Results 51 to 60 of about 321 (170)

Microstructure, Defects, and Fatigue Response of High‐Strength Tool Steels

steel research international, EarlyView.
The martensitic tool steel family is designed for use in various working environments where they are subjected to repeatedly high mechanical loads. Despite the continuous upgrade of material´s microstructures through compositional development or processing techniques, defects remain a critical factor for the tool performance by leading to fatigue ...
Katerina Chantziara, Jens Bergström, Dimitrios Nikas, Mikael Thomas Grehk   +3 more
wiley   +1 more source

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

Metals, 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, Davide Paolino, Francesco Montagnoli, Andrea Tridello, Alberto Carpinteri   +4 more
doaj   +1 more source

Numerical analysis of vhcf cruciform test specimens with non-unitary biaxiality ratios [PDF]

International Journal of Computational Methods and Experimental Measurements, 2019
With the development of new materials, it is now known that there is no such thing as a fatigue endurance limit, i.e., materials do not have infinite life when the stress level is such that there is no fracture up to 10 million (1E7) cycles. The problem of testing materials above this number of cycles is that most testing equipment operates well below ...
Montalvão, Diogo, Blaskovics, A., Costa, P., Reis, L., Freitas, M.   +4 more
openaire   +2 more sources

FATIGUE BEHAVIOR OF TWO-PHASE TITANIUM ALLOY IN VHCF REGIME

, 2017
This paper is focused on fatigue crack initiation and early growth in two-phase titanium alloy VT3-1 (similar to Ti-6Al-4V) under VHCF loads. The material was produced by two different processes: forging and extrusion. Each kind of material was investigated under three different loading types (push-pull, pull-pull and fully reversed torsion).
Nikitin, Alexander, Shanyavskiy, Andrey, Palin-Luc, Thierry   +2 more
openaire   +3 more sources

Using Multiple Regression Models and Methods to Estimate Fatigue‐Life Distributions and Construct Constant‐Life Diagrams

Applied Stochastic Models in Business and Industry, Volume 42, Issue 2, March/April 2026.
ABSTRACT Fatigue is the most common reliability failure mechanism and has been studied widely since the 19th century. Material specimens are used in laboratory experiments to obtain fatigue test data. An S‐N curve is used to depict the relationship between the stress (or strain) S$$ S $$ and the number of cycles to failure N$$ N $$. Statistical methods
Diaz F. Aksioma, William Q. Meeker, Huaiqing Wu   +2 more
wiley   +1 more source

Effect of long-period stacking ordered structure on very high cycle fatigue properties of Mg-Gd-Y-Zn-Zr alloys

Journal of Magnesium and Alloys, 2023
Magnesium alloys with a long-period stacking ordered (LPSO) structure usually possess excellent static strength, but their fatigue behaviors are poorly understood. This work presents the effect of the LPSO structure on the crack behaviors of Mg alloys in
Xiangyu WANG, Chao HE, Xue Li, Lang LI, Yongjie LIU, Qingyuan WANG   +5 more
doaj   +1 more source

Carbon‐Driven Enhancement in Zinc Hexacyanoferrate Composites: A Ball‐Milling Approach for High‐Performance Zn‐Ion Batteries

ChemElectroChem, Volume 12, Issue 20, October 16, 2025.
Structural modification of ZnHCF cathodes via ball‐milling and carbon addition significantly enhances the electrochemical performance of aqueous zinc‐ion batteries, achieving capacities close to 100 mAh g−1. The synergistic effect of carbon with ZnHCF preserves the crystalline structure and facilitates phase transitions, greatly improving the cathode's
Mario García‐Rodríguez, Esteban A. Toledo‐Carrillo, Joydeep Dutta, Diego Cazorla‐Amorós, Emilia Morallón   +4 more
wiley   +1 more source

Influences on the Fatigue Strength of Laser‐Welded High‐Purity Copper Connections

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 10, Page 4148-4160, October 2025.
ABSTRACT Due to their excellent conducting properties, components made of high‐purity copper are increasingly being used in the field of electrified applications. In particular for components with welded joints made of high‐purity copper, there is still no computational basis for evaluating the fatigue strength of these joints.
Matthias Lauf, Stefan Pruy, Christian Hollmann, Peter Hantschke, Markus Kästner   +4 more
wiley   +1 more source

Very High Cycle Fatigue Performance of Ductile Cast Iron With Different Microstructures

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 9, Page 3950-3966, September 2025.
ABSTRACT The very high cycle fatigue performance of four ductile cast irons, a solid solution strengthened ferritic, ferritic‐pearlitic, and two austempered ductile cast irons, was investigated by ultrasonic fatigue testing under fully reversed loading conditions. The step‐stress fatigue testing method incorporating re‐use of runouts was employed, with
Max Ahlqvist, Kenneth Weddfelt, Daniel Leidermark, Viktor Norman   +3 more
wiley   +1 more source

Experimental on ultrahigh frequency vibration fatigue of GH4169 nickel-based superalloy

Journal of Aeronautical Materials
To address the very high cycle fatigue（VHCF）issue of GH4169 nickel-based superalloy，which is widely utilized in aero-engines，a fatigue specimen subjected to 20 kHz ultrahigh frequency vibration is designed and tested utilizing a piezoelectric ultrasonic ...
WANG Zhaohan, PAN Kai, CHEN Yonghui, HANG Chao, WANG Yongjie, YAN Qun   +5 more
doaj   +1 more source