Mg-3Al-2Zn-2Y合金不同应变率压缩性能研究

Properties of Mg-3Al-2Zn-2Y Alloy Compressed at Different Strain Rates

摘要:

在0.001～4800 s-1应变率范围，研究了Mg-3Al-2Zn-2Y合金的室温压缩性能。结果表明：合金经1300 s-1压缩后，基面与非基面的位错滑移形成平行、弯曲与缠结的混合位错组态；经1800与4800 s-1压缩后出现孪生；上述微细观变化导致合金流变应力与极限强度在0.001~1800 s-1范围具有

Abstract:

The compressive properties of Mg-3Al-2Zn-2Y alloy at the strain rates from 0.001 to 4800 s-1 at room temperature were studied. Results show that for the alloy compressed at 1300 s-1, the dislocation slip between its basal and the non-basal produces the mi