Also known as work hardening process to strengthen that metallic material below the recrystallization temperature of cold deformation processing, such as forging, rolling, drawing, stretching, cold deformation, the metal inside the dislocation density increases, and the entanglement and the formation of cellular structure, impede dislocation motion. The greater the degree of deformation is more serious dislocation tangles, the greater the deformation resistance, the higher the intensity. When the same material at the same temperature of the cold deformation, the greater the intensity, the higher the degree of deformation, the lower the ductility.
Aluminum Solid Solution Strengthening
In the aluminum alloy add some elements to form a solid solution unlimited or limited solid solution can not only obtain high strength, but also to obtain excellent ductility and good pressure processing performance. In general aluminum solid solution strengthening of the most common alloying elements are copper, magnesium, manganese, zinc, silicon, nickel and other elements. Aluminum alloy generally limited solid solution is formed, such as Al-Cu, Al-Mg, Al-Zn, Al-Si, Al-Mn alloy, etc. Aluminum alloy are formed finite binary solid solution, and have a greater solubility limit can play larger solid solution strengthening effect.