Mechanical Properties of Amorphous Al85Ni10La5 Alloy by Indentations Academic Article

abstract

• AbstractIndentation techniques have been carried out to study the mechanical behavior of amorphous Al85Ni10La5 alloy powders produced by inert gas atomization. The present work reveals that this amorphous alloy undergoes a three-stage crystallization process in the temperature range of 250C ~ 390C, with a glass transition temperature of approximately 259C. In this study, the influence of devitrification on mechanical response was investigated via indentation of the Al85Ni10La5 alloy powders annealed at various temperatures, for instance, at temperatures well below or close to glass transition (235C, 245C, 250C), and well above glass transition (283C). Moreover, the microstructure evolution and the formation of nanoscale crystallites were studied using TEM and XRD. The influence of devitrification on the indentation response was characterized, paying particular attention to shear band formation and variations in hardness. The hardening behavior was analyzed on the basis of a rule-of-mixtures approach by treating the partially crystallized alloy as a nanocomposite.

authors

• Lavernia Borrego, Enrique

published proceedings

• MRS Advances

author list (cited authors)

• Zhang, Z., Ajdelsztajn, L., Zhou, Y., & Lavernia, E. J.

complete list of authors

• Zhang, Zhihui||Ajdelsztajn, Leonardo||Zhou, Yizhang||Lavernia, Enrique J

publication date

• 2005

publisher

• Springer Nature  Publisher

published in

• MRS Advances  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering

Digital Object Identifier (DOI)

• 10.1557/proc-880-bb1.11

start page

• bb1.11

volume

• 880

URL

• http://dx.doi.org/10.1557/proc-880-bb1.11