Results 61 to 70 of about 272 (163)

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

Bending fatigue behavior of metastable and stable austenitic stainless steels with different surface morphologies

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 12, Page 4755-4770, December 2024.
Abstract The surface morphology has a significant influence on the fatigue behavior of components. For austenitic stainless steels (ASSs), this issue is even more pronounced due to their metastability. Based on the complex deformation mechanisms of metastable ASSs, which include dislocation slip, deformation twinning, and deformation‐induced ...
Tong Zhu, Marek Smaga, Mustafa Bozoglu, Siva Teja Sala, Nikolai Kashaev, Sergiy Antonyuk, Tilmann Beck   +6 more
wiley   +1 more source

On the notch sensitivity of as‐built Laser Beam Powder Bed–Fused AlSi10Mg specimens subjected to Very High Cycle Fatigue tests at ultrasonic frequency up to 109 cycles

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 11, Page 4356-4371, November 2024.
Abstract The notch effect significantly influences the fatigue response of components and is particularly relevant for parts produced with additive manufacturing (AM) processes, characterized by complex geometries and possible geometric discontinuities inducing local and critical peak stresses.
Andrea Tridello, Carlo Boursier Niutta, Alessandro Benelli, Ana Paula Pagnoncelli, Massimo Rossetto, Filippo Berto, Davide Salvatore Paolino   +6 more
wiley   +1 more source

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

Fracture and Structural Integrity, 2015
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  

Numerical investigation of the influence of shear band localization on the resonant behavior in the VHCF regime

Theoretical and Applied Mechanics Letters, 2014
The monitored resonant behavior of fatigue specimens of metastable austenitic stainless steel (AISI304) is correlated with its damage accumulation in the very high cycle fatigue (VHCF) regime.
Philipp-M. Hilgendorff, Andrei Grigorescu, Martina Zimmermann, Claus-P. Fritzen, Hans-J. Christ   +4 more
doaj   +1 more source

The Effect of Microstructure on the Very High Cycle Fatigue Behavior of Ti-6Al-4V Alloy

Metals
Crack initiation plays a major role in very high cycle fatigue (VHCF) life, and the initiation of cracks is related to slip behavior. There is a need for improvement in the understanding of the influence of Ti-6Al-4V microstructures on VHCF performance ...
Mingyang Yuan, Xinbao Zhao, Quanzhao Yue, Yuefeng Gu, Ze Zhang   +4 more
doaj   +1 more source

Effect of Artificial Defects on the Very High Cycle Fatigue Behavior of 316L Stainless Steel

Metals, 2019
Widely used for structural materials in nuclear engineering, 316L austenitic stainless steel undergoes very high cycle fatigue (VHCF) throughout its service life.
Zhihong Xiong, Takashi Naoe, Masatoshi Futakawa   +2 more
doaj   +1 more source

Very HIgh Cycle Fatigue (VHCF) behavior of high strength alloys : A literature review

, 2023
Very High Cycle Fatigue (VHCF) response of metallic materials is considered of significance importance, particularly for high- demanding applications. Since it is proved that most of the engineering materials do not exhibit a conventional fatigue limit, but rather display a continuously decreasing stress-life response at longer lifetimes. Consequently,
openaire   +1 more source

Redesigning axial-axial (biaxial) cruciform specimens for very high cycle fatigue ultrasonic testing machines

Heliyon, 2017
The necessity to increase performances in terms of lifetime and security in mechanical components or structures is the motivation for intense research in fatigue. Applications range from aeronautics to medical devices.
Diogo Montalvão, Andrew Wren
doaj   +1 more source

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