Ni2Al Versus Ni5Al3 Ordering in Ni65Al35 Austenite and Martensite D. Schryvers, L. Toth, J. Van Humbeeck and J. Beyer J. Phys. IV France, 05 C8 (1995) C8-1029-C8-1033 Published online: 11 July 2014 DOI: 10.1051/jp4/1995581029