skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Direct evidence on magnetic-field-induced phase transition in a NiCoMnIn ferromagnetic shape memory alloy under a stress field

Abstract

The magnetoelasticity and magnetoplasticity behaviors of a Ni-Co-Mn-In ferromagnetic shape memory alloy (FSMA) induced by the reverse phase transformation interplayed under multiple (temperature, magnetic, and stress) fields were captured directly by high-energy synchrotron x-ray diffraction technique. The experiments showed the direct experimental evidence of that a stress ({approx}50 MPa) applied to this material made a complete recovery of the original orientations of the martensite variants, showing a full shape memory effect. This finding offers the in-depth understanding the fundamental properties and applications of the Ni-Co-Mn-In FSMA with the magnetic-field-induced reverse transformation.

Authors:
; ; ; ; ; ; ; ; ; ;  [1];  [2];  [2];  [3];  [2];  [2]
  1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004 (China) and Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996 (United States)
  2. (United States)
  3. (Ministry of Education), Northeastern University, Shenyang 110004 (China)
Publication Date:
OSTI Identifier:
20971863
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 10; Other Information: DOI: 10.1063/1.2712509; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT ALLOYS; FERROMAGNETIC MATERIALS; INDIUM ALLOYS; MAGNETIC FIELDS; MANGANESE ALLOYS; MARTENSITE; NICKEL ALLOYS; PHASE TRANSFORMATIONS; PLASTICITY; PRESSURE DEPENDENCE; PRESSURE RANGE MEGA PA 10-100; SHAPE MEMORY EFFECT; STRESSES; X-RAY DIFFRACTION

