Abstract
A theoretical study of the deformation and fracture behavior of Ni3Al alloy under shock loading has been carried out. The finite element method simulation was used within the approach that combined modeling in terms of the dislocation kinetics of alloys with the L12 superstructure and the mechanics of a deformable solid. The dislocation kinetic model of the alloys with the Ll2 superstructure defined the hardening of Ni3Al punch and plate materials, while the model of the mechanics of a deformable solid described deformation of the macrovolume.
Highlights
Ni3Al intermetallide is related to the alloys possessing the L12 superstructure
Despite the fact that these alloys demonstrate excellent performance in the hightemperature range, under uniaxial compression at the temperature T>0.6Tmp (Tmp – melting point), a plastic strain superlocalization phenomenon [1, 2] was observed in single crystals of Ni3Al alloy as well as in Ni3Ge alloy that is isostructural to Ni3Al
The calculation of the shock interaction plate and punch were carried out using the approach that combines modeling in terms of continuum mechanics and dislocation kinetics of alloys with the L12 superstructure
Summary
Ni3Al intermetallide is related to the alloys possessing the L12 superstructure. Single crystals of these alloys are characterized by a temperature anomaly of mechanical properties. When heated, these materials become harder, and the yield stress increases. These materials become harder, and the yield stress increases These alloys are widely used in high-temperature operation modes, including aviation and rocket technology. The bands of superlocalization of plastic deformation as well as the adiabatic shear bands are formed upon significant heating of the material and are the result of phase transitions. The formation of the superlocalization bands in a single-crystal sample is accompanied by the formation of a polycrystalline structure in the band
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
