Abstract
Abstract
Mg-Mn alloy is welded by friction stir welding technology to manufacture liquid-cooled components in radar equipment. The effect of welding processes on microstructure and mechanical properties of Mg-Mn alloy was analyzed. The results show that the rotation speed has little effect on the microstructure structure when it is above 1200 rpm. The strength is increased by the increase of rotation speed from 900 rpm to 1500 rpm. The highest ultimate tensile strength is about 175 MPa. Most of the welding joints show brittle fracture during tensile test.
Subject
General Physics and Astronomy