Results 121 to 130 of about 47,462 (292)

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Evaluation of residual stress and its influence on fracture performance of Q690 thick plate butt welded joint

Zhongguo Jianchuan Yanjiu
ObjectiveThis study aims to investigate the complex welding residual stress of high-strength steel thick plate with multi-pass welding, and examines the influence of such stress on the fracture behavior of welded joints.
Jiangchao WANG, Shizhong DU, Yexing NIU, Qingya ZHANG, Hongquan ZHAO, Lei WU, Zhen CHEN   +6 more
doaj   +1 more source

Additive Manufacturing of Ni‐Based Thermoelectric Materials for Waste Heat Recovery

Advanced Materials Technologies, EarlyView.
Thermoelectric generators convert waste heat into electricity but are constrained by conventional fabrication. Here, laser powder bed fusion enables direct printing of customised n‐type Cu60Ni40 and p‐type Ni90Cr10 legs. The assembled module achieves 0.8% efficiency at ΔT = 419 K, demonstrating scalable additive manufacturing of eco‐friendly, design ...
Karolin Amstein, Aayush Dobhal, Heiko Reith, Ran He, Julia Kristin Hufenbach, Kornelius Nielsch, Pingjun Ying   +6 more
wiley   +1 more source

EFFECT OF WELDING RESIDUAL STRESS ON CRACK PROPAGATION AND FATIGUE PERFORMANCE OF HIGH STRENGTH STEEL SPOT WELDING JOINT

Jixie qiangdu
Due to the high stress concentration of spot welding joints, it is very easy to initiate fatigue cracks at the edge of the nugget, and the residual stress produced by spot welding will affect its propagation.
LUO JiaYuan, LI Xin, TAN Chao
doaj  

Enhancement of glass welding strength by regulating the spatial distribution of residual stress

Journal of Materials Research and Technology
The welding performance of ultrafast laser glass welding is significantly influenced by welding strategies. Unlike continuous scanning welding strategy, discrete scanning welding strategy (DSW) can offer greater flexibility in modulating molten zones ...
Xiaohui Su, Si Wu, Xinke Xu, Zijing Yang, Yaqing Qiao, Qinghua Yuan, Zexu Zhang, Wei Xiong, Qiaodan Chen, Leimin Deng   +9 more
doaj   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Development of a gas pressure bonded four-pole alternator rotor [PDF]

Methods were developed for fabrication of a solid four pole alternator rotor by hot isostatic pressure welding. The rotor blanks welded in this program had complex geometrical mating interfaces and were of considerable bulk, being approximately 3-1/2 ...
Bryant, W. A., Lessmann, G. G.
core   +1 more source

Atomic‐Scale Insights into Yttrium‐Induced Grain Boundary Structure Modification in Al2O3

Advanced Science, EarlyView.
Using advanced STEM characterization combined with NNP‐based MCMD calculations, it is revealed that Y segregation at ∑13 Al2O3 GB involves not only simple substitution of Y for Al atoms but also structural adaptation with a change in GB atomic density, leading to minimized excess volume and lowest GB energy.
Jingyuan Yan, Tatsuya Yokoi, Yuuki Nakano, Shun Kondo, Bin Feng, Naoya Shibata, Katsuyuki Matsunaga, Yuichi Ikuhara   +7 more
wiley   +1 more source

Experimental and Numerical Simulation to Study the Reduction of Welding Residual Stress by Ultrasonic Impact Treatment. [PDF]

Materials (Basel), 2020
Chen J, Chu J, Jiang W, Yao B, Zhou F, Wang Z, Zhao P.   +6 more
europepmc   +1 more source

Characterization of Residual Stress Effects on Fatigue Crack Growth of a Friction Stir Welded Aluminum Alloy [PDF]

An on-line compliance-based method to account for residual stress effects in stress-intensity factor and fatigue crack growth property determinations has been evaluated.
Blair, Amy, Brazill, Richard L., Donald, J. Keith, James, Mark A., Newman, John A., Schultz, Robert W., Seshadri, Banavara R., Smith, Stephen W.   +7 more
core   +1 more source