Microstructure and creep behavior in AE42 magnesium die-casting alloy

The microstructural analysis of die-cast AE42 reveals a correlation between microstructure and creep strength. A lamellar-phase Al,RE3, which dominates the interdendritic microstructure of the alloy, partly decomposes above 150 deg C into A12RE and Al (forming Mg,,412). The increased solubility of a...

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Veröffentlicht in:JOM (1989) 2002-08, Vol.54 (8), p.34-38
Hauptverfasser: Powell, Bob R, Rezhets, Vadim, Balogh, Michael P, Waldo, Richard A
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container_title JOM (1989)
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creator Powell, Bob R
Rezhets, Vadim
Balogh, Michael P
Waldo, Richard A
description The microstructural analysis of die-cast AE42 reveals a correlation between microstructure and creep strength. A lamellar-phase Al,RE3, which dominates the interdendritic microstructure of the alloy, partly decomposes above 150 deg C into A12RE and Al (forming Mg,,412). The increased solubility of aluminum in magnesium at higher temperatures may also promote the decomposition of Al,,RE,. The creep strength decreases sharply with these phase changes.
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source SpringerLink Journals - AutoHoldings
subjects Alloys
Aluminum
Automobile industry
Decomposition
Die casting
Ductility
Magnesium alloys
Mechanical properties
Metalworking industry
Microscopy
Microstructure
Precipitation hardening
R&D
Rare earth elements
Research & development
Solidification
Spectrum analysis
Temperature
title Microstructure and creep behavior in AE42 magnesium die-casting alloy
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