Registration Number
0221U106949,
0121U110834
, R & D reports
Title
New heat-resistant and wear-resistant high-entropy cast irons and steels for extreme operating conditions
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Head
Shcheretskyi Oleksandr A., Доктор технічних наук
Registration Date
23-12-2021
Organization
Physico-technological institute of metals and alloys National academy of Sciences of Ukraine
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The literature is reviewed and the conditions for the formation of disordered solid solutions and eutectics in high-entropy alloys (HEAs) are determined. The following parameters are responsible for the formation of a solid solution: the mixing entropy, the mixing enthalpy ofbinary alloys, theatomic size difference, the electronegativity differenceof elements, the valenceelectron concentration.Based on the literary review, main and additional alloying elements were selected for the synthesis of heat-resistant and wear-resistant high-entropy cast irons and steels.The design of a special vacuum induction furnace for smelting high-entropy alloys has been developed.Experimental procedure for studying of the heat resistance, oxidation kinetics and the effect of heat treatment on the elastic properties of the HEAs by the DMA method has been developed. It was found that the high-entropy system CrMnFeCoNiAlx has the best resistance to oxidation.
Product Description
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Verhovluk Anatolii Mykhailovych
Sergiienko Ruslan Arseniiovych
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2021-12-23
