Effect of Homogenization Treatment on Microstructure and Properties of Zr-Containing 5083 Aluminum Alloy Cast-Rolled Plate
The effects of Zr and homogenizing heat treatment on the microstructure and properties of 5083 aluminum alloy cast-rolled plate are studied by means of OM,SEM and hardness test at room temperature.The results show that Zr and Al elements combine to form rod-like Al3Zr phases interspersed at the grain boundaries can effectively inhibit the recrystallization of tissues.After homogenization at 470℃/14 h,the plasticity of the cast rolled sheet is the best,and the hardness,tensile strength,yield strength and elongation of the edge and core of the cast rolled sheet are 72.82HV0.1 and 63.15HV0.1,100.13 MPa,82.27 MPa and 16.92%,respectively.
Al-Mg alloyhomogenizing treatmentZr elementmicrostructure and properties