Short communication: ‘Low activation, refractory, high entropy alloys for nuclear applications’
نویسندگان
چکیده
منابع مشابه
Exploration and Development of High Entropy Alloys for Structural Applications
We develop a strategy to design and evaluate high-entropy alloys (HEAs) for structural use in the transportation and energy industries. We give HEA goal properties for low (≤150 °C), medium (≤450 °C) and high (≥1,100 °C) use temperatures. A systematic design approach uses palettes of elements chosen to meet target properties of each HEA family and gives methods to build HEAs from these palettes...
متن کاملExperiments and Model for Serration Statistics in Low-Entropy, Medium-Entropy, and High-Entropy Alloys
High-entropy alloys (HEAs) are new alloys that contain five or more elements in roughly-equal proportion. We present new experiments and theory on the deformation behavior of HEAs under slow stretching (straining), and observe differences, compared to conventional alloys with fewer elements. For a specific range of temperatures and strain-rates, HEAs deform in a jerky way, with sudden slips tha...
متن کاملThe Microstructure and Mechanical Properties of Refractory High-Entropy Alloys with High Plasticity
Refractory high-entropy alloys (RHEAs) are promising materials used at high temperature, but their low plasticity restricts their application. Based on the valence electron concentration (VEC) principle, four kinds of RHEAs (ZrTiHfV0.5Nb0.5, Zr2.0TiHfVNb2.0, ZrTiHfNb0.5Mo0.5, and ZrTiHfNb0.5Ta0.5) are designed (VEC < 4.5). The experimental results show that the plasticity of these alloys was gr...
متن کاملAtomic and electronic basis for the serrations of refractory high-entropy alloys
Refractory high-entropy alloys present attractive mechanical properties, i.e., high yield strength and fracture toughness, making them potential candidates for structural applications. Understandings of atomic and electronic interactions are important to reveal the origins for the formation of high-entropy alloys and their structure−dominated mechanical properties, thus enabling the development...
متن کاملMulticomponent and High Entropy Alloys
This paper describes some underlying principles of multicomponent and high entropy alloys, and gives some examples of these materials. Different types of multicomponent alloy and different methods of accessing multicomponent phase space are discussed. The alloys were manufactured by conventional and high speed solidification techniques, and their macroscopic, microscopic and nanoscale structure...
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ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 2019
ISSN: 0022-3115
DOI: 10.1016/j.jnucmat.2019.151744