Results 11 to 20 of about 324,138 (296)

Crack initiation mechanisms and life prediction of GH4169 superalloy in the high cycle and very high cycle fatigue regime

open access: yesJournal of Materials Research and Technology, 2023
In this study, the high cycle and very high cycle fatigue behavior of the GH4169 superalloy was investigated. The results of the fatigue tests demonstrated that failures in the high cycle fatigue regime were initiated from the material surface, whereas ...
Zhi Qin   +8 more
doaj   +3 more sources

Effect of ultrasonic nanocrystal surface modification on the characteristics of AISI 310 stainless steel up to very high cycle fatigue [PDF]

open access: yes, 2016
Effects of ultrasonic nanocrystal surface modification (UNSM) on the very high cycle fatigue response of AISI 310 stainless steel have been investigated. The higher impact force used in UNSM treatment showed a higher fatigue life improvement. The fatigue
Amanov   +21 more
core   +1 more source

Fretting Fatigue Behaviour of Alloy Steel in the Very High Cycle Region [PDF]

open access: yesMATEC Web of Conferences, 2019
It is well known that fretting fatigue strength is much lower than the fatigue strength of smooth specimens and the fatigue limit disappears. Many studies on fretting fatigue have been reported but most of the studies have not cover fatigue properties in
Shimamura Yoshinobu   +6 more
doaj   +1 more source

Microstructure-Based Fatigue Modeling with Residual Stresses: Effect of Inclusion Shape on Very High Cycle Fatigue Life

open access: yesCrystals, 2022
When considering the effect of inclusions on fatigue life, the size effect of inclusions is well recognized. However, many of these studies overlooked or decoupled the size effect from the shape features.
Chao Gu   +3 more
doaj   +1 more source

Very High Cycle Fatigue Behavior of TA11 Titanium Alloy

open access: yesJournal of Aeronautical Materials, 2017
The conventional fatigue test method was used to obtain the very high cycle fatigue (VHCF) limits of 3×107 and 1×108 cycles for TA11 titanium alloy in different temperatures and stress ratios.
JIAO Zehui   +4 more
doaj   +1 more source

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

open access: yes, 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.
Chengen Zhou, Guian Qian, Youshi Hong
core   +2 more sources

Properties of the Fine Granular Area and Postulated Models for Its Formation during Very High Cycle Fatigue—A Review

open access: yesApplied Sciences, 2020
Understanding the mechanisms leading to very high cycle fatigue is necessary to make predictions about the behavior under various conditions and to ensure safe design over the whole lifetime of high-performance components.
Jan Patrick Sippel, Eberhard Kerscher
doaj   +1 more source

Effect of Pore Defects on Very High Cycle Fatigue Behavior of TC21 Titanium Alloy Additively Manufactured by Electron Beam Melting

open access: yesCrystals, 2023
Titanium alloys additively manufactured by electron beam melting (EBM) inevitably obtained some pore defects, which significantly reduced the very high cycle fatigue performance.
Qingdong Li   +7 more
doaj   +1 more source

Effect of sandblasting on low and high-cycle fatigue behaviour after mechanical cutting of a twinning-induced plasticity steel [PDF]

open access: yes, 2018
In the last years, car bodies are increasingly made with new advanced high-strength steels, for both lightweighting and safety purposes. Among these new steels, high-manganese or TWIP steels exhibit a promising combination of strength and toughness ...
Calvo Muñoz, Jessica   +5 more
core   +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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