Microstructure Engineering

Overview

Microstructural refinement in Al-Si-based alloys is critical for enhancing mechanical properties such as strength, toughness, and elastic modulus. The addition of inoculants plays a pivotal role in modifying the solidification process and refining the microstructure which not only promotes the formation of fine, uniform particles but also enhances the overall elastic modulus. This refinement leads to better control over phase distribution and enhances the alloy’s mechanical properties, including wear and fatigue resistance. The effectiveness of inoculants in controlling particle size and promoting desirable microstructural features underscores their importance in optimizing the performance of Al-Si alloys.

Representative Patent, Publications, and Presentations

1. High-elasticity aluminum alloy casting material. (KOR)
Jung-Moo Lee, Young-Hee Cho, Saif Haider Kayani, Lee Yoon-Ho, Kim Dong-Woo, Lee Sang-ik.
Registered. (2024)

- Microstructural refinement in a high Elastic Modulus Al-18Si-8Ni casting alloy.
Yoon-Ho Lee, Saif Haider Kayani, Jung-Moo Lee, Sang-Ik Lee, Se-Jong Kim, Jae-Il Jang, Young-Hee Cho
Journal of Alloys and Compounds 1008 (2024) 176580.
DOI

- Role of Ni in High elastic modulus Al-Si-Ni alloys: Solidification and Microstructure evolution.
Yoon-Ho Lee, Saif Haider Kayani, Jung-Moo Lee, Sang-Ik Lee, Young-Hee Cho
Materials Characterization 115768.
DOI

- Solidification behavior and mechanical properties of a quaternary eutectic Al-Cu-Si-Mg alloy.
Byung-Joo Kim, Saif Haider Kayani, Zhirou Zhang, Young-Hee Cho, Su-Hyeon Kim
Journal of Alloys and Compounds 1007 (2024) 176351.
DOI