Superplastic Deformation and Viscous Flow in an Zr-Based Metallic Glass at 410 Degrees C

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The thermal properties of an amorphous alloy (composition in at.%: Zr-l0Al-5Ti-l7.9Cu-14.6Ni), and particularly the glass transition and crystallization temperature as a function of heating rate, were characterized using Differential Scanning Calorimetry (DSC). X-ray diffraction analyses and Transmission Electron Microscopy were also conducted on samples heat-treated at different temperatures for comparison with the DSC results. Superplasticity in the alloy was studied at 410 degrees C, a temperature within the supercooled liquid region. Both single strain rate and strain rate cycling tests in tension were carried out to investigate the deformation behavior of the alloy in the supercooled liquid region. The experimental ... continued below

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6 pages

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Liu, C.T.; Mukai, T.; Nieh, T.G.; Wadsworth, J. & Wang, J.G. December 1, 1998.

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The thermal properties of an amorphous alloy (composition in at.%: Zr-l0Al-5Ti-l7.9Cu-14.6Ni), and particularly the glass transition and crystallization temperature as a function of heating rate, were characterized using Differential Scanning Calorimetry (DSC). X-ray diffraction analyses and Transmission Electron Microscopy were also conducted on samples heat-treated at different temperatures for comparison with the DSC results. Superplasticity in the alloy was studied at 410 degrees C, a temperature within the supercooled liquid region. Both single strain rate and strain rate cycling tests in tension were carried out to investigate the deformation behavior of the alloy in the supercooled liquid region. The experimental results indicated that the alloy did not behave like a Newtonian fluid.

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6 pages

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OSTI as DE00010430

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  • Materials Research Society Meeting, Boston, MA (US), 12/01/1998--12/04/1998

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  • Report No.: ORNL/CP-102733
  • Report No.: KC 02 01 05 0
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 10430
  • Archival Resource Key: ark:/67531/metadc622807

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  • December 1, 1998

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  • June 16, 2015, 7:43 a.m.

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  • March 31, 2016, 1:48 p.m.

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Liu, C.T.; Mukai, T.; Nieh, T.G.; Wadsworth, J. & Wang, J.G. Superplastic Deformation and Viscous Flow in an Zr-Based Metallic Glass at 410 Degrees C, article, December 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc622807/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.