MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Microindentation of a Zr57Ti5Cu20Ni8Al10 Bulk Metallic Glass
Rong ChenFuqian YangPeter K. LiawGuojiang FanHahn Choo
Author information
JOURNALS FREE ACCESS

2007 Volume 48 Issue 7 Pages 1743-1747

Details
Abstract

Using microindentation technique, the indentation behavior of a Zr57Ti5Cu20Ni8Al10 bulk-metallic glass is studied over a range of the indentation load from 200 mN to 5000 mN. For the indentation load larger than 1000 mN, the indentation load-depth curves during unloading display three regions, a) a fast unloading phase at the onset of unloading, b) a linear phase at which the indentation load is proportional to the indentation depth, and c) a slow unloading phase after the linear phase. The size of the linear region increases with the increase in the indentation load, and the slope is independent of the indentation load. The indentation hardness decreases slightly with the increase in the indentation load. The plastic energy dissipated in an indentation cycle is proportional to the 3/2 power of the indentation load. The effect of the indentation loading rate on the indentation behavior is discussed.

Information related to the author
© 2007 The Japan Institute of Metals and Materials
Previous article Next article
feedback
Top