Metallurgical and Materials Transactions A

, 42:3062

Structural Transitions and Magnetic Properties of Ni50Mn36.7In13.3 Particles with Amorphous-Like Phase

  • D. M. Liu
  • Z. H. Nie
  • Y. Ren
  • Y. D. Wang
  • J. Pearson
  • P. K. Liaw
  • D. E. Brown
Article

DOI: 10.1007/s11661-011-0724-x

Cite this article as:
Liu, D.M., Nie, Z.H., Ren, Y. et al. Metall and Mat Trans A (2011) 42: 3062. doi:10.1007/s11661-011-0724-x

Abstract

The high-energy ball-milling method was used for fabricating Ni50Mn36.7In13.3 fine-sized particles. The as-melt polycrystalline Ni50Mn36.7In13.3 alloy exhibits a 14 M modulated martensite structure at room temperature (RT). The atomic pair distribution function analysis together with the differential scanning calorimetry technique proved that the 14 M modulated martensite transformed to a metastable amorphous-like structure after ball milling for 8 hours. Annealing of the ball-milled particles with the amorphous-like phase first led to the crystallization to form a B2 structure at 523 K (250 °C), and then an ordered Heusler L21 structure (with a small tetragonal distortion) at 684 K (411 °C). The annealed particles undergo different structural transitions during cooling, tailored by the atomic arrangements of the high-temperature phase. Low-field thermomagnetization measurements show that the ball-milled particles with the amorphous-like structure or the atomically disordered crystalline structure exhibit a magnetic transition from the paramagnetic-like to the spin-glass state with decreasing temperature, whereas the crystalline particles with the ordered Heusler L21 structure present a ferromagnetic behavior with the Curie temperature Tc ≈ 310 K (37 °C).

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2011

Authors and Affiliations

  • D. M. Liu
    • 1
  • Z. H. Nie
    • 2
  • Y. Ren
    • 3
  • Y. D. Wang
    • 2
  • J. Pearson
    • 4
  • P. K. Liaw
    • 5
  • D. E. Brown
    • 6
  1. 1.Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education)Northeastern UniversityShenyangP.R. China
  2. 2.School of Materials Science and Engineering, Beijing Institute of TechnologyBeijingP.R. China
  3. 3.X-ray Science DivisionArgonne National LaboratoryArgonneUSA
  4. 4.Materials Science DivisionArgonne National LaboratoryArgonneUSA
  5. 5.Department of Materials Science and EngineeringThe University of TennesseeKnoxvilleUSA
  6. 6.Department of PhysicsNorthern Illinois UniversityDeKalbUSA