Results 21 to 30 of about 14,338 (208)

Calorimetric Studies and Self-Heating Measurements for a Dual-Phase Steel Under Ultrasonic Fatigue Loading [PDF]

open access: yes, 2016
The objective of the present research is to study the self-heating behavior of a dual-phase (DP) steel under ultrasonic fatigue loading and to investigate the effect of frequency on intrinsic heat dissipation of the material.
Saeed Ziaei-Rad   +11 more
core   +1 more source

Research on Residual Life Estimation Method for KMN Steel Based on Nonlinear Ultrasonic Testing

open access: yesApplied Sciences, 2021
The testing of KMN steel bending fatigue with different cycles was carried out using a nonlinear ultrasonic detector to obtain its nonlinear coefficient. The experimental results show that the nonlinear coefficient first increases and then decreases with
Pengfei Wang   +3 more
doaj   +1 more source

Thermal response of DP600 dual-phase steel under ultrasonic fatigue loading [PDF]

open access: yes, 2016
The present work employed in situ infrared thermography to investigate the thermal response and dissipative mechanisms of a dual-phase steel under ultrasonic tension-compression fatigue testing. A classical thermal response occurred for stress amplitudes
RANC, Nicolas   +5 more
core   +1 more source

Ultrasonic and Conventional Fatigue Endurance of Aeronautical Aluminum Alloy 7075-T6, with Artificial and Induced Pre-Corrosion

open access: yesMetals, 2020
Ultrasonic and conventional fatigue tests were carried out on the AISI-SAE AA7075-T6 aluminum alloy, in order to evaluate the effect of artificial and induced pre-corrosion.
Ishvari F. Zuñiga Tello   +3 more
doaj   +1 more source

Surface integrity and fatigue life of Inconel 718 by ultrasonic peening milling

open access: yesJournal of Materials Research and Technology, 2023
Inconel 718 is widely used in aeroengine hot end parts, such as turbine disks, blades, drive shafts and so on. Its excellent mechanical and thermal properties also lead to the poor machinability, poor surface integrity, thus affecting the fatigue life of
Xiaoming Yin   +4 more
doaj   +1 more source

Non-contact ultrasonic detection of angled surface defects [PDF]

open access: yes, 2011
Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
A.R. Clough   +7 more
core   +1 more source

Nonlinear ultrasonic modulation based failure warning for aluminum plates subject to fatigue loading

open access: yes, 2022
S.130-137This study presents an online fatigue crack failure warning system that can provide a warning of imminent failure of an aluminum plate structure with an initial notch when the plate is subject to constant-amplitude cyclic loading.
Sohn, Hoon, Lim, Hyung Jin, Kim, Yongtak
core   +1 more source

Effect of Ultrasonic Shot Peening on the Microstructure and Fatigue Properties of FGH99 Alloy [PDF]

open access: yesCailiao Baohu
In order to improve the high-temperature performance of turbine discs, an ultrasonic shot peening test was conducted on FGH99 alloy for turbine discs.The microstructure and fatigue properties of FGH99 alloy after ultrasonic shot peening treatment were ...
SONG Yinggang, LUO Xuekun, WANG Xin, FENG Yefei, TIAN Gaofeng
doaj   +1 more source

Potential fatigue strength improvement of AA 5083-H111 notched parts by wire brush hammering: Experimental analysis and numerical simulation [PDF]

open access: yes, 2014
The effects of milling as machining process and a post-machining treatment by wire-brush hammering, on the near surface layer characteristics of AA 5083-H111 were investigated.
SIDHOM, Habib   +4 more
core   +1 more source

Estimation of stress in specimens loaded with ultrasonic fatigue machines [PDF]

open access: yes, 2021
International audiencePiezo-electric ultrasonic fatigue machines are used to carry out fatigue tests more rapidly than what is possible using other technologies, at a frequency of .
VINCI, Doriana   +12 more
core   +1 more source

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