Results 41 to 50 of about 4,400 (278)

Modelling of multiple impacts for the prediction of distortions and residual stresses induced by ultrasonic shot peening (USP) [PDF]

, 2012
During a manufacturing process, the ultrasonic shot peening (USP) technique can be used as the final surface treatment. The aim of this operation is to introduce surface compressive residual stresses in order to prevent crack propagation advancement ...
Taheri, Sahid, TAHERI, Said, ROBIN, Vincent, Jun, Li, DOUCHET, Gérard, Gilles, Phillipe, NELIAS, Daniel, LI, Jun, GILLES, Philippe, KUBLER, Regis, CHAISE, Thibaut   +10 more
core   +1 more source

Residual Stress in Wheels: Comparison of Neutron Diffraction and Ultrasonic Methods, with Trends in RCF

, 2014
The critical damage mechanism on many GB passenger train wheels is Rolling Contact Fatigue (RCF) cracking in the rim. Evidence from field observations suggests that RCF damage occurs much more quickly as the wheelsets near the end of their life.
Bevan, Adam, Bevan, A. J., Kabra, S, Zhang, S. Y, Molyneux-Berry, P. B., Molyneux-Berry, Paul, Zhang, S. Y., Kabra, S.   +7 more
core   +1 more source

Improving the Surface Friction and Corrosion Resistance of Magnesium Alloy AZ31 by Ion Implantation and Ultrasonic Rolling

, 2022
The use of the magnesium alloy AZ31 is common in aviation and biomedicine; however, this alloy has poor friction and corrosion resistance. Here, mechanical grinding, ultrasonic rolling, and ultrasonic rolling + ion implantation were performed on the ...
Zhongyu Dou, Tianye Luo, Rongfei Ao, Haili Jiang, Dianxi Zhang   +4 more
core   +1 more source

Study on surface residual stress of 42CrMo steel treated by ultrasonic rolling extrusion

Scientific Reports, 2023
AbstractTo obtain the distribution law of residual stress of 42CrMo steel processed by ultrasonic rolling extrusion process (UREP), according to the characteristics of the material treated by ultrasonic rolling extrusion process, 42CrMo steel quasi-static experiment and dynamic experiment are carried out, the improved Johnson–Cook model was proposed ...
Haojie Wang, Xiaoqiang Wang, Yingjian Tian, Yuanfei Ling   +3 more
openaire   +3 more sources

Improvement of surface properties of alloy constructional steel with ultrasonic composite strengthening modification

Results in Materials, 2022
The key components of the automatic gun are subjected to the severe working condition of high temperature, transient state and continuous strong impact load in the shooting process, the surface of which using the alloy constructional steel is prone to ...
Dan Liu, Shiming Zhang, Yalin Shen, Lun Lin, Yongqiang Yuan, Chao Meng, Xiaohui Li   +6 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Simulation study of turning-ultrasonic rolling compound processing for 42CrMo steel

Scientific Reports
The ultrasonic rolling processing technology has been shown to significantly reduce surface roughness and enhance the residual stress of parts, thereby improving their surface properties and extending their service life.
Haojie Wang, Xiaoqiang Wang, Yingjian Tian, Yuanfei Ling   +3 more
doaj   +1 more source

Research on the Influence Law of Ultrasonic Rolling Passes on the Tension-Tension Fatigue Properties of AZ31B Magnesium Alloy [PDF]

Cailiao Baohu
In order to improve the fatigue performance of AZ31B magnesium alloy under high-stress levels and reveal the related mechanism，ultrasonic rolling process was used to roll it for different passes (2/4/6).Subsequently， the fatigue life， surface roughness ...
SUN Xingzi, LI Shunlong, CHEN Qingqiang, SUN Jie, QI Xinchun, LU Laixiao
doaj   +1 more source

Effect of Ultrasonic Rolling on the Organization and Properties of a High-Speed Laser Cladding IN 718 Superalloy Coating

Crystals, 2023
To repair or improve the performance of H13 hot working molds through the additive manufacturing process, IN 718 was coated on H13 die steel by high-speed laser cladding followed by an ultrasonic surface rolling process (USRP).
Jingbin Hao, Qingwei Niu, Haowen Ji, Hao Liu   +3 more
doaj   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source