|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||Joining of Dissimilar Metals for High-Speed Electric Motor Applications: A Molecular Dynamics Study
||Jiayi Chen, Johannes Nokelainen, Bernardo Barbiellini, Hemantha Kumar Yeddu
|On-Site Speaker (Planned)
The fossil-fuel emissions can be reduced by substituting fossil-fuel based engines with high-speed electrical motors, such as axially laminated anisotropic synchronous reluctance motor (ALASynRM). The rotor of this motor is constructed by joining Inconel and steel by using vacuum brazing with copper (Cu) filler. However, the experiments show poor wettability of Cu on IN718 during vacuum brazing. In this work Molecular Dynamics (MD) simulations are performed to study the nanoscale interfacial phenomena that occur during brazing of steel with IN600 and IN718 using Cu. The results show that IN600 coheres well with liquid Cu, whereas IN718 containing Niobium impedes the atoms diffusing from Inconel into liquid Cu. Additionally, liquid Cu atoms diffuse well into the precipitate (γ'' phase), whereas Cu atoms barely diffuse into the parent γ phase in IN718.
||Planned: Other (describe below)