Results 61 to 70 of about 5,544 (292)

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

Rock Crushing Analysis of TBM Disc Cutter Assisted by Ultra-High-Frequency Loading

Shock and Vibration, 2022
In the construction of mountain tunnels, the increasing proportion of hard rock stratum enhances the difficulty of rock breaking by tunnel boring machine (TBM). As a type of cyclic load with ultrahigh frequency, ultrasonic vibration has the advantages of
Dajun Zhao, Junpeng Han, Yu Zhou, Xiaoshu Lv, Shulei Zhang, Ke Gao, Yan Zhao   +6 more
doaj   +1 more source

Investigation of stress-state in rolled sheets by ultrasonic techniques [PDF]

Ultrasound, 2011
The present paper concerns investigation of the stress-state in materials by ultrasonic technique. The velocities of ultrasonic surface waves are measured in different directions on the surface of rolled steel sheets. The signal processing and cross spectra methods are used to study the stress in a steel sample.
Y. Ivanova, T. Partalin
openaire   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

Advanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera, Chiranjeevi Kanike, Appurva Tiwari, Hongyan Wu, Larry D. Unsworth, Ben Bin Xu, Xuehua Zhang   +6 more
wiley   +1 more source

STUDY ON PREDICTION MODEL OF SURFACE HARDNESS IN ULTRASOUND ROLLING EXTRUSION

Jixie qiangdu, 2020
Surface hardness is an important index for evaluating the quality of surface processing. Ultrasonic rolling and extrusion technology plays a very significant role in surface strengthening. Taking 42 CrMo bearing steel as the object,the range analysis was
WANG XiaoQiang, RUAN XiaoLin, CUI FengKui, LIU Fei   +3 more
doaj  

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

Submicron Metasurface Reconfigured Multiband Smart Windows

Advanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang, Shancheng Wang, Bin Li, Xinyi Tian, Rong Liu, Jian Chen, Zhendong Dai, Shouqin Tian, Yi Long   +8 more
wiley   +1 more source

The detection of hydrogen induced cracking in welded and seamless steel pipes using acoustic emission and ultrasonic techniques [PDF]

, 1986
The detection and location of hydrogen induced cracks In steel pipes is unreliable and time consuming because of the unpredictable nature of the defect and the lack of sensitivity of conventional non destructive testing techniques.
Raine, C.A.
core  

Comprehensive Estimation of Changes in the Microgeometry of Steel 45 by Ultrasonic Plastic Deformation with a Free Deforming Element

Metals, 2023
A method of ultrasonic surface plastic deformation is widely used to change the properties of the surface layers of metal products. Under the influence of this type of treatment, the structure of the material changes, microhardness increases, roughness ...
Dmitriy S. Fatyukhin, Ravil I. Nigmetzyanov, Vyacheslav M. Prikhodko, Aleksandr V. Sukhov, Sergey K. Sundukov   +4 more
doaj   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source