Diffusionless phase transformation characteristics of Mn 75.7Pt24.3

H. E. Karaca, S. M. Saghaian, H. Tobe, E. Acar, B. Basaran, M. Nagasako, R. Kainuma, R. D. Noebe

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Phase transformation, damping, and magnetic properties of a Mn 75.7Pt24.3 (at.%) alloy were characterized. It was observed that Mn75.7Pt24.3 exhibits a stable phase transformation in the temperature range of 180-200 C with a small temperature hysteresis and maximum transformation strain of ∼0.5%. The crystal structures and lattice parameters of the transforming phases were determined, where both the high and low temperature phases have a face-centered cubic structure but with different lattice parameters. Finally, it was revealed that the alloy possesses high damping capacity (average Tan Delta of 0.16) during phase transformation.

Original languageEnglish
Pages (from-to)412-415
Number of pages4
JournalJournal of Alloys and Compounds
StatePublished - Mar 15 2014

Bibliographical note

Funding Information:
This work was supported by the NASA Fundamental Aeronautics Program, Aeronautical Sciences Project and the NASA EPSCOR program under Grant no: NNX11AQ31A and National Science Foundation (NSF) CMMI award #0954541 .


  • Damping
  • MnPt
  • Phase transformations
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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