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Initial study of strengthening of NiAl–Cr(Mo)–Hf alloys by strong magnetic field

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Abstract

It was found that after treatment under 10T magnetic field and temperature 900 °C the bending strength of NiAl–Cr(Mo)–Hf alloy is increased by about 75%. The fracture section observation shows that the specimens’ ductility is enhanced by the magnetic field treatment. Electron probe microanalysis shows that after treatment of the magnetic field the Heusler phases at NiAl/Cr(Mo) grain boundaries are partially dissolved and the small Heusler phases particles at Cr(Mo) and matrix phases interfaces almost dissolved into NiAl matrix.

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Authors and Affiliations

  1. National Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    G. J. Ma, C. W. Wu, X. L. Guo & M. F. Ren

  2. Department of Materials Engineering, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    W. L. Zhou

  3. Shengyang Institute of Metals Research, Chinese Academy, Shengyang, 110015, People’s Republic of China

    J. T. Guo

Authors
  1. G. J. Ma
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  2. C. W. Wu
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  3. W. L. Zhou
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  4. X. L. Guo
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  5. M. F. Ren
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  6. J. T. Guo
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Correspondence to C. W. Wu.

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Ma, G.J., Wu, C.W., Zhou, W.L. et al. Initial study of strengthening of NiAl–Cr(Mo)–Hf alloys by strong magnetic field. Journal of Materials Research 20, 295–298 (2005). https://doi.org/10.1557/JMR.2005.0047

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  • DOI: https://doi.org/10.1557/JMR.2005.0047

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