Anomalous hardness behaviour of high pressure die-cast Mg-Al alloys

Bowles, A. and Caceres, C. H. (2003) Anomalous hardness behaviour of high pressure die-cast Mg-Al alloys. Metallurgical Science &Technology, 21 1: 25-26.


Author Bowles, A.
Caceres, C. H.
Title Anomalous hardness behaviour of high pressure die-cast Mg-Al alloys
Journal name Metallurgical Science &Technology
Publication date 2003
Sub-type Article
Volume number 21
Issue number 1
Start page 25
End page 26
Total pages 2
Place of publication Carmagnola, Italy
Publisher Teksid Aluminum
Language eng
Subject 0912 Materials Engineering
Abstract The yield stress (0.2%) of 5 mm thick high pressure die-cast AZ91 and AM60 alloys has been compared to the respective Vickers hardness. The yield stress and hardness were measured in as-cast specimens, and in specimens directly aged (from the as-cast condition) at 120°C for up to 10000 h. Unlike a range of sand cast and permanent mould cast Mg-Al alloys and an AZ91 alloy, for which the hardness increase proportionally to the yield stress, in high pressure die-cast magnesium alloys the hardness tends to be lower than expected from their yield stress.
Keyword Mg-Al alloys
Die-casting
High pressure
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

 
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