About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Thermodynamics and Kinetics of Alloys
|
Presentation Title |
Effect of Ti on the Diffusional Growth of A15 Nb3Sn |
Author(s) |
Sang-Ho Oh, Yang-Jin Jeong, Sin-Hye Na, Iksang Shin, Jiman Kim, Byeong-Joo Lee |
On-Site Speaker (Planned) |
Sang-Ho Oh |
Abstract Scope |
A15 Nb3Sn is one of the mostly used materials for superconducting wire applications. Manufacturing technologies of Nb3Sn wire products are based on the diffusion of Sn and the diffusional growth of Nb3Sn compound during a heat treatment. Alloying elements such as Ti are reported to dramatically promote the growth rate of the Nb3Sn layer, but the detailed mechanism of such effect is not fully understood yet. To optimize the alloying strategy for the Nb3Sn products, details of alloying effects should be investigated based on a fundamental understanding of diffusion phenomena. We employed atomistic simulations based on a 2NN MEAM interatomic potential to investigate the detailed diffusion mechanism in the Nb3Sn compound and clarified the major diffusion path in Nb3Sn. Based on this, we investigated the atomic behavior of Ti in Nb3Sn compound and clarified details of alloying effects on the diffusional growth of the Nb3Sn layer. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Phase Transformations, Modeling and Simulation |