Mansfield, CT, United States of America

Emanuel Collins Hirakis


Average Co-Inventor Count = 1.6

ph-index = 2

Forward Citations = 32(Granted Patents)


Company Filing History:


Years Active: 1978-1979

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2 patents (USPTO):Explore Patents

Title: Emanuel Collins Hirakis: Innovator in Cobalt Alloy Technologies

Introduction

Emanuel Collins Hirakis is a notable inventor based in Mansfield, CT (US), recognized for his contributions to the field of cobalt alloy technologies. With a total of two patents to his name, Hirakis has made significant advancements that enhance the performance and durability of materials used in high-temperature applications.

Latest Patents

Hirakis' latest patents include a stabilization heat treatment for a class of wrought cobalt alloys. This innovative heat treatment produces a useful combination of initial ductility, allowing for the fabrication of intricate parts, and adequate ductility even after long-term exposure to elevated temperatures, such as those encountered in gas turbine service. The process involves a solution treatment at elevated temperatures followed by two aging steps at lower temperatures. The nominal alloy composition includes 22.5% chromium, 4.25% aluminum, 15% (nickel+iron), 3% (tantalum+columbium), 10% (tungsten+molybdenum), 1.25% hafnium, 0.05% yttrium, 0.35% carbon, with the balance being essentially cobalt.

Another significant patent by Hirakis is for oxidation-resistant cobalt base alloys designed for use at elevated temperatures. These alloys exhibit excellent resistance to oxidation and corrosion while maintaining mechanical properties that surpass those of similar alloys currently in use. The protective alumina layer is formed through a specific combination of aluminum and chromium, while hafnium and yttrium promote adherence of the alumina. Refractory metal additions are utilized to enhance mechanical properties, making these alloys suitable for gas turbine engines and industrial applications such as furnaces and chemical process apparatus.

Career Highlights

Hirakis is currently employed at United Technologies Corporation, where he continues to innovate and develop advanced materials for various applications. His work has significantly impacted the aerospace and industrial sectors, particularly in enhancing the performance of components subjected to extreme conditions.

Collaborations

Throughout his career, Hirakis has collaborated with esteemed colleagues, including Stephen Thomas Magyar and Maurice L Gell. These collaborations have fostered a productive environment for innovation and have contributed to the successful development of new technologies.

Conclusion

Emanuel Collins Hirakis stands out as a prominent inventor in the field of cobalt alloy technologies. His patents reflect a commitment to advancing material science

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