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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Advanced Real Time Imaging
Presentation Title 4D Microstructural Evolution of Bismuth (Bi) Phase during Solidification of Sn-58Bi Solder
Author(s) Amey Luktuke, Hamid Torbati-Sarraf, Sridhar Niverty, Alan Kastengren, Viktor Nikitin, Aniket Tekawade, Rajkumar Kettimuthu, Nikhilesh Chawla
On-Site Speaker (Planned) Amey Luktuke
Abstract Scope With increased interest in Heterogeneous Integration Packaging (HIP), Sn-58Bi (MP:139˚C) is being investigated to replace Sn-Pb and SAC solder alloys due to its significantly lower melting point. The Bi phase plays a crucial role in determining the mechanical behavior and reliability of Sn-58Bi solder joints. Our recent work showed the growth of Bi phase in pyramidal morphology during the solidification process. In this study, we investigate the mechanisms governing the evolution of solidification of the Bi phase in Sn-58Bi solder using 4D microtomography and the Energy Dispersive Diffraction (EDD) technique. The microtomography analysis revealed the mechanisms controlling the growth dynamics, while the EDD investigation provided crystallographic insights into the evolution process. The combination of these techniques presented a unique understanding of Bi crystal growth in the solder melt which will be discussed.
Proceedings Inclusion? Planned:
Keywords Characterization, Solidification, Electronic Materials

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

4D Microstructural Evolution of Bismuth (Bi) Phase during Solidification of Sn-58Bi Solder
Behavior of Plastic Ashes in Gasification Environments
Energy Absorption Properties of Open-Cell Rhombic Dodecahedron Cellular Lattice Structures Under Shock Compression
Estimation of Interfacial Strain Response for a Bi-material Strip in Tensile and Shear Loading Using THz-TDS
High-Temperature Wetting of Calcium Alloys and Molten Salts
In-situ Monitoring and Post Operando Analysis of Additively Manufacturing Lunar Regolith Simulants Parts
In-situ TEM Study of Rapidly Solidifed AlCuLi Based Alloys
In-situ Visualization of Retrograde Melting Phenomenon During Solidification of Boron-bearing Steels
L-9: In-situ Magnetic Computed Tomography for Additive Manufacturing
Machine Learning for In-situ Detection of Local Heat Accumulation in Additive Manufacturing
Mapping the Melt Pool Variability in L-PBF Additive Manufacturing by High-Speed Imaging
Microstructure Evolution during Laser-based Powder Bed Fusion Studied by Operando X-ray Radiography
Prediction of Laser Absorptivity from Synchrotron X-ray Images Using Deep Convolutional Neural Networks
Real-time Plasmon-Enhanced Colorimetric Imaging
Real Time Imaging of Laser Melting and Re-Solidification
Recent Advances in Ultrafast Real-time Imaging of Sonoprocessing Advanced Materials
Study of Fracture Behaviors of Epoxy-Alumina Composite Using Mechanical Testing Coupled with Micro-CT
The Influence of Temperature on Strength: Are Concentrated BCC Alloys Different than Elements and Dilute Alloys?
Thermal Stability of fcc-bcc Nanolaminates Containing 3D Interfaces
Three-dimensional Assessment of Strain Localization at the Sub-grain Level of a Ni-based Superalloy at Low and High Temperature Using Laser Scanning Confocal Microscopy
Visualization of Molten Slag Suspension by Electrical Impedance Tomography

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