Phase transitions and magnetic properties of Ni(Co)-Mn-Al melt-spun ribbons

作者：Lyange M^*; Khovaylo V; Singh R; Srivastava S K; Chatterjee R; Varga L K

来源：Journal of Alloys and Compounds, 2014, 586: S218-S221.

DOI：10.1016/j.jallcom.2013.02.158

• Melt-spinning
• Martensitic transformations
• Heusler alloys
• Metamagnetic shape memory alloys

We have studied the influence of Cobalt addition on phase transition temperatures and magnetic properties of melt-spun ribbons of Ni50-xCoxMn31+yAl19-y (x = 0-10, y = 0-3) magnetic shape memory alloys. It was found that addition of Co has a marked influence on the magnetic properties as well as martensitic transformation temperature of the ribbons. Specifically, as compared to a weakly magnetic Co-free (x, y = 0) sample, the Ni50-xCoxMn31+yAl19-y (x = 5, 10) ribbons demonstrate ferromagnetic properties. The Ni45Co5Mn32Al18 sample was found to exhibit a well-defined metamagnetic transformation. Thus, our results can be considered as a successful development of metamagnetic shape memory ribbon in the Ni(Co)-Mn-Al system.

• 出版日期2014-2-15