Results 81 to 90 of about 53,800 (254)

A Novel Ultrasonic Fatigue Test and Application in Bending Fatigue of TC4 Titanium Alloy. [PDF]

Materials (Basel), 2022
Tang S, Wang X, Huang B, Yang D, Li L, He C, Xu B, Liu Y, Wang C, Wang Q.   +9 more
europepmc   +1 more source

A match coefficient approach for damage imaging in structural components by ultrasonic synthetic aperture focus [PDF]

, 2017
Ultrasonic Synthetic Aperture Focus (SAF) techniques are commonly used to image structural defects. In this paper, a variation of SAF based on ideas borrowed from Matched Field Processing (MFP) is evaluated to reduce artifacts and sidelobes of the ...
Lanza di Scalea, F., Montanini, R, Pau, Annamaria, Quattrocchi, A, Sternini, S   +4 more
core   +1 more source

Ultrasonic fatigue of superelastic Nitinol and in situ synchrotron observation of strain and damage

Journal of Materials Research and Technology
Superelastic Nitinol was tested at ultrasonic frequency in the high and very high cycle fatigue regime. Thin sheet specimens were initially preloaded to mimic crimping and deployment of Nitinol implants, which lead to a sample in a multi-phase state with
M. Fitzka, H. Rennhofer, D. Catoor, M. Reiterer, S. Checchia, M. di Michiel, H.C. Lichtenegger, H. Mayer   +7 more
doaj   +1 more source

Fatigue and Vibration Parameters Improvement of Steel DIN 41Cr4 by Ultrasonic Shock Peening Treatment

مجلة النهرين للعلوم الهندسية, 2019
The effects of the ultrasonic peening treatment (UPT) on the rotating bending fatigue behavior and the behavior of the vibrations of alloy steel DIN 41Cr4 were studied.
Zeina Shaker Mahmood, Jumaa Salman Chiad
doaj   +1 more source

Ultrasonic Fatigue Testing of Structural Steel S275JR+AR with Insights into Corrosion, Mean Stress and Frequency Effects. [PDF]

Materials (Basel), 2023
Gorash Y, Comlekci T, Styger G, Kelly J, Brownlie F, Milne L.   +5 more
europepmc   +1 more source

Improving Linear Weld Density in Ultrasonically Consolidated Parts [PDF]

, 2006
Ultrasonic consolidation is a novel additive manufacturing process with immense potential for fabrication of complex shaped three-dimensional metallic objects from metal foils.
George, J., Ram, G. D. Janaki, Robinson, C., Stucker, B. E., Yang, Y.   +4 more
core   +1 more source

Properties of GH4169 Superalloy Characterized by Nonlinear Ultrasonic Waves

Advances in Materials Science and Engineering, 2015
The nonlinear wave motion equation is solved by the perturbation method. The nonlinear ultrasonic coefficients β and δ are related to the fundamental and harmonic amplitudes.
Hongjuan Yan, Chunguang Xu, Dingguo Xiao, Haichao Cai   +3 more
doaj   +1 more source

Research of rotating and ultrasonic cycling fatigue in high-cycle regimes

Journal of Aeronautical Materials
The effects of stress ratio（R），loading condition，and MnS inclusion on the fatigue behavior of medium-carbon pearlitic high strength steel were investigated by the combination of rotating（frequency of 52.5 Hz，103-108）bending and ultrasonic （frequency of ...
LIU Lu, WANG Shengnan, MA Yifan
doaj   +1 more source

Gradient crystalline structure induced by ultrasonic impacting and rolling and its effect on fatigue behavior of TC11 titanium alloy

Results in Physics, 2017
Gradient crystalline structure in surface layer of TC11 titanium alloy was obtained through ultrasonic impacting and rolling process. Microstructure, work hardening state, residual stress distribution, and surface roughness in modified layer were ...
Xiaohui Zhao, Guilian Xue, Yu Liu
doaj   +1 more source

Influence of atmospheric moisture on slow fatigue crack growth at ultrasonic frequency in aluminium and magnesium alloys [PDF]

, 2002
M. Papakyriacou, H. Mayer, Uwe Fuchs, Stefanie E. Stanzl‐Tschegg, Robert P. Wei   +4 more
openalex   +1 more source