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Registration Number

0119U101819, ( 0219U102094  ) R & D request

Title

Physical mechanisms of plastic deformation of nanostructured high entropy alloys FeCrCoNi and FeCrCoNiС with improved ratio “strength – plasticity” in temperature range 300–0.5 K

Head

Semerenko Yuri O., Кандидат фізико-математичних наук

Registration Date

21-05-2019

Organization

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

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The aim of the project is, firstly, the creation of nanostructured high-entropy alloys (HEAs) FeCrCoNi and FeCrCoNiC with an improved strength-plasticity ratio due to carbon-doping and the effect on the plasticity of the induced twinning processes (TWIP – "Twinning Induced Plasticity") and phase transformation (TRIP – “Transformation Induced Plasticity"). The second aim is to investigate the influence of these factors on low-temperature mechanical and acoustic properties and on physical mechanisms of plastic deformation. The research will allow for systematical design of new high-strength states of nanostructured HEAs with good perspectives of commercial applications as coarse grained HEAs already have outstanding properties, such as high strength, high wear resistance, high toughness (including the cryogenic region). These characteristics are enhanced due to carbon-doping and the TWIP and TRIP effects. Therefore, it is expected that in the nanostructured state, the outstanding properties of HEAs will be even more impressive.

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2024-12-10