Effect of Pulling Velocity on the Unidirectional Solidification Phenomenon of DZ417G Superalloy

Xiang Mei Li; Jie Yu Zhang; Chun Tao Liu; Ji Fang Xu; Zhong Ming Ren

doi:10.4028/www.scientific.net/AMR.148-149.539

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149Effect of Pulling Velocity on the Unidirectional...

Effect of Pulling Velocity on the Unidirectional Solidification Phenomenon of DZ417G Superalloy

Abstract:

In this study, the influence of pulling velocity on temperature field, fluid field and grain structure of a unidirectionally solidified superalloy DZ417G cylindrical casting was investigated by using a 3D cellular automaton finite element (CAFE) model within commercial software CALCOSOFT. The predictions show that temperature distribution in the casting is well in accordance with the experiment result. The solidification front and fluid field are sensitive to changes in pulling velocity. And the pulling velocity should be controlled less than 0.5 mm/s in our experiment so as to effectively decrease the grain number and mean grain deviation.

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Periodical:

Advanced Materials Research (Volumes 148-149)

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539-543

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https://doi.org/10.4028/www.scientific.net/AMR.148-149.539

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Online since:

October 2010

Authors:

Xiang Mei Li, Jie Yu Zhang, Chun Tao Liu, Ji Fang Xu, Zhong Ming Ren

Keywords:

Computer Simulation, Fluid Field, Grain Structure, Unidirectional Solidification

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