Abstract
The microstructure evolution during the cogging, upsetting and hot die forging in the manufacture of IN718 turbine disc has been predicted through coupling the microstructure evolution prediction system developed with a commercial finite element software. The prediction results were in good agreement with the actual ones. Furthermore, the effects of process parameters on the microstructure development during the hot die forging of IN718 turbine disc have been investigated. To design the hot die forging, a uniform function of microstructure has been proposed as the goal function.
Highlights
Superalloy IN718 is an important material used for aeroengine turbine disks because of its excellent mechanical properties in the temperature range from -253 to 650oC [1, 2]
The microstructure of IN718 is sensitive to the hot deformation parameters
The microstructure development during the cogging, upsetting and hot die forging of the turbine disc have been investigated through coupling the microstructure evolution prediction system developed with a commercial FE Software, MSC.Superform
Summary
Superalloy IN718 is an important material used for aeroengine turbine disks because of its excellent mechanical properties in the temperature range from -253 to 650oC [1, 2]. To ensure the required mechanical properties, it is crucial to obtain a uniform and fine microstructure. The microstructure of IN718 is sensitive to the hot deformation parameters. Though the subsequent forging processes which mainly included upsetting and closed die forging, the turbine disc forging has been obtained. In order to obtain the turbine disc with a uniform and fine structure, the structure in each process should been controlled in the manufacturing. It is important to understand the microstructure evolution in each process. The microstructure development during the cogging, upsetting and hot die forging of the turbine disc have been investigated through coupling the microstructure evolution prediction system developed with a commercial FE Software, MSC.Superform
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
