A note on the deformation of fine grained magnesium alloys

Journal Article · Wed Jul 15 00:00:00 EDT 1992 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(92)90102-K· OSTI ID:7082313

Lahaie, D; Embury, J D; Chadwick, M M ^[1]; Gray, G T ^[2]

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1. Dept. of Materials Science and Engineering, McMaster Univ., Hamilton, Ontario L8S 4L7 (CA)
2. Los Alamos National Lab., Los Alamos, NM (US)

This paper reports that there is increasing interest in the use of magnesium alloys both from the viewpoint of their strength to weight ratio in monolithic form and as a matrix for metal matrix composites. One strengthening mechanism which has received little attention in Mg is that due to reducing the grain size. Some early work explored the Hall-Petch formalisms for polycrystals of different grain sizes and recent work showed that vary fine grained materials of a commercial alloy AZ91 (composition Mg - 9% Al - 1% Zn - 0.2% Mn) can be produced by rapid quenching and subsequent consolidation. This approach has the advantage of producing bulk material which can be studied by a variety of testing methods although the product is a two phase material containing particles of Mg{sub 17}Al{sub 12}.

• OSTI ID: 7082313
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 27:2; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GRANULAR MATERIALS
DEFORMATION
PRODUCTION
MAGNESIUM BASE ALLOYS
ALUMINIUM ALLOYS
COMPOSITE MATERIALS
GRAIN SIZE
MANGANESE ALLOYS
MATRIX MATERIALS
POLYCRYSTALS
QUENCHING
TESTING
ZINC ALLOYS
ALLOYS
CRYSTAL STRUCTURE
CRYSTALS
MAGNESIUM ALLOYS
MATERIALS
MICROSTRUCTURE
SIZE
360103* - Metals & Alloys- Mechanical Properties
360101 - Metals & Alloys- Preparation & Fabrication