Results 81 to 90 of about 32,478 (295)

Mechanical Mechanism of Surrounding Rock Failure and Stability Control for Gob‐Side Entry Driving Near an Advancing Working Face

Energy Science &Engineering, EarlyView.
Taking the 5104 return airway of Checun Coal Mine as an example, this study visually summarises the main findings and methodologies of the research on surrounding rock control in gob‐side entry driving near an advancing working face. By establishing theoretical and numerical simulation analysis models, the stress distribution and plastic zone evolution
Delong Cui, Yujiang Zhang, Shuai Zhang, Xiangye Wu, Qian Wang, Bingyuan Cui, Defu Zhu   +6 more
wiley   +1 more source

Effect of energy parameters on droplet transfer behavior and weld formation in laser-arc hybrid welding with cable-type welding wire

Journal of Materials Research and Technology, 2023
This paper describes the droplet transfer behavior and weld formation of laser-arc hybrid welding with cable-type welding wire (CWW). The droplet transfer behavior was photographed in real time by using a high-speed camera.
Yuntao Chen, Zhidong Yang, Kai Xu, Peng He, Mingxiao Shi, Shujin Chen, Chenfu Fang   +6 more
doaj  

Metallic nanoparticle inks for flexible printed electronics

FlexMat, EarlyView.
Abstract Flexible printed electronics represent a cutting‐edge technology leveraging functional inks to fabricate electronic circuits and components on diverse flexible substrates. Various advanced printing processes enable the production of computer‐controlled patterns with superior resolution and flexibility.
Ruimin Cai, Cunman Liang, Yongqing Duan, Zhijun Zhao, Xi Zhang, Pei He, JunLiang Yang, Wen‐Yong Lai, Jun Wei, Liang Tian   +9 more
wiley   +1 more source

Effect of Arc Welding and Friction Stir Welding Processes on Sidewall Welding Deformation of Aluminum Alloy Carbody in High-speed Railway EMU

Chengshi guidao jiaotong yanjiu
［Objective］ Due to the influence of thermal conductivity and linear expansion characteristics of aluminum alloy materials, welding deformation is prone to occur during the welding process of aluminum alloy carbodies in high-speed railway EMU (electric ...
LIU Song, WANG Ya’nan, GENG Ming, ZHANG Xinmeng, GUO Chuncheng, YAN Gege   +5 more
doaj   +1 more source

Microbiologically influenced corrosion in aluminium alloys and premier techniques for comprehensive identification and characterization across diverse metal types

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Microbiologically influenced corrosion (MIC) is acknowledged as a significant type of corrosion due to its extensive impact on metal/alloy surfaces. As MIC accounts for 20% of all corrosion instances, it is a critical factor causing service failure of engineering materials such as steel and aluminium alloy.
Brinda, M S Divyashree, Suma A Rao, Padmalatha Rao, Lavanya Mulky   +4 more
wiley   +1 more source

Development of Environment‐Time‐Dependent Material Selection Maps for Alloy 718 Under Crevice Conditions in Aerated Seawater

Materials and Corrosion, EarlyView.
This study introduces material selection maps—that is, charts indicating crevice corrosion resistance as a function of temperature and electrochemical potential—illustrating their applicability using nickel‐based alloy 718 as a case study. Crevice corrosion susceptibility maps developed in this study are a new approach that shows how environmental ...
Ahmed Reyad, Thaneshan Sapanathan, Edgar Hornus, Mariano Ianuzzi   +3 more
wiley   +1 more source

High‐throughput assessment of Nb, Co, Ti, and Al effects on microstructure and mechanical properties in wrought nickel‐based superalloys

Materials Genome Engineering Advances, EarlyView.
The diffusion multiple technique enables the simultaneous diffusion of various elements within a single sample preparation, and the characterization of the microstructural morphology and mechanical properties in the diffusion region can facilitate the rapid screening of alloy compositions.
Haoyan Meng, Jin Huang, Tianhao Zhao, Xiaoyu Zhang, Yang Tong, Jinglong Qu, Weidong Li, Liang Jiang, Fanchao Meng, Shuying Chen   +9 more
wiley   +1 more source

Use of audible sound for on-line monitoring of gas metal arc welding process [PDF]

Metalurgija, 2008
In this paper sound generated during the gas-metal arc welding process was studded. Experimental analyses of the acoustic signals have shown that there are two main noise-generating mechanisms, first having impulse form is arc extinction and arc ignition;
Prezelj, J., Čudina, M., Polajnar, I.
doaj  

Mechanical and Microstructural Evaluation of DMAG Welding of Structural Steel

Advances in Mechanical Engineering, 2015
Double channel torch, which allows concentric flow of two different shielding gases, was designed and manufactured in order to pursue double channel torch gas metal arc welding of unalloyed structural steel S235JR (EN 10025-2) with fourteen passes ...
Tolga Mert, Nurullah Gultekin, Ahmet Karaaslan   +2 more
doaj   +1 more source

The SG‐Climbot: An Adaptable, Efficient, Inspection and Repair Robot for Steam Generator Heat Transfer Tube Sheet

Journal of Field Robotics, EarlyView.
ABSTRACT The steam generator plays a crucial role as a safety component and protective barrier in nuclear power plants. Regular inspection and repair of heat transfer tubes, which operate in high‐temperature, high‐pressure, corrosive, and abrasive environments for extended periods, are essential.
Zhaojin Liu, Jiawei Li, Jian Chen, Sicen Li, Xin Gu, Jikai Jiang, Yuxiao Li, Shaoming Yao, Gang Wang   +8 more
wiley   +1 more source