Preparation method for high-strength and high-thermal-conductivity magnesium alloy sheet

Abstract

A preparation method for a high-strength and high-thermal-conductivity magnesium (Mg) alloy sheet includes the steps of: annealing a rare-earth magnesium alloy sheet at 170° C.; rolling the annealed rare-earth magnesium alloy sheet with rolls preheated to 120° C., to obtain a rolled rare-earth magnesium alloy sheet with a thickness of 1.8 mm; quenching the rolled rare-earth magnesium alloy sheet and cooling the sheet to room temperature; and performing an aging treatment on the quenched rare-earth magnesium alloy sheet at 90° C. for 24 to 48 hours, and air-cooling the sheet to room temperature to obtain the high-strength and high-thermal-conductivity magnesium alloy sheet. The magnesium alloy sheet prepared by the present disclosure can achieve a stress strength of up to 456 MPa, a yield strength of 408 MPa, an elongation of 13%, and a thermal conductivity ranging from 125 to 134 W/(m·K).

Dependencies are inferred from the claim text.