Results 61 to 70 of about 266 (165)

On the Post‐Processing of Complex Additive Manufactured Metallic Parts: A Review

open access: yesAdvanced Engineering Materials, Volume 26, Issue 10, May 2024.
This review outlines the significance of post‐processing in additive manufacturing to enhance surface quality, especially for complex geometries. It categorizes various methods—electrochemical polishing, chemical polishing, mechanical polishing, and hybrids—assessing their effectiveness in improving surface roughness.
Shamim Pourrahimi, Lucas A. Hof
wiley   +1 more source

Evaluation of fatigue crack propagation in surface modification layer of duralumin treated by various peening

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Peening techniques are used to introduce the compressive residual stress into the surface of metallic materials in order to improve the fatigue properties.
Tomoyuki KOKUBUN, Hitoshi SOYAMA
doaj   +1 more source

Effect of shot peening on fatigue behavior and microstructure of additively manufactured Co‐Cr‐Mo alloy

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 1, Page 240-253, January 2024.
Abstract This investigation delved into the impact of shot peening on the fatigue properties of Co‐Cr‐Mo samples manufactured through laser powder bed fusion. Two primary groups were established, one subjected to stress relief heat treatment. Each group underwent further division, with one subgroup undergoing shot peening. Comprehensive microstructural,
Erdogan Polat, Ibrahim Etem Saklakoglu
wiley   +1 more source

Multifunction cavitation technology to improve the surface function of Al – Cu alloy

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2019
Multifunction cavitation (MFC) combines ultrasonic cavitation technology and water jet peening (WJP) technology. In this processing technique, it has been reported that the residual stress necessary for improving the fatigue strength on the pure Al ...
Masataka Ijiri   +7 more
doaj   +1 more source

Coupling bubble and material dynamics to model cavitation peening and pitting

open access: yesJournal of Fluid Science and Technology, 2016
The effects of cavitation bubble dynamics on material peening and pitting is investigated numerically using a coupled fluid and material dynamics approach. The model is applied here to the study of peening and pitting of metallic materials resulting from
Georges L. CHAHINE   +3 more
doaj   +1 more source

Suppression of hydrogen invasion into austenitic stainless steel by means of cavitation peening

open access: yesNihon Kikai Gakkai ronbunshu, 2015
It has been demonstrated in the present paper that compressive residual stress introduced by cavitation peening can prevent hydrogen invasion into surface of austenitic stainless steel JIS SUS316L. The specimen was treated by cavitation peening employing
Osamu TAKAKUWA   +2 more
doaj   +1 more source

Stress Relaxation Behavior of Cavitation-Processed Cr–Mo Steel and Ni–Cr–Mo Steel

open access: yesApplied Sciences, 2019
Cr–Mo steel and Ni–Cr–Mo steel have higher strength and hardness than carbon steel, and they are occasionally used in harsh environments where high temperatures and high pressures are simultaneously applied in an oxidizing gas atmosphere.
Kumiko Tanaka   +4 more
doaj   +1 more source

Numerical simulation of a water cavitation jet peening

open access: yes, 2021
Shot peening is commonly used as an effective method to extend the service life of parts and reduce the residual tensile stresses. The main principle of this surface treatment method is to introduce compressive residual stresses into parts, thereby preventing the crack-propagation.
Han, Zhaofeng   +5 more
openaire   +1 more source

The improvement of the surface hardness of stainless steel and aluminium alloy by ultrasonic cavitation peening

open access: yesEPJ Web of Conferences, 2017
This article presents first results of the experimental investigation of the influence of the cavitation shot less peening process on the properties of stainless steel and aluminium alloy specimens.
Janka Styková   +2 more
doaj   +1 more source

Evaluation of rendering fatigue crack harmless using needle peening for hydraulic turbine runner of stainless cast steel SCS6

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In hydraulic turbine runners, accidents due to cyclic loading often occur, which are caused by large defects and residual stress introduced while making welding repairs of a part eroded by cavitation. In this study, we have aimed at improving the fatigue
Yoshiichirou HAYASHI   +2 more
doaj   +1 more source

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