Testing and Analysis on Static and Dynamic Mechanical Properties of Magnesium Alloy Loading Wheel
The static and dynamic mechanical properties of AZ80 loading wheel(along with the direction of the radial direction of plate into 0°, 45°, and 90°) samples were tested on split Hopkinson pressure bar and Gleeble testing machine. The results show that the stress-strain curves exhibit elasto-plastic characteristics and strain hardening behavior in the experimental range. AZ80 alloy has a positive effect on strain rate. For three directions from 10-3s-1to 3×10-3s-1,the maximum stress increases an average of 51.4% and the maximum strain increases an average of 124.6%. The mechanical behavior has obvious anisotropy at high and low strain rate. The strain rate sensitivity coefficient at 0°, 45° and 90° direction is 0.00669, 0.03189 and 0.03004, respectively.