Results 61 to 70 of about 3,863 (228)

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

open access: yesمجلة 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

Salt-Fog Corrosion Behavior of GCr15 Steels Treated by Ultrasonic Strengthening Grinding Process

open access: yesApplied Sciences, 2022
In this paper, the corrosion resistance of four GCr15 steel samples has been investigated. Three samples were initially surface-treated by ultrasonic shot peening (USP), a dry ultrasonic strengthening grinding process (DUSGP), and a wet ultrasonic ...
Xincheng Xie   +6 more
doaj   +1 more source

Course on fatigue and fracture mechanics : influence of residual stresses and post-welding improvement methods [PDF]

open access: yes, 2001
Sumário da Lição, apresentada para Provas de Agregação em Engenharia Civil, especialidade de Mecânica das Estruturas e dos Materiais, da Faculdade de Ciências e Tecnologia da Universidade de ...
Nussbaumer, Alain
core   +1 more source

Additive Processing of Ti‐17 by Wire Arc Directed Energy Deposition: An Investigation of the Microstructure and Mechanical Properties

open access: yesAdvanced Engineering Materials, Volume 27, Issue 23, December 2025.
This study focuses on processing the titanium alloy Ti‐17 using wire arc directed energy deposition (waDED), with an emphasis on the microstructure and mechanical properties. The waDED typical heat‐affected zone banding is characterized and related to the local mechanical properties.
Alexander Wenda   +7 more
wiley   +1 more source

Design, Manufacture and Prospects of Heterostructured Materials

open access: yescMat, Volume 2, Issue 4, December 2025.
ABSTRACT Heterostructured materials, characterized by distinct microstructures and mechanical properties across different micro‐regions, have consistently demonstrated their ability to effectively mitigate the strength‐ductility trade‐off in structural materials.
Di Wu, Runlian Li, Tianlong Zhang
wiley   +1 more source

Study on the effect of surface composite strengthening on the surface integrity of 18CrNiMo7-6 carburized gear steel

open access: yesJixie qiangdu
Shot peening process is widely used in the manufacturing process of gears and other basic components, and its own limitations limit the enhancement of the surface integrity of the workpiece.
WANG Zhen   +5 more
doaj   +2 more sources

High Power RF Induced Thermal Fatigue in the High Gradient CLIC Accelerating Structures [PDF]

open access: yes, 2007
The need for high accelerating gradients for the CLIC (Compact Linear Collider) imposes considerable constraints on the materials of the accelerating structures.
Arnau-Izquierdo, G   +4 more
core  

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

open access: yesAdvanced Engineering Materials, Volume 27, Issue 22, November 2025.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos   +8 more
wiley   +1 more source

Effects of different peening techniques on residual stress and microstructure in nickel-base alloy 600 and 690

open access: yesNuclear Engineering and Technology
To evaluate their peening effects, nickel-based alloy 600 and 690 were subjected to treatments including water jet peening (WJP), underwater laser peening (ULP), air laser peening (ALP), and ultrasonic nanocrystal surface modification (UNSM).
Baosheng Bai   +6 more
doaj   +1 more source

Influence of ultrasonic peening on microstructure and surface performance of laser-arc hybrid welded 5A06 aluminum alloy joint

open access: yesJournal of Materials Research and Technology, 2020
In this study, laser-arc hybrid welding of 5A06 aluminum alloys was performed firstly. To improve the surface quality of welded joints, ultrasonic peening (UP) process was employed.
Biao Yang   +7 more
doaj   +1 more source

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