterials Research Express, 2021
Based on the self-built three point bending ultrasonic fatigue test system, fatigue behavior of TC4 titanium alloy after different forging processes in high cycle fatigue (HCF) and very high cycle fatigue (VHCF) regimes was discussed in this paper.
Wenbin Cui   +5 more
doaj   +1 more source

Very high cycle fatigue assessment at elevated temperature of 100 μm thin structures made of high-strength steel X5CrNiCuNb16-4

open access: yesJournal of Materials Research and Technology, 2022
Many components and structures are exposed to very high number of cycles and challenging environmental conditions during operation. This study contributes to a better understanding of the very high cycle fatigue (VHCF) properties of high-strength steel ...
Florian Himmelbauer   +4 more
doaj   +1 more source

Effect of Turning on the Surface Integrity and Fatigue Life of a TC11 Alloy in Very High Cycle Fatigue Regime

open access: yesMetals, 2020
In this work, the effect of a turning process on fatigue performance of a Ti-6.5Al-3.5Mo-1.5Zr-0.3Si (TC11) titanium alloy is studied in the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) regimes.
Tao Gao   +6 more
doaj   +1 more source

Crack initiation characteristics and fatigue property of a high-strength steel in VHCF regime under different stress ratios [PDF]

open access: yesFracture and Structural Integrity, 2016
Crack initiation characteristics and fatigue property of a high-strength steel in very-high-cycle fatigue (VHCF) regime under different stress ratios were investigated in this paper.
Xiaolong Liu, Chengqi Sun, Youshi Hong
doaj   +1 more source

Comparison between Fractal and Statistical Approaches to Model Size Effects in VHCF

open access: yesMetals, 2022
Size effects concern the anomalous scaling of relevant mechanical properties of materials and structures over a sufficiently wide dimensional range. In the last few years, thanks to technological advances, such effects have been experimentally detected ...
Stefano Invernizzi   +4 more
doaj   +1 more source

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