Company Filing History:
Years Active: 1997
Title: Innovations of David S Lee in Titanium Aluminide Alloys
Introduction
David S Lee is an accomplished inventor based in Chesterfield, MO (US). He has made significant contributions to the field of materials science, particularly in the heat treatment of titanium aluminide alloys. His innovative methods have the potential to enhance the performance and durability of various aerospace components.
Latest Patents
David S Lee holds a patent for a "Method for heat treating titanium aluminide alloys." This patent describes a heat treatment method aimed at producing moderate alpha grain size (50-250 µm) fully lamellar microstructures in thin cross-section near-gamma titanium aluminide alloy products. The process involves heating a wrought, fine y grain starting microstructure at a temperature high in the two-phase alpha + gamma phase field and 30-60°C below the alpha transus temperature. This results in a structure of small equiaxed alpha grains (approximately 25 µm in diameter) and fine gamma phase grains. The material is then briefly heated to a temperature in the single-phase alpha field to complete the dissolution of remnant gamma grains and minimize the growth of alpha grains. Finally, the material is cooled to transform the microstructure to fully lamellar α2 + γ.
Career Highlights
David S Lee is associated with the United States of America as represented by the Secretary of the Air Force. His work focuses on advancing the understanding and application of titanium aluminide alloys, which are critical in aerospace and defense industries. His innovative approaches have garnered attention for their potential to improve material properties.
Collaborations
David has collaborated with notable colleagues in his field, including Sheldon L Semiatin and Dennis M Dimiduk. These collaborations have contributed to the advancement of research and development in materials science.
Conclusion
David S Lee's contributions to the field of titanium aluminide alloys through his innovative heat treatment methods highlight his role as a significant inventor. His work not only enhances material performance but also supports advancements in aerospace technology.