Hot Deformation Behavior of as-Cast AZ61 Magnesium Alloy

Zhong Xue Feng; Qing Nan Shi; Fu Sheng Pan; Jun Tan; Liang Wei Chen; Xi Liang Chen

doi:10.4028/www.scientific.net/AMR.750-752.574

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Hot Deformation Behavior of as-Cast AZ61 Magnesium...

Hot Deformation Behavior of as-Cast AZ61 Magnesium Alloy

Abstract:

Thermal compression tests of AZ61 magnesium alloy were performed at deformation temperature 25-400°C with strain rates ranged from 0.02 to 20 s-1, and the microstructure was studied. The conventional dynamic recrystallization (DRX) and shear zones were observed on grain boundaries at temperatures above 200°C. The shear zone and the temperature rise are considered to be responsible for the fracture of specimens. For the large internal stress concentration in the shear zones and the deformation incompatibility between matrix and shear zones, the fracture grew along with the shear zones and the failure occurred in the large deformation field of the matrix at the high strain rate 20 s-1 even at 400°C.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

574-578

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.574

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Online since:

August 2013

Authors:

Zhong Xue Feng, Qing Nan Shi, Fu Sheng Pan, Jun Tan, Liang Wei Chen, Xi Liang Chen

Keywords:

AZ61 Magnesium Alloy, Dynamic Recrystallization (DRX), Shear Zone

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