Results 101 to 110 of about 1,406 (208)

Thickness debit effect of Ni-based single crystal superalloy thin-walled specimens in the VHCF regime based on a vibration fatigue test

Journal of Materials Research and Technology
This paper proposes a novel vibration fatigue testing methodology of thin-walled specimens in the very high cycle fatigue (VHCF) regime, with the lifetime up to 109 cycles. A series of novel thin-walled specimens for the single crystal superalloy DD6 are
Wei Xu, Beichen Zhu, Xin Chen, Yue Zhang, Yuhuai He   +4 more
doaj   +1 more source

Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium [PDF]

, 2019
© This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4 ...
Niendorf, Thomas, Sajadifar, Seyed Vahid, Wegener, Thomas, Yapici, Guney Guven   +3 more
core   +2 more sources

Simulation of Deformation-induced Martensite Formation and its Influence on the Resonant Behavior in the Very High Cycle Fatigue (VHCF) Regime

Procedia Materials Science, 2014
AbstractThe exploration of fatigue mechanisms in the VHCF regime is gaining importance since many components have to withstand a very high number of loading cycles due to high frequency or long product life. In this regime, particular attention is paid to the period of fatigue crack initiation and thus the localization of plastic deformation.
Hilgendorff, P.-M., Grigorescu, A., Zimmermann, M., Fritzen, C.-P., Christ, H.-J.   +4 more
openaire   +1 more source

Correlation of Crack Initiation Parameters with Life Estimation for Very-High-Cycle Fatigue of High Strength Steels [PDF]

The researches on the behavior of very-high-cycle fatigue (VHCF) for high strength steels have become a new branch in the field of metal fatigue since 1980s.
Aiguo Zhao, Chengqi Sun, Youshi Hong
core   +2 more sources

Crack growth from internal defects and related size-effect in VHCF [PDF]

, 2017
It is well-known in the literature that fatigue cracks in VHCF originate from small internal defects. More than 95% of the total VHCF life is consumed in originating the so-called Fine Granular Area (FGA) around the small initial defect.
Chiandussi, Giorgio, Paolino, Davide Salvatore, Rossetto, Massimo, Tridello, Andrea   +3 more
core   +1 more source

Variations of VHCF Characteristics by Microstructure of a Spring Steel to UNSM Treatment

한국해양공학회지
The bainitic structure resulting from the austempering of spring steel exhibits high strength and ductility. On the other hand, there appears to be no study on the effects of very high cycle fatigue (VHCF) and ultrasonic nanocrystal surface modification (
Seung-Hoon Nahm, Min-Soo Suh, Chang-Min Suh   +2 more
doaj   +1 more source

Fatigue life time modelling of Cu and Au fine wires

MATEC Web of Conferences, 2018
In this study, the influence of microstructure on the cyclic behaviour and lifetime of Cu and Au wires with diameters of 25μm in the low and high cycle fatigue regimes was investigated.
Khatibi Golta, Mazloum-Nejadari Ali, Lederer Martin, Delshadmanesh Mitra, Czerny Bernhard   +4 more
doaj   +1 more source

Ratcheting Behaviour of Nano-Scale Copper by Classical Molecular Dynamics Simulations [PDF]

, 2013
The aim of this investigation is to study the tensile and fatigue behavior of nanoscale copper at various temperatures through simulations based on molecular dynamics.
., Divya, Kamal, Zeba
core  

Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion

Crystals
Additive manufacturing (AM) or 3D printing is a promising industrial technology that enables rapid prototyping of complex configurations. Powder Bed Fusion (PBF) is one of the most popular AM techniques for metallic materials.
Chun Gao, Yang Zhang, Jingjiang Jiang, Rui Fu, Leiming Du, Xiangnan Pan   +5 more
doaj   +1 more source

Predicting Fatigue Life of 51CrV4 Steel Parabolic Leaf Springs Manufactured by Hot-Forming and Heat Treatment: A Mean Stress Probabilistic Modeling Approach

Metals
The longevity of railway vehicles is an important factor in their mechanical and structural design. Fatigue is a major issue that affects the durability of railway components, and, therefore, knowledge of the fatigue resistance characteristics of ...
Vítor M. G. Gomes, Miguel A. V. de Figueiredo, José A. F. O. Correia, Abílio M. P. de Jesus   +3 more
doaj   +1 more source