Title :
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
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5987253
