High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying

Ferreira, A. S.; Rovani, P. R.; Lima, J. C. de,; Pereira, A. S.

doi:10.1063/1.4907386

Title: High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying

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Abstract

A nanostructured Ti{sub 50}Ni{sub 25}Fe{sub 25} phase (B2) was formed by mechanical alloying and its structural stability was studied as a function of pressure. The changes were followed by X-ray diffraction. The B2 phase was observed up to 7 GPa; for larger pressures, the B2 phase transformed into a trigonal/hexagonal phase (B19) that was observed up to the highest pressure used (18 GPa). Besides B2 and B19, elemental Ni or a SS-(Fe,Ni) and FeNi{sub 3} were observed. With decompression, the B2 phase was recovered. Using in situ angle-dispersive X-ray diffraction patterns, the single line method was applied to obtain the apparent crystallite size and the microstrain for both the B2 and the B19 phases as a function of the applied pressure. Values of the bulk modulus for the B2, B19, elemental Ni or SS-(Fe,Ni) and FeNi{sub 3} phases were obtained by fitting the pressure dependence of the volume to a Birch–Murnaghan equation of state (BMEOS)

Authors:

Ferreira, A. S. ^[1]; Rovani, P. R. ^[2]; Lima, J. C. de, ^[3]; Pereira, A. S. ^[2]

Departamento de Engenharia Mecânica, Universidade Federal de Santa Catarina, CP 476 Florianópolis, Santa Catarina 88040-900 (Brazil)
Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970 (Brazil)
Departamento de Física, Universidade Federal de Santa Catarina, CP 476 Florianópolis, 88040-900 Santa Catarina (Brazil)

Publication Date:: Sat Feb 21 00:00:00 EST 2015

OSTI Identifier:: 22413146

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 117; Journal Issue: 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EQUATIONS OF STATE; HEXAGONAL LATTICES; IRON ALLOYS; NANOSTRUCTURES; NICKEL ALLOYS; PHASE STABILITY; PHASE STUDIES; POWDERS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; TITANIUM BASE ALLOYS; TRIGONAL LATTICES; X-RAY DIFFRACTION

Citation Formats


                    Ferreira, A. S., Rovani, P. R., Lima, J. C. de,, Pereira, A. S., and Departamento de Materiais, Escola de Engenharia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970. High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4907386.

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                    Ferreira, A. S., Rovani, P. R., Lima, J. C. de,, Pereira, A. S., & Departamento de Materiais, Escola de Engenharia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970. High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying.  United States.  https://doi.org/10.1063/1.4907386

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                    Ferreira, A. S., Rovani, P. R., Lima, J. C. de,, Pereira, A. S., and Departamento de Materiais, Escola de Engenharia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970. 2015.  
        "High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying".  United States.  https://doi.org/10.1063/1.4907386.

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@article{osti_22413146,

  title        = {High-pressure study of Ti{sub 50}Ni{sub 25}Fe{sub 25} powder produced by mechanical alloying},

  author       = {Ferreira, A. S. and Rovani, P. R. and Lima, J. C. de, and Pereira, A. S. and Departamento de Materiais, Escola de Engenharia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970},

  abstractNote = {A nanostructured Ti{sub 50}Ni{sub 25}Fe{sub 25} phase (B2) was formed by mechanical alloying and its structural stability was studied as a function of pressure. The changes were followed by X-ray diffraction. The B2 phase was observed up to 7 GPa; for larger pressures, the B2 phase transformed into a trigonal/hexagonal phase (B19) that was observed up to the highest pressure used (18 GPa). Besides B2 and B19, elemental Ni or a SS-(Fe,Ni) and FeNi{sub 3} were observed. With decompression, the B2 phase was recovered. Using in situ angle-dispersive X-ray diffraction patterns, the single line method was applied to obtain the apparent crystallite size and the microstrain for both the B2 and the B19 phases as a function of the applied pressure. Values of the bulk modulus for the B2, B19, elemental Ni or SS-(Fe,Ni) and FeNi{sub 3} phases were obtained by fitting the pressure dependence of the volume to a Birch–Murnaghan equation of state (BMEOS)},

  doi          = {10.1063/1.4907386},

  url          = {https://www.osti.gov/biblio/22413146},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 7,

  volume       = 117,

  place        = {United States},

  year         = {Sat Feb 21 00:00:00 EST 2015},

  month        = {Sat Feb 21 00:00:00 EST 2015}

}

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