Results 161 to 170 of about 1,044 (205)
Some of the next articles are maybe not open access.
International Journal of Computational Materials Science and Surface Engineering, 2013
This paper gives a brief overview of published results pertinent to ultrasonic shot peening, a relatively new method to introduce severe plastic deformations in the surface of materials and obtain nanosized grains. Among reported benefits are increased surface hardness and fatigue resistance, and possibility to perform nitriding at lower temperatures ...
Qingyou Han, Yanxiong Liu, Fei Yin
exaly +2 more sources
This paper gives a brief overview of published results pertinent to ultrasonic shot peening, a relatively new method to introduce severe plastic deformations in the surface of materials and obtain nanosized grains. Among reported benefits are increased surface hardness and fatigue resistance, and possibility to perform nitriding at lower temperatures ...
Qingyou Han, Yanxiong Liu, Fei Yin
exaly +2 more sources
Overview of ultrasonic shot peening
Surface Engineering, 2017Ultrasonic shot peening (USP) is acknowledged as an effective surface treatment method to enhance the mechanical performance of materials by inducing compressive residual stress in solid metals and alloys. This article overviews recent researches from our group at Purdue University on the USP in the aspects of modelling the kinetics of the shots ...
Fei Yin, Shan Hu, Qingyou Han
exaly +2 more sources
Peening the tip of a notch using ultrasonic cavitation
Ultrasonics, 2018A peening technique using ultrasonic cavitation was proposed to peen the tip of deep notches. The working theory of the present peening technique for the notch tip was described and numerically demonstrated. An experiment using a deep notch shape and an ultrasonic loading with a frequency of 20kHz achieved noticeable compressive residual stresses at ...
Sunghwan Jung, Hyungyil Lee
exaly +3 more sources
Random Approach to Peening Coverage in Ultrasonic Shot-Peening
Materials and Manufacturing Processes, 1995Abstract The so-called ultrasonic shot-peening is a new process using calibrated peening hard balls motioned by walls vibrating at 20000 Hz. As in conventional shot-peening, a fully peened surface coverage is required tor the process to be efficient. However, it is intricate to determine the coverage ratio experimentally. A statistical approach, issued
H. Chardin +3 more
openaire +1 more source
Modelling of the Ultrasonic Shot Peening Process
Materials Science Forum, 2005The aim of this work is to reach a better understanding of the ultrasonic shot-peening process and, in particular, the evolution of the shot speed distribution. A simple 1D modelling of the interaction between the shots and the sonotrode is carried out.
Pilé, C. +4 more
openaire +3 more sources
Capability evaluation of ultrasonic cavitation peening at different standoff distances
Ultrasonics, 2018Ultrasonic cavitation peening is a novel surface treatment technology which utilizes the effect of cavitation bubble collapses to improve the properties of metal surfaces. In order to obtain high impact during ultrasonic cavitation peening, a small standoff distance between a sound radiator and a rigid reflector (the surface of treated specimen) is ...
Fushi Bai +2 more
exaly +3 more sources
Surface Nanocrystallization of Pure Ni Induced by Ultrasonic Shot Peening
Science of Advanced Materials, 2014Peening is mainly used as a method of surface treatment for microstructural modification in order to improve surface mechanical properties. The ultrasonic shot peening (USP) technique can cause severe plastic deformation with its high strain rate on the surface of metallic parts.
Kejian, Li +9 more
openaire +2 more sources
Shot Peening, Ultrasonically Activated
2017<div class="section abstract"> <div class="htmlview paragraph">This specification covers the requirements for inducing compressive residual stresses on the surface of metal parts using ultrasonically activated shot peening.</div></div>
openaire +2 more sources
Ultrasonic impact peening for the surface properties’ management
Journal of Sound and Vibration, 2007Abstract It is demonstrated that the ultrasonic impact peening (UIP) technique is a beneficial method for essential increase in the fatigue durability of metallic materials due to the surface nanocrystallization and hardening process provided for severe plastic deformation of surface via multiple impacts of high velocity impact pins. Nano-scale grain
Bohdan N. Mordyuk, Georgiy I. Prokopenko
openaire +1 more source
Research on Stability of Panel Ultrasonic Peening Forming
Key Engineering Materials, 2016Ultrasonic peening forming (UPF) is a newly developed sheet metal forming technology which has been applied in the aerospace engineering. It has the advantages of low equipment cost, portability, no pollution and excellent comprehensive performance of the material after being formed.
Shi Hong Lu +4 more
openaire +1 more source