Phase transition, segregation and nanopore formation in high-energy heavy-ion-irradiated metallic glass

abstract

• We report elemental segregation and the formation of a nanocomposite containing a secondary amorphous phase formed along the path of an incident ion in a metallic glass (MG) irradiated with high-energy heavy ions. Electropolishing with a solution of nitric acid preferentially attacks the damaged regions along ion trajectories leaving behind 50-500 nm diameter pores. No direct crystallization is observed as a result of damage induced by a single ion, further supporting the theory that irradiation-induced crystallization of the MG is a homogeneous process. 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

authors

• Shao, Lin

published proceedings

• SCRIPTA MATERIALIA

author list (cited authors)

• Myers, M. T., Charnvanichborikarn, S., Wei, C. C., Luo, Z. P., Xie, G. Q., Kucheyev, S. O., Lucca, D. A., & Shao, L.

citation count

• 15

complete list of authors

• Myers, MT||Charnvanichborikarn, S||Wei, CC||Luo, ZP||Xie, GQ||Kucheyev, SO||Lucca, DA||Shao, L

publication date

• December 2012

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• Ion Irradiation
• Metallic Glass
• Nanocrystallization
• Nanoporous

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2012.08.015

start page

• 887

end page

• 890

volume

• 67

issue

• 11

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2012.08.015