Results 81 to 90 of about 15,132,305 (299)

An Overview on Fatigue of High-Entropy Alloys

Materials, 2023
Due to their distinct physical, chemical, and mechanical features, high-entropy alloys have significantly broadened the possibilities of designing metal materials, and are anticipated to hold a crucial position in key engineering domains such as aviation and aerospace.
Hu, Junchao, Li, Xue, Zhao, Qiuchen, Chen, Yangrui, Yang, Kun, Wang, Qingyuan   +5 more
openaire   +2 more sources

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Microstructure and Wear Properties of AlCoCrFeNiSi High-Entropy Alloy Coatings Prepared by Laser Cladding [PDF]

Cailiao Baohu
Wear is one of the main causes of functional failure in mechanical components，and improving the wear resistance of materials can effectively extend their service life.
WU Meijie, DUAN Tianying, ZHOU Yongkuan, KANG Jiajie, MA Guozheng
doaj   +1 more source

Nanoporous High-Entropy Alloy by Liquid Metal Dealloying [PDF]

, 2020
High-entropy nanomaterials possessing high accessible surface areas have demonstrated outstanding catalytic performance, beating that found for noble metals.
Ilya Vladimirovich Okulov, Okulov, Ilya Vladimirovich, Okulov, A. V., Soo-Hyun Joo, Artem Vladimirovich Okulov, Okulov, I. V., Hidemi Kato, KIM, HYOUNG SEOP, Okulov, Artem Vladimirovich, Kato, Hidemi, Hyoung Seop Kim, Joo, S. -H., Joo, Soo-Hyun, Kato, H., Kim, H. S.   +14 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Phonon broadening in high entropy alloys [PDF]

npj Computational Materials, 2017
AbstractRefractory high entropy alloys feature outstanding properties making them a promising materials class for next-generation high-temperature applications. At high temperatures, materials properties are strongly affected by lattice vibrations (phonons).
Fritz Körmann, Yuji Ikeda, Blazej Grabowski, Marcel H. F. Sluiter   +3 more
openaire   +4 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Research progress in additive manufacturing of AlCoCrFeNi2.1 eutectic high-entropy alloys

Cailiao gongcheng
AlCoCrFeNi2.1 eutectic high-entropy alloy is characterized by a fine, homogeneous, and regular lamellar structure, as well as good organizational structure and mechanical properties with both strength and plasticity over a wide range of temperature (70 ...
QIU Hefang, YUAN Xiaojing, LUO Weipeng, ZHANG Ze, CHENG Chen, CUI Fanfan   +5 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source