HUTCHINSON, Christopher R.; NIE, Jian-Feng; GORSSE, Stéphane

doi:10.1007/s11661-005-0330-x

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

HUTCHINSON, Christopher R.
School of Physics and Materials Engineering

NIE, Jian-Feng
School of Physics and Materials Engineering

GORSSE, Stéphane
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Idioma

Article de revue

Este ítem está publicado en

Metallurgical and Materials Transactions A. 2005, vol. vol. 36, n° 8, p. p. 2093-2105

Springer Verlag/ASM International

Resumen en inglés

A model is developed that couples a description of the continuous precipitation of -Mg17Al12 laths at elevated temperatures to a summation of the different contributions to the room-temperature 0.2 pct proof strength in the commercial alloy AZ91 (Mg-9Al-1Zn (wt pct)). The central assumptions are the diffusion-controlled formation of shear resistant -Mg17Al12 laths on the basal planes of the hcp matrix and basal slip as the dominant room-temperature deformation mode. The calculations show quantitative agreement with the evolution of both the reported precipitation kinetics and the strengthening response as a function of aging time at 200 °C. The magnitudes of the different contributions to the hardening are discussed and strategies for enhancing this response are suggested.< Leer menos

Palabras clave en italiano

Mechanism

Modelling

Precipitation processes

Mg-Al-(Zn) AZ91 alloy

Metadatos

Licencia de uso del documento

Modeling the precipitation processes and strengthening mechanisms in a Mg-Al-(Zn) AZ91 alloy

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave en italiano

DOI

Orígen

Centros de investigación