Paper Title:
Effect of Nano-Crystallization on the Mechanical Properties of the (Zr53Cu30Ni9Al8)99.5Si0.5 Bulk Metallic Glass
  Abstract

The (Zr53Cu30Ni9Al8)99.5Si0.5 bulk metallic glass (BMG) rods, 3 mm in diameter, with different crystallization fraction for compression test were prepared by isothermal annealing the as-cast BMG rods at the temperature in the middle of supercooled temperature region for different time period in vacuum, respectively. The result of compression test revealed that the fracture strength of these samples increases with the crystallization ratio at the beginning, then decreases rapidly at 40 vol.% crystallization fraction. In addition, the best mechanical performance with 1970MPa yield strength and 3 % plastic strain occurs at the sample with 30 vol.% nanocrystalline phase (with an average size about 50 nm). This was suggested these homogeneous distributed nanocrystals which embedded in the matrix may act as obstacles to branch the primary shear band into multiple shear band and result in improving the ductility.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
2933-2937
DOI
10.4028/www.scientific.net/MSF.638-642.2933
Citation
Z.W. Hsiao, C.C. Fu, P.H. Tsai, J. S.C. Jang, S.R. Jian, J.C. Huang, "Effect of Nano-Crystallization on the Mechanical Properties of the (Zr53Cu30Ni9Al8)99.5Si0.5 Bulk Metallic Glass", Materials Science Forum, Vols. 638-642, pp. 2933-2937, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: K. Konopka, M. Trzaska, Dariusz Oleszak, W. Zieliński, Krzysztof J. Kurzydłowski
249
Authors: Ming Xiang Pan, Wei Hua Wang, Yong Hu, De Qian Zhao, Yan Hui Zhao, Tatsuya Okada, W. Utsumi
53
Authors: Sung Chul Lim, Kyung Hoon Kim, Heung Bok Lee, Hyo Soo Lee, Hyouk Chon Kwon
Abstract:In this study, rod type Cu54Ni6Zr22Ti18 bulk amorphous alloy fabricated by warm extrusion of amorphous powders was investigated. To get bulk...
281
Authors: Victor I. Kolomytsev, M. Babanly, Alexandre Pasko, A.P. Shpak, Tetjana Sych, P. Ochin, Philippe Vermaut, Richard Portier, Eduard Cesari, D. Rafaja
Abstract:A series of multielementary AB-type shape memory alloys, quaternary (Ti,Hf)50(Ni,Cu)50 and quinary (Ti,Zr,Hf)50(Ni,Cu)50, have been produced...
113
Authors: Y.B. Yuan, Rui Xiao Zheng, Su Jing Ge, Han Yang, Chao Li Ma
Abstract:Al86Ni7Y4.5Co1La1.5 (at.%) alloy powder was produced by argon gas atomization process....
281