Strain Field Quantitative Measurement around GP Zones Formed by an Al-Zn-Mg-Cu Alloy Spray Deposition
喷射沉积Al-Zn-Mg-Cu合金GP区应变场的定量测试

In order to quantitatively measure the lattice strain distribution around GP zone,an Al12Zn2.4Mg1.1Cu alloy was prepared by spray deposition.Alloy samples were subsequently processed by hot extrusion,solid solution treatment at 758K for 2 hours and aging at 393K for 20 hours.The structure and strain field of GP zones in the alloy was experimentally investigated based on High Resolution Transmission Electon Microscopy(HRTEM) and geometric phase analysis(GPA).Experimental results show that obvious strain diff...