Research on the thermal simulation experiment of AZ80A magnesium alloy

Author

Yang, Ming ; Yang, Yongshun ; Guo, Junqing

Author_Institution

Sch. of Mater. Sci. & Eng., Henan Univ. of Sci. & Technol., LuoYang, China

fYear

2011

fDate

15-17 July 2011

Firstpage

1581

Lastpage

1584

Abstract

By the compression tests on a Gleeble-1500 thermo-mechanical simulator to study on the mechanics and the DRX behaviours of AZ80A magnesium alloy in the temperature between 593K and 683K and strain rates between 0.01 s^-1 and 10s^-1. The activation energy of AZ80A Magnesium Alloy in the deformation condition is 201.78×103 J/mol, and the relationship can be described by the Zener-Hollomon parameter in the hyperbolic sine type equation. The critical conditions of DRX for AZ80A magnesium alloy are established by the flow stress curves from the isotermal compression tests. By metallographic analysis, it is found that the DRX grain size is dependent on the dimensionless parameter Z/A, and it can be expressed by a power function.

Keywords

compressive testing; grain size; hyperbolic equations; magnesium alloys; metallography; plastic flow; recrystallisation; thermomechanical treatment; AZ80A magnesium alloy; DRX behaviours; DRX grain size; Gleeble-1500 thermomechanical simulator; Zener-Hollomon parameter; activation energy; critical conditions; deformation condition; dimensionless parameter; flow stress curves; hyperbolic sine type equation; isotermal compression tests; metallographic analysis; power function; strain rates; temperature 593 K to 683 K; thermal simulation experiment; Grain size; Magnesium; Microstructure; Strain; Stress; AZ80A magnesium alloy; Dynamic recrystallization; the DRX grain size; the thermal simulation experiment;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987253

Filename

5987253