At room temperature and high temperature the tensile strength of the forging decreases firstly and then increases while the ductility changes on the contrary.
室温和高温拉伸强度随锻造火次的增加呈现先减少后增加的趋势，塑性则先增加后减小。
Tensile tests at room temperature show that the strength of hot-extruded AZ61-RE is higher than that of AZ61 alloy, whilst ductility of hot-extruded AZ61-RE is a little lower.
室温拉伸实验表明：热挤压AZ61-RE合金的强度高于AZ61合金的相应强度，而其延展性却稍低于AZ61合金。
The results show that the hot-rolled and directionally solidified processes improve the mechanical properties of the alloy and particularly its tensile ductility at room temperature.
结果表明，热轧和定向凝固结晶工艺明显改善了合金性能，特别是提高了合金室温塑性。
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