Structural and Mechanical Characterization of Zr58.5Ti8.2Cu14.2Ni11.4Al7.7 Bulk Metallic Glass

doi:10.3390/ma5010001

This article is

freely available
re-usable

Materials 2012, 5(1), 1-11; doi:10.3390/ma5010001

Article

Structural and Mechanical Characterization of Zr_58.5Ti_8.2Cu_14.2Ni_11.4Al_7.7 Bulk Metallic Glass

Konda G. Prashanth^1,* , Sergio Scudino¹, Mohsen Samadi Khoshkhoo¹, Kumar B. Surreddi^1,†, Mihai Stoica¹, Gavin Vaughan² and Jürgen Eckert^1,3

¹ IFW Dresden, Institut für Komplexe Materialien, Postfach 270116, Dresden D-01171, Germany ² European Synchrotron Radiation Facilities (ESRF), BP 220, Grenoble 38043, France ³ TU Dresden, Institut für Werkstoffwissenschaft, Dresden D-01062, Germany ^† Present address: Department of Materials and Manufacturing Technology, Chalmers University of Technology, Göteborg 41296, Sweden.

* Author to whom correspondence should be addressed.

Received: 1 November 2011; in revised form: 7 December 2011 / Accepted: 14 December 2011 / Published: 22 December 2011

(This article belongs to the Special Issue Advances in Bulk Metallic Glasses)

Download PDF Full-Text [3126 KB, uploaded 22 December 2011 14:33 CET]

Abstract: Thermal stability, structure and mechanical properties of the multi-component Zr_58.5Ti_8.2Cu_14.2Ni_11.4Al_7.7 bulk metallic glass have been studied in detail. The glassy material displays good thermal stability against crystallization and a fairly large supercooled liquid region of 52 K. During heating, the alloy transforms into a metastable icosahedral quasicrystalline phase in the first stage of crystallization. At high temperatures, the quasicrystalline phase undergoes a transformation to form tetragonal and cubic NiZr₂-type phases. Room-temperature compression tests of the as-cast sample show good mechanical properties, namely, high compressive strength of about 1,630 MPa and fracture strain of 3.3%. This is combined with a density of 6.32 g/cm³ and values of Poisson’s ratio and Young’s modulus of 0.377 and 77 GPa, respectively. The mechanical properties of the glass can be further improved by cold rolling. The compressive strength rises to 1,780 MPa and the fracture strain increases to 8.3% for the material cold-rolled to a diameter reduction of 10%.

Keywords: bulk metallic glass (BMG); crystallization; mechanical properties

Article Statistics

Click here to load and display the download statistics.

Cite This Article

MDPI and ACS Style

Prashanth, K.G.; Scudino, S.; Khoshkhoo, M.S.; Surreddi, K.B.; Stoica, M.; Vaughan, G.; Eckert, J. Structural and Mechanical Characterization of Zr_58.5Ti_8.2Cu_14.2Ni_11.4Al_7.7 Bulk Metallic Glass. Materials 2012, 5, 1-11.

AMA Style

Prashanth KG, Scudino S, Khoshkhoo MS, Surreddi KB, Stoica M, Vaughan G, Eckert J. Structural and Mechanical Characterization of Zr_58.5Ti_8.2Cu_14.2Ni_11.4Al_7.7 Bulk Metallic Glass. Materials. 2012; 5(1):1-11.

Chicago/Turabian Style

Prashanth, Konda G.; Scudino, Sergio; Khoshkhoo, Mohsen Samadi; Surreddi, Kumar B.; Stoica, Mihai; Vaughan, Gavin; Eckert, Jürgen. 2012. "Structural and Mechanical Characterization of Zr_58.5Ti_8.2Cu_14.2Ni_11.4Al_7.7 Bulk Metallic Glass." Materials 5, no. 1: 1-11.

Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert