Elastic properties of Zr-based bulk metallic glasses studied by resonant ultrasound spectroscopy

2007 ◽  
Vol 22 (2) ◽  
pp. 364-367 ◽  
Author(s):  
Zhiying Zhang ◽  
Veerle Keppens ◽  
Peter K. Liaw ◽  
Yoshihiko Yokoyama ◽  
Akihisa Inoue
Keyword(s):  
Mechanical Properties ◽  
Elastic Properties ◽  
Metallic Glasses ◽  
Elastic Moduli ◽  
Accurate Determination ◽  
Bulk Metallic Glasses ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound ◽  
Longitudinal Modulus

We report measurements of the elastic properties of Zr-based bulk metallic glasses, Zr52.5Cu17.9Ni14.6Al10Ti5, Zr50Cu30Ni10Al10, and Zr50Cu40Al10 between 5 K and 300 K. Both the shear and longitudinal modulus have been measured as a function of temperature, allowing accurate determination of the Poisson’s ratio and the related ratio of bulk modulus to shear modulus, K/G. These data make it possible to assess the influence of the alloy’s composition on the mechanical properties and enable an evaluation of the correlation between the elastic moduli and the ductility of the alloys.

scholarly journals Softening of Shear Elastic Coefficients in Shape Memory Alloys Near the Martensitic Transition: A Study by Laser-Based Resonant Ultrasound Spectroscopy

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1383
Author(s):  
Petr Sedlák ◽  
Michaela Janovská ◽  
Lucie Bodnárová ◽  
Oleg Heczko ◽  
Hanuš Seiner
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Single Crystals ◽  
Accurate Determination ◽  
Martensitic Transition ◽  
Elastic Coefficient ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound

We discuss the suitability of laser-based resonant ultrasound spectroscopy (RUS) for the characterization of soft shearing modes in single crystals of shape memory alloys that are close to the transition temperatures. We show, using a numerical simulation, that the RUS method enables the accurate determination of the c′ shear elastic coefficient, even for very strong anisotropy, and without being sensitive to misorientations of the used single crystal. Subsequently, we apply the RUS method to single crystals of three typical examples of shape memory alloys (Cu-Al-Ni, Ni-Mn-Ga, and NiTi), and discuss the advantages of using the laser-based contactless RUS arrangement for temperature-resolved measurements of elastic constants.

scholarly journals Publisher’s Note: “Determination of single crystal elastic moduli of KTb3F10 by resonant ultrasound spectroscopy” [J. Appl. Phys 128, 165104 (2020)]

2020 ◽  
Vol 128 (23) ◽  
pp. 239902
Author(s):  
Ashiwini Balodhi ◽  
Kelvin Chang ◽  
Kevin T. Stevens ◽  
Sunil K. Chakrapani ◽  
Susan M. Ennaceur ◽  
...  
Keyword(s):  
Single Crystal ◽  
Elastic Moduli ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound

Experimental Investigation of Galfenol Elastic Properties and Auxetic Behavior

2008 ◽  
Author(s):  
Holly M. Schurter ◽  
Alison B. Flatau ◽  
Gabriela Petculescu ◽  
Marilyn Wun-Fogle
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Experimental Investigation ◽  
Elastic Properties ◽  
Tensile Testing ◽  
Metal Alloys ◽  
Resonant Ultrasound Spectroscopy ◽  
Dog Bone ◽  
Gallium Alloys ◽  
Resonant Ultrasound

Iron-gallium alloys (known as Galfenol) are one of only a few metal alloys known to exhibit large auxetic or negative Poisson’s ratio behavior. The mechanical properties of Galfenol, including the auxeticity, are strongly dependent on the composition of the alloy. This research seeks to measure the elastic properties of Galfenol through a range of practical compositions in order to create a database as well as present trends in the elastic properties. This is achieved through tensile testing of single-crystal Galfenol dog-bone-shaped specimens and through Resonant Ultrasound Spectroscopy (RUS) of small parallelepiped samples. The effects of heat treatment were also studied. This project will enable future researchers to refer to the elastic properties of the alloy measured using two different techniques, as well as enable them to select the alloy with optimum elastic properties for their applications.

scholarly journals Determination of elastic properties of polycrystalline U3Si2 using resonant ultrasound spectroscopy

2018 ◽  
Vol 498 ◽  
pp. 438-444 ◽  
Author(s):  
U. Carvajal-Nunez ◽  
T.A. Saleh ◽  
J.T. White ◽  
B. Maiorov ◽  
A.T. Nelson
Keyword(s):  
Elastic Properties ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound

Nonlinear Elastic Properties of Bulk Metallic Glasses Zr52.5Ti5Cu17.9Ni14.6Al10 and Pd40Cu30Ni10P20

2006 ◽  
Vol 115 ◽  
pp. 127-132 ◽  
Author(s):  
N.P. Kobelev ◽  
E.L. Kolyvanov ◽  
V.A. Khonik
Keyword(s):  
Elastic Properties ◽  
Uniaxial Compression ◽  
Metallic Glasses ◽  
Elastic Moduli ◽  
Bulk Metallic Glasses ◽  
Third Order ◽  
The Third ◽  
Nonlinear Elastic

The effect of uniaxial compression on the ultrasound velocities in bulk glassy Zr52.5Ti5Cu17.9Ni14.6Al10 and Pd40Cu30Ni10P20 has been studied and the third-order elastic moduli of these glasses have been determined.

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