Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C

Kailas, S V; Biswas, S K; Prasad, Y V.R.K.

doi:10.1007/BF02646530

Title: Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C

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Abstract

Cylindrical specimens of commercial pure titanium have been compressed at strain rates in the range of 0.1 to 100 s[sup [minus]1] and temperatures in the range of 25 C to 400 C. At strain rates of 10 and 100 s[sup [minus]1], the specimens exhibited adiabatic shear bands. At lower strain rates, the material deformed in an inhomogeneous fashion. These material-related instabilities are examined in the light of the phenomenological model'' and the dynamic materials mode.'' It is found that the regime of adiabatic shear band formation is predicted by the phenomenological model, while the dynamic materials model is able to predict the inhomogeneous deformation zone. The criterion based on power partitioning is competent to predict the variations within the inhomogeneous deformation zone.

Authors:

Kailas, S V ^[1]; Biswas, S K ^[2]; Prasad, Y V.R.K. ^[3]

Indian Inst. of Science, Bangalore, (India)
Indian Inst. of Science, Bangalore, (India). Dept. of Mechanical Engineering
Indian Inst. of Science, Bangalore, (India). Dept. of Metallurgy

Publication Date:: Mon Nov 01 00:00:00 EST 1993

OSTI Identifier:: 5632668

Resource Type:: Journal Article

Journal Name:: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)

Additional Journal Information:: Journal Volume: 24:11; Journal ID: ISSN 0360-2133

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; TITANIUM; MICROSTRUCTURE; COMPRESSION; CYLINDRICAL CONFIGURATION; DEFORMATION; MATHEMATICAL MODELS; STRAIN RATE; CONFIGURATION; ELEMENTS; METALS; TRANSITION ELEMENTS; 360102* - Metals & Alloys- Structure & Phase Studies

Citation Formats


                    Kailas, S V, Biswas, S K, and Prasad, Y V.R.K. Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C.  United States: N. p., 1993. 
        Web.  doi:10.1007/BF02646530.

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                    Kailas, S V, Biswas, S K, & Prasad, Y V.R.K. Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C.  United States.  https://doi.org/10.1007/BF02646530

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                    Kailas, S V, Biswas, S K, and Prasad, Y V.R.K. 1993.  
        "Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C".  United States.  https://doi.org/10.1007/BF02646530.

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@article{osti_5632668,

  title        = {Microstructural features of flow instability in [alpha]-titanium cylinders under high strain rate compression at 25[degree]C to 400[degree]C},

  author       = {Kailas, S V and Biswas, S K and Prasad, Y V.R.K.},

  abstractNote = {Cylindrical specimens of commercial pure titanium have been compressed at strain rates in the range of 0.1 to 100 s[sup [minus]1] and temperatures in the range of 25 C to 400 C. At strain rates of 10 and 100 s[sup [minus]1], the specimens exhibited adiabatic shear bands. At lower strain rates, the material deformed in an inhomogeneous fashion. These material-related instabilities are examined in the light of the phenomenological model'' and the dynamic materials mode.'' It is found that the regime of adiabatic shear band formation is predicted by the phenomenological model, while the dynamic materials model is able to predict the inhomogeneous deformation zone. The criterion based on power partitioning is competent to predict the variations within the inhomogeneous deformation zone.},

  doi          = {10.1007/BF02646530},

  url          = {https://www.osti.gov/biblio/5632668},
  journal      = {Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)},

  issn         = {0360-2133},

  number       = ,

  volume       = 24:11,

  place        = {United States},

  year         = {Mon Nov 01 00:00:00 EST 1993},

  month        = {Mon Nov 01 00:00:00 EST 1993}

}

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