Ni-Ti SEMI-FINISHED PRODUCT AND METHOD FOR PRODUCING THE SAME

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PROBLEM TO BE SOLVED : To provide an Ni-Ti semi-finished product and to provide a method for producing the same.SOLUTION : Semi-finished products for production of devices containing thermoelastic materials with improved reliability and reproducibility are described. The semi-finished products are based on an alloy of Ni-Ti plus elements X and/or Y. The nickel content is included between 40 and 52 atom%, X is included between 0.1 and 1 atom%, Y is included between 1 and 10 atom% and the balance is titanium. The one or more additional elements X are chosen from the group including Al, Ta, Hf, Si, Ca, Ce, La, Re, Nb, V, W, Y, Zr, Mo, and B. The one or more additional elements Y are chosen from the group including Al, Ag, Au, Co, Cr, Fe, Mn, Mo, Nb, Pd, Pt, Ta and W.