Treatment process for improving structure and performance of Al-Mg alloy

Abstract

The invention provides a treatment process for improving a structure and a performance of an Al-Mg alloy. The treatment process adopts a solution treatment process for insulating the Al-Mg alloy for 5 hours at 535 DEG C; when the insulation is finished, the Al-Mg alloy is taken out from a box type heat treatment furnace; and the room-temperature water cooling is immediately performed. When the solution temperature is 535 DEG C, the solid solution saturation degree of the alloy is fuller, the mechanical performance is better under the condition of less reduced electrical resistivity, the electrical conductivity is 51.46% IACS, the tensile strength reaches a peak value of 141 MPa, the dendritic segregation in the alloy is basically eliminated, the component distribution is uniform, the grain boundary becomes thin, and the insulation for 5 h at the temperature is a more proper solution process for an Al-Mg alloy sample.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a treatment process for improving the microstructure and properties of Al-Mg alloys. Background technique [0002] Al-Mg alloy has low density, high mechanical properties, excellent corrosion resistance, good cutting performance, and the machined surface is bright and beautiful. At present, the addition of rare earth elements to the alloy is used to improve its mechanical properties, electrical properties and grain refinement. The addition of rare earth elements has a great influence on it, and it is difficult to ensure a complete analysis of the effect of suitable rare earth elements on its performance. , and processing the alloy to improve its mechanical properties, electrical properties and grain refinement is a simple way to achieve the same effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

AI Technical Summary

Problems solved by technology

At present, the addition of rare earth elements to the alloy is used to improve its mechanical properties, electrical properties and grain refinement. The addition of rare earth elements has a great influence on it, and it is difficult to ensure a complete analysis of the effect of suitable rare earth elements on its performance. , and the processing of the alloy to improve its mechanical properties, electrical properties and grain refinement is a simple way to achieve the same effect

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