20130087074 | COPPER-BASED ALLOY AND STRUCTURAL MATERIAL COMPRISING SAME - A copper-based alloy which contains 7.8 to 8.8 mass % of Al, 7.2 to 14.3 mass % of Mn and a remainder made up by Cu and unavoidable impurities, has a largest crystal grain diameter of more than 8 mm, has good shape memory properties, and enables the production of a structural material having a cross-section size suitable for use as a structure body or the like; and a structural material comprising the copper-based alloy. The copper-based alloy may additionally contain at least one element selected from the group consisting of Ni, Co, Fe, Ti, V, Cr, Si, Ge, Nb, Mo, W, Sn, Bi, Sb, Mg, P, Be, Zr, Zn, B, C, S, Ag and a misch metal in the total amount of 0.001 to 5 mass %. | 04-11-2013 |