Citation Formats

Wang, Y. D., Ren Yang, Huang, E. W., Nie, Z. H., Wang, G., Liu, Y. D., Deng, J. N., Zuo, L., Choo, H., Liaw, P. K., Brown, D. E., X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, Key Laboratory for Anisotropy and Texture of Materials, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, and Department of Physics, Northern Illinois University, DeKalb, Illinois 60115. Direct evidence on magnetic-field-induced phase transition in a NiCoMnIn ferromagnetic shape memory alloy under a stress field. United States: N. p., 2007. Web. doi:10.1063/1.2712509.
Wang, Y. D., Ren Yang, Huang, E. W., Nie, Z. H., Wang, G., Liu, Y. D., Deng, J. N., Zuo, L., Choo, H., Liaw, P. K., Brown, D. E., X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, Key Laboratory for Anisotropy and Texture of Materials, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, & Department of Physics, Northern Illinois University, DeKalb, Illinois 60115. Direct evidence on magnetic-field-induced phase transition in a NiCoMnIn ferromagnetic shape memory alloy under a stress field. United States. doi:10.1063/1.2712509.
Wang, Y. D., Ren Yang, Huang, E. W., Nie, Z. H., Wang, G., Liu, Y. D., Deng, J. N., Zuo, L., Choo, H., Liaw, P. K., Brown, D. E., X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, Key Laboratory for Anisotropy and Texture of Materials, Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, and Department of Physics, Northern Illinois University, DeKalb, Illinois 60115. Mon . "Direct evidence on magnetic-field-induced phase transition in a NiCoMnIn ferromagnetic shape memory alloy under a stress field". United States. doi:10.1063/1.2712509.
@article{osti_20971863,
title = {Direct evidence on magnetic-field-induced phase transition in a NiCoMnIn ferromagnetic shape memory alloy under a stress field},
author = {Wang, Y. D. and Ren Yang and Huang, E. W. and Nie, Z. H. and Wang, G. and Liu, Y. D. and Deng, J. N. and Zuo, L. and Choo, H. and Liaw, P. K. and Brown, D. E. and X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439 and Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996 and Key Laboratory for Anisotropy and Texture of Materials and Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996 and Department of Physics, Northern Illinois University, DeKalb, Illinois 60115},
abstractNote = {The magnetoelasticity and magnetoplasticity behaviors of a Ni-Co-Mn-In ferromagnetic shape memory alloy (FSMA) induced by the reverse phase transformation interplayed under multiple (temperature, magnetic, and stress) fields were captured directly by high-energy synchrotron x-ray diffraction technique. The experiments showed the direct experimental evidence of that a stress ({approx}50 MPa) applied to this material made a complete recovery of the original orientations of the martensite variants, showing a full shape memory effect. This finding offers the in-depth understanding the fundamental properties and applications of the Ni-Co-Mn-In FSMA with the magnetic-field-induced reverse transformation.},
doi = {10.1063/1.2712509},
journal = {Applied Physics Letters},
number = 10,
volume = 90,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2007},
month = {Mon Mar 05 00:00:00 EST 2007}
}
  • The magnetoelasticity and magnetoplasticity behaviors of a Ni-Co-Mn-In ferromagnetic shape memory alloy (FSMA) induced by the reverse phase transformation interplayed under multiple (temperature, magnetic, and stress) fields were captured directly by high-energy synchrotron x-ray diffraction technique. The experiments showed the direct experimental evidence of that a stress ({approx}50 MPa) applied to this material made a complete recovery of the original orientations of the martensite variants, showing a full shape memory effect. This finding offers the in-depth understanding the fundamental properties and applications of the Ni-Co-Mn-In FSMA with the magnetic-field-induced reverse transformation.
  • The in situ time-of-flight neutron-diffraction measurements captured well the martensitic transformation behavior of the Ni-Mn-Ga ferromagnetic shape-memory alloys under uniaxial stress fields. We found that a small uniaxial stress applied during phase transformation dramatically disturbed the distribution of variants in the product phase. The observed changes in the distributions of variants may be explained by considering the role of the minimum distortion energy of the Bain transformation in the effective partition among the variants belonging to the same orientation of parent phase. It was also found that transformation kinetics under various stress fields follows the scale law. The present investigationsmore » provide the fundamental approach for scaling the evolution of microstructures in martensitic transitions, which is of general interest to the condensed matter community.« less
  • The effect of different uniaxial and triaxial stress states on the stress-induced martensitic transformation in CuZnAl was investigated. Under uniaxial loading, it was found that the compressive stress level required to macroscopically trigger the transformation was 34% larger than the required tensile stress. The triaxial tests produced effective stress-strain curves with critical transformation stress levels in between the tensile and compressive results. It was found that pure hydrostatic pressure was unable to experimentally trigger a stress-induced martensitic transformation due to the large pressures required. Traditional continuum-based transformation theories, with transformation criteria and Calusius-Clapeyron equations modified to depend on the volumemore » change during transformation, could not properly predict stress-state effects in CuZnAl. Considering a combination of hydrostatic (volume change) effects and crystallographic effects (number of transforming variants), a micromechanical model is used to estimate the dependence of the critical macroscopic transformation stress on the stress state.« less
  • Ferromagnetic shape-memory alloys have recently emerged as a new class of active materials showing very large magnetic-field-induced extensional strains. Recently, a single crystal of a tetragonally distorted Heusler alloy in the NiMnGa system has shown a 5% shear strain at room temperature in a field of 4 kOe. The magnetic and crystallographic aspects of the twin-boundary motion responsible for this effect are described. Ferromagnetic shape-memory alloys strain by virtue of the motion of the boundaries separating adjacent twin variants. The twin-boundary motion is driven by the Zeeman energy difference between the adjacent twins due to their nearly orthogonal magnetic easymore » axes and large magnetocrystalline anisotropy. The twin boundary constitutes a nearly 90 degree sign domain wall. Essentially, twin-boundary motion shorts out the more difficult magnetization rotation process. The field and stress dependence of the strain are reasonably well accounted for by minimization of a simple free energy expression including Zeeman energy, magnetic anisotropy energy, internal elastic energy, and external stress. Models indicate the limits to the magnitude of the field-induced strain and point to the material parameters that make the effect possible. The field-induced strain in ferromagnetic shape-memory alloys is contrasted with the more familiar phenomenon of magnetostriction. (c) 2000 American Institute of Physics.« less
  • At present, many investigations are done on Fe-Mn-based shape memory alloys because of their particularly good one-way type shape memory effect and their low cost. With addition of Cr and Ni, it is possible to reach a good corrosion resistance, which confers to this type of alloys a commercial significance. The shape memory effect is associated with the formation of stress-induced [var epsilon]-martensite by deformation of an austenitic ([gamma]) sample. The reversion by heating of the [var epsilon]-martensite provides the shape memory effect. It is generally admitted that the presence of thermal [var epsilon]-martensite before deformation has a negative influencemore » on the formation of the stress-induced martensite and on the shape memory effect. The authors' purpose is to evaluate the real influence of the pre-existing thermal [var epsilon]-martensite on the formation of the stress-induced [var epsilon]-martensite, its recovery and on the shape memory effect.« less