Results 21 to 30 of about 321 (170)

Self-Regulating Sodium-Ion Battery Materials: From Phase Reconstruction to Functional Activation. [PDF]

Adv Mater
Self‐regulating sodium‐ion batteries hinge on programmable phase behavior in layered oxides, interphases that renew without growth, and electrolytes that steer solvation and chemistry. This review distills mechanisms into design rules that span composition, site and entropy tuning, and self‐buffering anodes, linking operando evidence to choices and ...
Gao H, Zhang D, Wang C, Chen T, Peng X, Xing Y, Guo X, Zhao Y, Wang Y, Wang G, Liu H.   +10 more
europepmc   +2 more sources

Ionic Liquid-Based Electrolyte with Multiple Hydrogen Bonding Network Enabling High-Voltage Stable Proton Batteries Across Wide Temperature Range. [PDF]

Adv Sci (Weinh)
An ionic liquid electrolyte with multilane hydrogen‐bond interactions is designed for stable, high‐voltage proton storage. Such enhanced hydrogen bond imparts rapid and stable electrochemical proton storage with a high operating voltage of 2 V. A symmetric full proton battery using the electrolyte achieves a maximum energy density of 87.5 Wh kg−1 and a
Dong X, Li Z, Xu H, Wu Z, Meng F, Liu S, Dou H, Zhang X.   +7 more
europepmc   +2 more sources

Very High Cycle Fatigue of Welds: A Review

Metals, 2023
The design life of welded structures and components extends into the very high cycle fatigue (VHCF) regime across various applications. However, the availability of data on the fatigue behaviour of welded joints in the VHCF regime is limited ...
Andrew England, Athanasios Toumpis, Yevgen Gorash   +2 more
doaj   +1 more source

A review of the research on the VHCF test technology for aero-engine typical materials

Hangkong gongcheng jinzhan, 2023
As the most critical and core part of the aircraft, the aero-engine has been serving in extreme environ-ment such as high temperature and high load for a long time. Fatigue failure is one of the main causes of engine structure failure.
WANG Zhaohan, YAN Qun, CHEN Yonghui, MU Qinqin, HANG Chao, XU Jian   +5 more
doaj   +1 more source

Crack growth behaviour of aluminium wrought alloys in the Very High Cycle Fatigue regime [PDF]

MATEC Web of Conferences, 2018
Investigations have shown that in the regime of Very High Cycle Fatigue (VHCF) “natural” crack initiation often takes place underneath the material surface leading to crack propagation without contact to atmospheric components.
Bülbül Fatih, Kirsten Tina, Wicke Marcel, Zimmermann Martina, Brückner-Foit Angelika, Christ Hans-Jürgen   +5 more
doaj   +2 more sources

Ultrasonic VHCF Tests on Very Large Specimens with Risk-Volume Up to 5000 mm³

Applied Sciences, 2020
The research on the size-effects in Very-High-Cycle Fatigue (VHCF) has recently drawn the attention of several scholars. The fatigue cracks in VHCF originate from the largest defect present within the loaded material volume (risk-volume) and the larger ...
Andrea Tridello, Davide Salvatore Paolino, Massimo Rossetto   +2 more
doaj   +1 more source

Ultra-high frequency vibration fatigue of DD6 single crystal superalloy simulating thin-walled specimens

Journal of Aeronautical Materials, 2023
The effect of specimen thickness on the very high cycle fatigue （VHCF） properties of DD6 nickel-based single crystal superalloys for turbine blades with hollow air-cooled structure was investigated. Based on the finite element method （FEM）, a thin-walled
GAO Zhiyuan, CHEN Haohui, CHEN Xin, ZHONG Chaofeng, ZHANG Yue, HU Jiangkun, XU Wei, HE Yuhuai   +7 more
doaj   +1 more source

VHCF of spray formed hypereutectic aluminium silicon alloy [PDF]

MATEC Web of Conferences, 2014
Ultrasonic fatigue experiments in the very high cycle fatigue (VHCF) regime are performed with spray-formed hypereutectic aluminium silicon alloy DISPAL® S232-T6x. DISPAL exhibits excellent mechanical properties with low weight and can achieve higher stiffness, greater high temperature strength, excellent wear resistance and a reduced coefficient of ...
Fitzka M., Mayer H., Schuller R., Stanzl-Tschegg S., Przeorski T., Krug P.   +5 more
openaire   +2 more sources

Surface or Internal Fatigue Crack Initiation during VHCF of Tempered Martensitic and Bainitic Steels: Microstructure and Frequency/Strain Rate Dependency

Metals, 2022
By means of comparing the VHCF response of heat-treated alloy steel, several factors governing the transition from surface (type I) to internal (type II) VHCF failure, and, in the case of internal inclusion and non-inclusion type II VHCF failure, are ...
Ulrich Krupp, Alexander Giertler
doaj   +1 more source

VHCF response of AM materials: A literature review [PDF]

Material Design & Processing Communications, 2019
The present paper is an overview of the recent experimental results on the Very High Cycle Fatigue (VHCF) response of materials produced through additive manufacturing (AM) processes. At present, VHCF tests have been carried out on AlSi12, AlSi10Mg, and Ti6Al4V specimens produced through AM processes (SLM and EBM).
Tridello, Andrea, Paolino, Davide S.
openaire   +3 more sources