Creep Modified Structural Relaxation of Fe-Based Amorphous Alloy

Alena Juríková; Kornel Csach; Jozef Miškuf

doi:10.4028/www.scientific.net/KEM.586.158

Paper Titles

Stability of Superalloys Doped with Rare Earth Elements
p.141

A Description of Local Material Properties Close to a Butt Weld
p.146

Evaluation of Local Mechanical Properties of Thin Coatings Prepared by PVD Evaporation
p.150

Influence of the Filler Root Surface Treatment on Bending Fatigue Test Results of the Hardened Gears
p.154

Creep Modified Structural Relaxation of Fe-Based Amorphous Alloy
p.158

Effect of Welding Parameters on the Quality of Spot Welds Combining AHSS Steel and HSLA Steel
p.162

Mechanical Properties of Porous Si₃N₄ Ceramics
p.166

Local Mechanical Properties of Borides in Fe-B Steels
p.170

Determination of Mechanical Properties of Active Solder Alloys Using the Measuring Method “Small Punch Test”
p.174

HomeKey Engineering MaterialsKey Engineering Materials Vol. 586Creep Modified Structural Relaxation of Fe-Based...

Creep Modified Structural Relaxation of Fe-Based Amorphous Alloy

Abstract:

Structural relaxation an creep strain recovery of the amorphous metallic glass Fe40Ni41B19 after the longtime loading at different annealing temperatures below the glass transition temperature have been studied using anisothermal differential scanning calorimetry (DSC) and dilatometry (TMA). It has been demonstrated that structural relaxation effects depend on the stress-annealing temperature of the amorphous ribbon. The influence of the stress-annealing temperature on the rearrangement of deformation defects in the amorphous alloy Fe-Ni-B was analyzed. The properties of local disordering in flow defects were analyzed by means of their activation energy spectra. In the samples stress-annealed at higher temperatures, only the relaxation centers favourably oriented to the external stress contribute to the creep strain recovery process.