National Key Fundamental Research and Development Program of China [2005CB623706]
机构署名：
本校为其他机构
院系归属：
材料科学与工程学院
摘要：
The effect of minor scandium addition on the microstructures and mechanical properties of Al-Zn-Mg-Cu-Zr alloys has been studied. Three alloys were produced by casting and then extruded to rods. Tensile properties of these alloys in different condition were tested. The relationship between mechanical properties and microstructures of the alloys was discussed in detial. The results showed that the tensile strength of Al-9.0Zn-2.5Mg-1.2Cu-0.15Zr-0.12Sc and Al-9.0Zn-2.5Mg-1.2Cu- 0.15Zr-0.20Sc in solution and T6 reaches 763.7MPa and 774.6MPa, r...
