Influence Of Elements And Rolling On The Electromagnetic Shielding Performance Of Magnesium Alloy

Magnesium alloy as a potential electromagnetic shielding material received more and more attention, from based on the research for electromagnetic shielding performance of magnesium alloy is also very necessary.This article adopts the method of casting the preparation of a series of binary, ternary magnesium alloy, the organization of the casting alloy were characterized and electromagnetic shielding performance study; Research on the binary and terna--ry alloy elements the influence of the related features of casting magnesium alloy, and discusses the alloying elements for the second phase, grain size, texture effect on the properties of alloy electromagnetic shielding. Choose a better performance of the ternary magnesium alloy rolling deformation processing, the role of research for alloy electromagnetic shielding performance of rolling, the specific research results are as follows:The series dual magnesium alloy(Mg-x Gd, Mg-x Pb, Mg-x Zn) tissue charac--terization and electromagnetic shielding performance research. Within each binary system, with the increase of content of alloy elements, dual magnesium alloy conductivity decreases, binary alloy electromagnetic shielding effectiveness will increase after the first. System for the three binary magnesium alloy, the compo--sition of binary magnesium alloys for Mg-5Gd optimal electromagnetic shielding performance, and in low frequency and high frequency electromagnetic waves have higher and more stable performance of electromagnetic shielding.On the basis of Mg-5Gd composition, further adding alloying elements prepa--ration of magnesium alloy as-cast three yuan(Mg-5Gd-x Zn, Mg-5Gd-x Cu. Mg-5Gd- x Zn ternary magnesium alloy with the increase of alloy elements, electrical conductivity of the alloy increase, but the electromagnetic shielding performance due to the particularity of the second phase distribution in Mg-5Gd-x Zn best; Mg--5Gd-x Cu magnesium alloy reached the highest when Cu content of 3%.Set up the fitted curve of change between electrical conductivity and element types of alloy as-cast alloy, a preliminary study of alloy elements on the influence of the conductivity of alloy. Three kinds of alloy elements on the electrical conduc--tivity of magnesium alloys has been increased ability to include: Zn >Gd > Pb.Let Mg-5Gd-3Zn and Mg-5Gd-1Cu have solid solution treatment, rolling de--formation,study the influence of texture for electromagnetic shielding performan--ce.Actually, rolling for magnesium alloy could promote the electromagnetic shield--ing performance of magnetic alloys.Under rolling,Mg-5Gd-1Cu alloy enhances its electromagnetic electromagnetic shielding performance, but Mg-5Gd-3Zn declines its electromagnetic electromagnetic shielding performance after rolling, for the as--cast mesh have taken place in the second phase structure, but the second phases lo--se the special structure after rooling.Rolling influences the texture to influence the electromagnetic shielding performance.