MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Microstructural Change by Friction Stir Processing in Zr-Al-Cu-Ni Bulk Metallic Glass
Yorinobu TakigawaJunpei KobataSung Wook ChungHiroshi TsudaKenji Higashi
Author information
JOURNALS FREE ACCESS

2007 Volume 48 Issue 7 Pages 1580-1583

Details
Abstract

Microstructural change by friction stir processing (FSP) is examined in Zr-Al-Cu-Ni bulk metallic glass. The microstructure in the friction zone (FZ) exhibits an amorphous “band-like” structure, and a small number of nanoscale crystalline particles are observed along the “band-like” structure. The change in hardness with the microstructural change is examined and it is revealed that the hardness in FZ greatly increases although the volume fraction of crystalline phase is very limited. The increasing hardness is possibly explained from the combined effect of low temperature annealing during FSP and nano-size of crystalline particles.

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