Effects of Heat Treatment on a High-Pressure Die-Cast Mg-La-Y Alloy

Serge Gavras; Su Ming Zhu; Mark A. Easton; Mark A. Gibson; Jian Feng Nie

doi:10.4028/www.scientific.net/MSF.690.210

Paper Titles

In Situ Studies of Light Metals with Synchrotron Radiation and Neutrons
p.192

Texture Development of Mg AZ80 after Cyclic Loading at 80% Yield Stress
p.198

The Relation between Shear Banding, Microstructure and Mechanical Properties in Mg and Mg-Y Alloys
p.202

Introduction to the Interdependence Theory of Grain Formation and its Application to Aluminium, Magnesium and Titanium Alloys
p.206

Effects of Heat Treatment on a High-Pressure Die-Cast Mg-La-Y Alloy
p.210

The Intermetallic Phases in Sand Casting Magnesium Alloys for Elevated Temperature
p.214

Crystalline Structure of Metastable Phases in Mg-Nd Alloy Containing Zn and Zr
p.218

Liquid Atomic Structure and Viscosity of Al-Si Alloys with and without Sr
p.222

Rheology of Liquid Al, Zn and Zn-7wt%Al Systems
p.226

HomeMaterials Science ForumMaterials Science Forum Vol. 690Effects of Heat Treatment on a High-Pressure...

Effects of Heat Treatment on a High-Pressure Die-Cast Mg-La-Y Alloy

Abstract:

In this study effects of heat treatments on the creep resistance at 177°C/90MPa of a high-pressure die-cast Mg-2.70La-1.50Y (wt.%) alloy were examined. It was found that ageing at 160°C for 24 h (T5) or a solution treatment at 520°C for 1 h (T4) improved creep resistance and caused no blistering on the surface or dimensional changes to the die-cast specimens. TEM was used to characterize the microstructures of heat-treated samples. Improvements to creep resistance might be attributed to the pinning or otherwise retarding of dislocation motion by precipitates and/or solute atoms during creep.

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Periodical:

Materials Science Forum (Volume 690)

Pages:

210-213

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.690.210

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Online since:

June 2011

Authors:

Serge Gavras, Su Ming Zhu, Mark A. Easton, Mark A. Gibson, Jian Feng Nie

Keywords:

Creep, Heat Treatment, High Pressure Die Cast, Magnesium Alloy, Precipitation

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