A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic recrystallization behavior of a typical nickel-based superalloy during hot deformation
Highlights The dynamic recrystallization behavior of a typical nickel-based superalloy is investigated. The segmented models are proposed to describe the kinetics of DRX for the studied superalloy. The dynamically recrystallized grain size can be well characterized by a function of Z parameter.
Abstract The dynamic recrystallization (DRX) behavior of a typical nickel-based superalloy is investigated by the hot compression tests. Based on the conventional DRX kinetics model, the volume fractions of DRX are firstly estimated. Results show that there is an obvious deviation between the experimental and predicted volume fractions of DRX when the forming temperature is below 980°C, which is induced by the slow dynamic recrystallization rate under low forming temperatures. Therefore, the segmented models are proposed to describe the kinetics of DRX for the studied superalloy. Comparisons between the experimental and predicted results indicate that the proposed segmented models can give an accurate and precise estimation of the volume fractions of DRX for the studied superalloy. In addition, the optical observation of the deformed microstructure confirms that the dynamically recrystallized grain size can be well characterized by a power function of Zener–Hollumon parameter.
Dynamic recrystallization behavior of a typical nickel-based superalloy during hot deformation
Highlights The dynamic recrystallization behavior of a typical nickel-based superalloy is investigated. The segmented models are proposed to describe the kinetics of DRX for the studied superalloy. The dynamically recrystallized grain size can be well characterized by a function of Z parameter.
Abstract The dynamic recrystallization (DRX) behavior of a typical nickel-based superalloy is investigated by the hot compression tests. Based on the conventional DRX kinetics model, the volume fractions of DRX are firstly estimated. Results show that there is an obvious deviation between the experimental and predicted volume fractions of DRX when the forming temperature is below 980°C, which is induced by the slow dynamic recrystallization rate under low forming temperatures. Therefore, the segmented models are proposed to describe the kinetics of DRX for the studied superalloy. Comparisons between the experimental and predicted results indicate that the proposed segmented models can give an accurate and precise estimation of the volume fractions of DRX for the studied superalloy. In addition, the optical observation of the deformed microstructure confirms that the dynamically recrystallized grain size can be well characterized by a power function of Zener–Hollumon parameter.
Dynamic recrystallization behavior of a typical nickel-based superalloy during hot deformation
Chen, Xiao-Min (author) / Lin, Y.C. (author) / Wen, Dong-Xu (author) / Zhang, Jin-Long (author) / He, Min (author)
2013-12-28
10 pages
Article (Journal)
Electronic Resource
English
Dynamic recrystallization behavior of a typical nickel-based superalloy during hot deformation
| British Library Online Contents | 2014
Dynamic Recrystallization Modeling during Hot Forging of a Nickel Based Superalloy
| British Library Online Contents | 2010
Dynamic Recrystallization Behavior of GH4586 Superalloy during Hot Compression
| British Library Online Contents | 2010
Recrystallization Behavior of the Nickel-Based ODS Superalloy PM 1000
| British Library Online Contents | 2007
| British Library Online Contents | 2007