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Order-disroder transtions of Cu-Al-Mn shape-memory alloys
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The order-disorder transitions in Cu-Al-Mn shape-memory alloys have been studied experimentally by means of calorimetric techniques. Results are compared with Monte Carlo simulations of a simplified BlumeEmery-Griffiths model. A first order DO3 A2 transition is obtained for the stoichiometric Cu3Al alloy, while for concentrations near Cu2AlMn two second order transitions are found: L21 B2 and B2 A2. Despite the simplicity of the model, the agreement between experimental and simulation results is remarkably good. Finally, the metastable phase diagram of bcc Cu-Al-Mn alloys is presented.
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OBRADÓ LLAURADÓ, Eduard, et al. Order-disroder transtions of Cu-Al-Mn shape-memory alloys. Physical Review B. 1998. Vol. 58, num. 21, pags. 14245-14255. ISSN 0163-1829. [consulted: 16 of June of 2026]. Available at: https://hdl.handle.net/2445/10470