Results 41 to 50 of about 991 (250)

Atomic and electronic basis for the serrations of refractory high-entropy alloys

npj Computational Materials, 2017
High-entropy alloys: cluster-and-glue atoms behind exceptional properties A cluster-and-glue model of atomic arrangements explains the yield strength and mechanical response of high entropy alloys.
William Yi Wang, Shun Li Shang, Yi Wang, Fengbo Han, Kristopher A. Darling, Yidong Wu, Xie Xie, Oleg N. Senkov, Jinshan Li, Xi Dong Hui, Karin A. Dahmen, Peter K. Liaw, Laszlo J. Kecskes, Zi-Kui Liu   +13 more
doaj   +1 more source

High-Temperature Nano-Indentation Creep of Reduced Activity High Entropy Alloys Based on 4-5-6 Elemental Palette

Entropy, 2020
There is a strong demand for materials with inherently high creep resistance in the harsh environment of next-generation nuclear reactors. High entropy alloys have drawn intense attention in this regard due to their excellent elevated temperature ...
Maryam Sadeghilaridjani, Saideep Muskeri, Mayur Pole, Sundeep Mukherjee   +3 more
doaj   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Formability of NbMoTaNiCr refractory high entropy alloys by wire arc additive manufacturing

Fenmo yejin jishu
Based on the previous preparation of the refractory high-entropy alloy cable-type wire materials, the NbMoTaNiCr refractory high-entropy alloy cable-type welding wires were designed and developed. The NbMoTaNiCr refractory high-entropy alloys were formed
HUANG Shaofu, CHENG Lei, LIU Jian, ZENG Xiangling, ZHENG Yang, DU Xian   +5 more
doaj   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Research progress in high-temperature high-entropy alloys

Journal of Aeronautical Materials
High-temperature high-entropy alloys（HEAs）show potential to surpass traditional Ni-based alloys through multi-principal element synergy and microstructural regulation.
LI Haiyang, MA Zhaolong, CHENG Xingwang
doaj   +1 more source

Microstructure and Mechanical Properties of Nb–Ti–V–Zr Refractory Medium-Entropy Alloys

Frontiers in Materials, 2020
Low-density refractory medium entropy alloys (NbTiVZr, Nb0.5TiVZr, and NbTiV) were produced by vacuum arc melting, then heat-treated at 1,200°C for 1 h, water quenched, and finally annealed at 500°C for 0.5 h.
Yuefei Jia, Liangbo Zhang, Peiyou Li, Xindi Ma, Long Xu, Shiwei Wu, Yandong Jia, Gang Wang   +7 more
doaj   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Alloying effect on the oxidation behavior of a ductile Al0.5Cr0.25Nb0.5Ta0.5Ti1.5 refractory high-entropy alloy

Materials Today Advances, 2020
Refractory high-entropy alloys (RHEAs) are widely studied because of their promising potential for ultrahigh-temperature applications. One key challenge towards the development of RHEAs as high-temperature structural materials is to concurrently achieve ...
S. Sheikh, L. Gan, A. Ikeda, H. Murakami, S. Guo   +4 more
doaj   +1 more source