Results 141 to 150 of about 19,781 (191)

Study on Ultrasonic Surface Rolling Process Using FEM Analysis

Advanced Materials Research, 2011
Ultrasonic surface rolling processing (USRP) is a surface nanocrystallization method developed recently, which can bring metal surface with superior properties. In order to obtain the material response during USRP, a 3D dynamic finite element model was adopted to study the effects of parameters.
Yu Liu, Li Jun Wang, Dong Po Wang
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Coordinated bilateral ultrasonic surface rolling process on aero-engine blades

The International Journal of Advanced Manufacturing Technology, 2019
Security and performance of aircraft engines are extremely affected by the blades’ surface quality. Ultrasonic surface rolling process (USRP) can improve material surface properties effectively and increase the alloys’ service life. However, applying USRP onto blades remains a challenge due to the free-form surface with thin-walled leading/trailing ...
Kaiming Zhang, Yixin Liu, Shuang Liu, Xiancheng Zhang, Bo Qian, Chengcheng Zhang, Shantung Tu   +6 more
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Investigations on the nanocrystallization of 40Cr using ultrasonic surface rolling processing

Applied Surface Science, 2008
Abstract Ultrasonic surface rolling processing (USRP) was applied on quenched and tempered 40Cr. Microstructure observations of USRP specimen surface indicate that the processing can both get nano-structured layers, with grain size of 3–7 nm, and reduce the surface roughness to 0.05 μm.
Wang Ting, Wang Dongpo, Liu Gang, Gong Baoming, Song Ningxia   +4 more
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Enhanced surface properties of austenitic stainless steel by electropulsing-assisted ultrasonic surface rolling process

Surface and Coatings Technology, 2015
Abstract The present work reports the experimental observations of surface property enhancement for austenitic stainless steel treated by electropulsing-assisted ultrasonic surface rolling process (EP-USRP). Compared with the original ultrasonic surface rolling process (USRP), the introduction of electropulsing can facilitate the surface cracks ...
Haibo Wang, Guolin Song, Guoyi Tang
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Study on surface characteristics of 7050-T7451 aluminum alloy by ultrasonic surface rolling process

The International Journal of Advanced Manufacturing Technology, 2016
Ultrasonic surface rolling process (USRP) is an effective method to improve material surface quality, such as surface finish, microstructure, and stress state. Previously, USRP is usually used in comparably hard materials (e.g., instance steel and titanium alloys).
L. X. Lu, J. Sun, L. Li, Q. C. Xiong
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Effects of ultrasonic surface rolling processing on the corrosion properties of uranium metal

Journal of Nuclear Materials, 2021
Abstract Ultrasonic rolling processing is adopted to realize severe plastic deformation on uranium metal surfaces, and the microstructure near the surface is reconstructed. The results show that after rolling, the surface roughness of uranium samples can be reduced below Ra0.4, a gradient twin structure can be produced on the surface layer of uranium
Jingyuan Liu, Daoming Chen, Bin Su, Dehua Chen, Zhiyong Ren, Dongli Zou, Kezhao Liu   +6 more
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Microstructure and Mechanical Properties of AZ31B Magnesium Alloy via Ultrasonic Surface Rolling Process

Advanced Engineering Materials, 2021
Ultrasonic surface rolling process (USRP) is a recently developed surface nanocrystallization technology which introduces ultrasonic into surface mechanical rolling technology. By means of USRP, a near‐polished,gradient nanostructured surface and high compressive residual stresses were generated on the AZ31B magnesium alloy.
Jilong Geng, Zhifeng Yan, Hongxia Zhang, Yongquan Liu, Peng Dong, Shuo Yuan, Wenxian Wang   +6 more
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Control of ultrasonic surface rolling process machine tool for aero-engine blades

2018 15th International Conference on Control, Automation, Robotics and Vision (ICARCV), 2018
The surface quality of blades affects the performance and security of aircraft engines. Ultrasonic surface rolling process (USRP) can be used to improve service life of alloys. However, blades with complex design specifications are difficult to processing, especially the thin-walled leading/trailing edge should bear the loads during the process of ...
Kaiming Zhang, Shuang Liu, Shulei Yao, Xiancheng Zhang, Congyang Gong, Chengcheng Zhang   +5 more
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Effect of Ultrasonic Surface Rolling Process Parameters on Surface Properties of S30408 Austenitic Stainless Steel

Solid State Phenomena, 2020
S30408 austenitic stainless steel was treated by using hawking processing which is a type of ultrasonic surface rolling process (USRP). The effects of USRP parameters on surface roughness, surface hardness and corrosion resistance were investigated.
Rong Juan Sui, Zhen Hua Qin, Lei Yu Sun, Cheng Bin Fang, Xiao Mei Chen   +4 more
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Surface nanocrystallization of 17-4 precipitation-hardening stainless steel subjected to ultrasonic surface rolling process

Materials Science and Engineering: A, 2018
Abstract The ultrasonic surface rolling process (USRP) is a new technique employing a high strain rate and severe plastic deformation (SPD), and treated materials show high homogeneity, a large depth of strengthening and excellent surface integrity.
Dan Liu, Daoxin Liu, Xiaohua Zhang, Chengsong Liu, Ni Ao   +4 more
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