Multi-function elasto-plastic titanium has low modulus. (Materials Progress: Metals).

Advanced Materials & Processes,  July, 2003  

Tags: alloy, Toyota Motor Corp.

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A super--elasto--plastic titanium alloy with low Young's modulus and high strength has reportedly been developed by Toyota Central Labs Inc., Japan. Its elastic properties enable cold working to 999% at room temperature, and strength can be increased to 2100 MPa (300 ksi) by applying a simple heat treatment process.

Called GUM metal, it is a powder metallurgy beta titanium alloy with a body-centered cubic structure and composition Ti3 (Ta+Nb+V) + (Zr, Hf, O). Its elastic coefficient is not constant, and it shows nonlinear elastic deformation, with Young's modulus ranging from 20 to ...

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