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Full Record for Micrograph 732

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Micrograph no
732
Brief description
Magnesium alloy
Keywords
magnesium
Categories
Metal or alloy
System
Mg-Zn
Composition
Mg 94.05, Zn 5.62, Zr 0.19, Ce 0.10, Nd 0.03 (wt%) (RZ5 Alloy)
Standard codes
Reaction
Processing
Tensile test at 300°C.
Applications
RZ5 magnesium alloy is commonly used for wheels in both Formula One and Super-bike competitions because of its high strength to weight ratio.
Sample preparation
Standard polishing techniques
Technique
Scanning electron microscopy (SEM) in backscattered electron imaging (BEI) mode
Length bar
200 μm
Further information
This micrograph shows the ductility of magnesium under tensile loading, manifested by elongated grains parallel to the applied loading. The zinc rich grain boundary phase is more brittle and at distances from the fracture surface shows cracking and formation of micro-voids.
Contributor
R J Mitchell
Organisation
Department of Engineering, University of Leicester
Date
05/03/03
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales
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