Results 71 to 80 of about 826 (197)

Notch Effect on the Fatigue Behavior of a TC21 Titanium Alloy in Very High Cycle Regime

Applied Sciences, 2018
The very high cycle fatigue (VHCF) property of TC21 titanium alloy blunt-notched specimens were investigated by using an ultrasonic fatigue test machine with a frequency of 20 kHz.
Baohua Nie, Dongchu Chen, Zihua Zhao, Jianglong Zhang, Yu Meng, Guiyan Gao   +5 more
doaj   +1 more source

The significance of grain size, segregations and inclusions for the very high cycle fatigue (VHCF) behavior of tempered martensitic steels

Procedia Structural Integrity, 2019
Abstract High-loaded tempered steels, being used in mobility, power generation and plant engineering, are frequently exposed to very high numbers of loading cycles (up to 1 billion cycles). Optimization and fatigue testing for such conditions is challenging and difficult, since damage is concentrated to very small areas of local cyclic plasticity ...
Ulrich Krupp, Kevin Koschella, Alexander Giertler   +2 more
openaire   +1 more source

Fatigue Crack Segmentation and Characterization of Additively Manufactured Ti‐6Al‐4V Using X‐Ray Computed Tomography

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 1, Page 204-216, January 2025.
ABSTRACT X‐ray computed tomography (XCT) is extremely useful for the non‐destructive analysis of additively manufactured (AM) components. AM components often show manufacturing defects such as lack‐of‐fusion (LoF), which are detrimental to the fatigue life of components.
Bardia Hejazi, Amaya Compart, Tobias Fritsch, Ruben Wagner, Anja Weidner, Horst Biermann, Christopher Benz, Manuela Sander, Giovanni Bruno   +8 more
wiley   +1 more source

Piezoelectric driven testing facilities to research the very high cycle fatigue regime

, 2022
S.427 ...
Melz, Tobias, Axt, Christoph, Matthias, Michael, Kaufmann, Heinz, Fischer, C., Wagener, Rainer, Friedmann, Andreas   +6 more
core  

S–N curves established from limiting energy in the case of specimens additively manufactured from AlSi10Mg

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 12, Page 4771-4790, December 2024.
Abstract This study investigates the varying thermal response of additively manufactured specimens made of AlSi10Mg and subjected to cyclic loading. It is well known that the thermal response is driven primarily by the self‐heating effect. The paper explores the possibility of employing thermographic methods to establish an S–N curve for fatigue life ...
Martin Matušů, Jan Šimota, Jan Papuga, Jakub Rosenthal, Libor Beránek, Pedro Costa, Francisco Bumba, Luis Reis   +7 more
wiley   +1 more source

Effect of heat treatment on very-high-cycle fatigue performance of EA4T axle steel

Frontiers in Materials
The fatigue performance of EA4T (25CrMo4) axle steel was investigated using small-specimen rotating-bending tests up to 2 × 108 cycles to clarify how heat treatment affected high-cycle and very-high-cycle fatigue (HCF/VHCF) behavior. Five specimen groups,
Chun Gao, Chun Gao, Qingye Qiu, Dongqin Zhang, Shisen Liu   +4 more
doaj   +1 more source

Fatigue strength and crack initiation mechanism of very-high-cycle fatigue for low alloy steels

, 2012
The fatigue strength and crack initiation mechanisms of very-high-cycle fatigue (VHCF) for two low alloy steels were investigated. Rotary bending tests at 52.5 Hz with hour-glass type specimens were carried out to obtain the fatigue propensity of the ...
赵爱国, Zhao AG(赵爱国), Zhou CE(周承恩), Qian GA(钱桂安), 钱桂安, 周承恩, Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China., 洪友士, Hong YS(洪友士)   +8 more
core   +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

Very high cycle fatigue of duplex stainless steels and stress intensity calculations [Elektronisk resurs]

, 2014
Very high cycle fatigue (VHCF) is generally considered as the domain of fatigue lifetime beyond 10 million (107) load cycles. Few examples of structural components which are subjected to 107-109 load cycles during their service life are engine parts ...
Tofique, Muhammad Waqas,, Bergström, Jens,, Moverare, Johan,, Hallbäck, Nils,, Gåård, Anders,   +4 more
core  

VERY HIGH CYCLE FATIGUE (VHCF) BEHAVIOR OF AUSTENITC STAINLESS STEELS AND THEIR WELDS FOR REACTOR INTERNALS AT AMBIENT AND OPERATING RELEVANT TEMPERATURE

, 2022
The fatigue assessment of safety relevant components is of importance for ageing management with regard to safety and reliability of nuclear power plants. Austenitic stainless steels are often used for reactor internals due to their excellent mechanical and technological properties as well as their corrosion resistance.
Smaga, Marek, Daniel, Tobias, Regitz, Elen, Beck, Tillmann, Schopf, Tim, Veile, Georg, Weihe, Stefan, Rudolph, Jürgen, Fischer, Udo   +8 more
openaire   +1 more source