|Title:||Effects of annealing on mechanical behavior of Zr-Ti-Ni thin film metallic glasses||Authors:||Chen C.-S.
|Keywords:||Amorphous alloys;Annealing;Hardness measurement;Mechanical characterization;Nanoindentation;Shear bands||Issue Date:||2014||Journal Volume:||608||Start page/Pages:||258-264||Source:||Materials Science and Engineering A||Abstract:||
Zr46Ti26Ni28 thin film metallic glass was fabricated by radio frequency magnetron single target sputtering on Si and stainless steel substrates. The as-deposited film was found to be fully amorphous with high glass transition and crystallization temperatures of 466¢XC and 502¢XC, respectively. Its hardness progressively increased from 6.2GPa to as high as 11.1GPa when subjected to annealing near the glass-transition temperature at 450¢XC. It was also of good adhesive strength and scratch resistance after the annealing treatment at 400¢XC. Transmission electron microscopy results revealed annealing-induced nanocrystals that accounted for such superior mechanical properties. With the above unique properties, Zr-Ti-Ni thin film metallic glass has the potential for the fabrication of high strength micro parts and protective coating. ? 2014 Elsevier B.V.
|Appears in Collections:||材料科學與工程學系|
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