Effect of Reciprocating Extrusion Pass on Mechanical Properties of Building Mg-5Sn-1Si alloy plate
Due to its high strength and fire resistance,magnesium alloy sheets can be used as sound isolation and insulation materials,and are widely used in the field of high-rise buildings.Mg-5Sn-Si magnesium alloy was prepared by crucible melting and subjected to reciprocating extrusion at 300 ℃ to study the effect of extrusion passes on mechanical properties.The results show that the mechanical properties of the sample increase with the increase of extrusion passes.With the continuous reduction of grain size,more grain boundaries are formed in the poly crystalline structure,achieving the effect of strengthening the material structure.As the number of extrusion passes increases,the phenomenon of refining strength becomes more obvious,and more spherical Mg2Sn particles are formed within the small tough dimples,which enhances the mechanical properties.
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