Design and preparation of Zn-based materials possessing both high damping and good mechanical properties

A new idea of design and manufacture of metal based materials possessing both high damping and good mechanical properties was proposed. The key of the idea is the combination of fining restriction damping structures, using all mechanisms and taking advantages of different materials. Based upon this idea a foam ZA27 was prepared by the technology of prefabricated salt mass centrifugal seeping foundry, its tensile strength and compressive strength are 83～119?MPa and 100～189?MPa, respectively. The damping properties of the foam ZA27 increase remarkably after the carpenter pastern or rosin (the damping increased materials) was immerged into it, which approaches to the level of viscous elastic polymer materials ( Q -1 ≥20×10 -3 ). [

A new idea of design and manufacture of metal-based materials possessing both high damping and good mechanical properties was proposed. The key of the idea is the combination of fining restriction-damping structures, using all mechanisms and taking advantages of different materials. Based upon this idea a foam ZA27 was prepared by the technology of prefabricated salt-mass centrifugal seeping foundry, its tensile strength and compressive strength are 83 similar to 119 MPa and 100 similar to 189 MPa, respectively. The damping properties of the foam ZA27 increase remarkably after the carpenter pastern or rosin (the damping-increased materials) was immerged into it, which approaches to the level of viscous-elastic polymer materials (Q(-1) greater than or equal to 20 x 10(-3)).