Crystal Structures and Textures in the Hot-Forged Ni-Mn-Ga Shape Memory Alloys From: Metallurgical and Materials Transactions | Date: May 1, 2006| Author: Cong, D Y; Wang, Y D; Peng, R Lin; Zetterstrà ¶ m, P; Et al | Copyright Minerals, Metals & Materials Society May 2006. Provided by ProQuest LLC.Copyright information

Three ferromagnetic shape-memory alloys with the chemical compositions of Ni^sub 53^Mn^sub 25^Ga^sub 22^, Ni^sub 48^Mn^sub 30^Ga^sub 22^, and Ni^sub 48^Mn^sub 25^Ga^sub 22^Co^sub 5^ were prepared by the induction-melting and hot-forging process. The crystal structures were investigated by the neutron powder diffraction technique, showing that Ni^sub 53^Mn^sub 25^Ga^sub 22^ and Ni^sub 48^Mn^sub 25^Ga^sub 22^Co^sub 5^ have a tetragonal, I4/mmm martensitic structure at room temperature, while Ni...