2008•Cailiao rechuli xuebaoRequires access
Effect of heat treatment on microstructure and properties of a heat-resistant Al-Cu-Mg-Mn-Ag alloy
Kanghua Chen
Open publisher page 0 citations
Abstract
A heat-resistant Al-5.3Cu-0.8Mg-0.5Mn-0.6Ag alloy was prepared by ingot metallurgy and thermomechanical treatment.The microstructure and properties of the alloy under different heat treatment was studied with optical microscope,scanning electron microscopy,differential thermal analysis and mechanical properties testing.Meanwhile,the diffusion kinetics of the alloy elements during homogenizing treatment was studied.As a result,the optimum heat treatment technology of the alloy is as follows: homogenizing at 500℃ for 12 hours,solution at 525℃,then aging at 185℃ for 8 hours.At this condition,the tensile strength and elongation of the alloy are 570 MPa and above 10%.