Hot Compressive Deformation of Rheocast AZ31 Magnesium Alloy

Bi Cheng Yang; Shao Ming Zhang; Jun Xu; Li Kai Shi; Z. Fan

doi:10.4028/www.scientific.net/SSP.116-117.742

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HomeSolid State PhenomenaSolid State Phenomena Vols. 116-117Hot Compressive Deformation of Rheocast AZ31...

Hot Compressive Deformation of Rheocast AZ31 Magnesium Alloy

Abstract:

The billet of magnesium AZ31B was made by twin-screw rheo-cast, and the specimen cut from the rheo-cast billet and normal cast billet were compressed in Gleeble-3000 hot simulator. The deformation temperature was 300, 350, and the strain rates were 0.001~1s-1. The relationship among flow stress, deformation temperature and strain rates were analyzed. The variation of the microstructure was observed and compared after the specimen was hot compressed. The results show that the surface of the rheo-cast specimen is much more smooth than the normal cast specimen after the compression. The dynamic recrystallization had taken place during the compression and the recrystallized grain of rheo-cast sample is more tiny than normal cast specimen.

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Periodical:

Solid State Phenomena (Volumes 116-117)

Pages:

742-745

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.116-117.742

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Cite this paper

Online since:

October 2006

Authors:

Bi Cheng Yang, Shao Ming Zhang, Jun Xu, Li Kai Shi, Z. Fan

Keywords:

Hot Simulation, Magnesium Alloy, Rheocast

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