Study on Creep Deformation of Reactor Coolant Pump Rotor-Can during Vacuum Hot Bulge Forming Process

Zhi Zhu; Li Wen Zhang; Guan Yu Song; Dong Jiang Wu

doi:10.4028/www.scientific.net/AMR.189-193.2415

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Study on Creep Deformation of Reactor Coolant Pump...

Study on Creep Deformation of Reactor Coolant Pump Rotor-Can during Vacuum Hot Bulge Forming Process

Abstract:

In this paper, a two-dimensional nonlinear thermo-mechanical coupled finite element model was developed to simulate the vacuum hot bulge forming process of rotor-can with the aid of finite element software msc.marc. A set of stress relaxation experiments were conducted to test the high temperature creep properties of hastelloy c-276 and the creep law of material was defined. Then, the finite element model was used to study creep deformation of rotor-can during vacuum hot bulge forming process. As a result, the temperature field and the stress-strain field are calculated and analyzed. Furthermore, the effects of holding temperature and holding time on creep deformation are also investigated. The optimal holding time range for the vacuum hot bulge forming process of rotor-can is from 2h to 3h.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

2415-2420

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.2415

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Online since:

February 2011

Authors:

Zhi Zhu, Li Wen Zhang, Guan Yu Song, Dong Jiang Wu

Keywords:

Creep Deformation, Reactor Coolant Pump, Rotor-Can, Vacuum Hot Bulge Forming

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