GUM METAL

Elasto-plastic metal is an entirely new titanium alloy having low Young's modulus and high strength that cannot be obtained from conventional metallic materials. This alloy has super-elastic nature one digit higher in elastic deformation (2.5%) compared to general metallic materials, and super-plastic nature permitting cold working to 99.9% or more at room temperature. Furthermore, its strength can be increased to the highest in the world (2,000 MPa in tensile strength) by applying a simple heat treatment process GUM METAL belongs to the ß-type titanium alloy having a body-centered cubic structure and is basically expressed as Ti3(Ta, Nb, V) + (Zr, Hf, O). Since this alloy is hard to be processed by the ordinary melting process because of excessive macro segregation making uniform structure extremely difficult, sintering is adopted for production.