Microstructure Modeling of a Ni-Fe-Based Superalloy During the Rotary Forging Process

Autor: A. Loyda, L. A. Reyes, Patricia del Carmen Zambrano-Robledo, Guadalupe Maribel Hernández-Muñoz
Rok vydání: 2016
Předmět:
Zdroj: Journal of Materials Engineering and Performance. 25:2128-2137
ISSN: 1544-1024
1059-9495
DOI: 10.1007/s11665-016-2104-6
Popis: The microstructure evolution of Ni-Fe superalloys has a great influence on the mechanical behavior during service conditions. The rotary forging process offers an alternative to conventional bulk forming processes where the parts can be rotary forged with a fraction of the force commonly needed by conventional forging techniques. In this investigation, a numerical modeling of microstructure evolution for design and optimization of the hot forging operations has been used to manufacture a heat-resistant nickel-based superalloy. An Avrami model was implemented into finite element commercial platform DEFORM 3D to evaluate the average grain size and recrystallization during the rotary forging process. The simulations were carried out considering three initial temperatures, 980, 1000, and 1050 °C, to obtain the microstructure behavior after rotary forging. The final average grain size of one case was validated by comparing with results of previous experimental work of disk forging operation. This investigation was aimed to explore the influence of the rotary forging process on microstructure evolution in order to obtain a homogenous and refined grain size in the final component.
Databáze: OpenAIRE
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