College - Author 1
College of Engineering
Department - Author 1
Materials Engineering Department
Degree Name - Author 1
BS in Materials Engineering
College - Author 2
College of Engineering
Department - Author 2
Materials Engineering Department
Degree - Author 2
BS in Materials Engineering
Date
6-2024
Primary Advisor
Jean Lee, College of Engineering, Materials Engineering Department
Abstract/Summary
Carlton Forge Works (CFW) is evaluating the retirement of its hammer units in favor of hydraulic presses to address safety concerns in forging aerospace components. This paper investigates the metallurgical implications of this transition, emphasizing the importance of superior microstructures and meeting industry standards and customer requirements. The alloys in question are Titanium-6Al-4V (Ti64) and Inconel 718 (INCO 718), which comprise a majority of CFW’s production. Ti64's high specific strength and thermal stability make it ideal for aerospace applications, while INCO 718 is recognized for superior high-temperature creep performance. Defects like freckles and white spots in INCO 718 are analyzed for their impact on mechanical properties. The influence of forging techniques on alloy microstructures is examined, particularly in Ti64's dynamic globularization and flow instabilities and INCO 718's grain size variations. The findings contribute valuable insights to aid CFW in the decision-making process, ensuring safety, efficiency, and quality in their forging processes.
URL: https://digitalcommons.calpoly.edu/matesp/277