Solid solution effects in contracted Mg-Zn alloys

Blake, Andrew (2001). Solid solution effects in contracted Mg-Zn alloys B.Sc Thesis, School of Engineering, The University of Queensland.

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Author Blake, Andrew
Thesis Title Solid solution effects in contracted Mg-Zn alloys
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2001
Thesis type B.Sc Thesis
Supervisor Dr. Carlos H. Cáceres
Total pages 39
Language eng
Subjects 091405 Mining Engineering
Formatted abstract

Previous research has been carried out in single crystals of dilute (up to 1 at%) zinc and aluminium alloys, with a number of models suggested to describe the behaviour. This research intends to determine whether the relationship holds for polycrystals of concentrated zinc alloys, with contents up to 3 at%. It is known that zinc increases the critical resolved shear stress of the basal planes, improving the proof stress, whilst they also produce solid solution softening on the prismatic planes, producing alloys which are more ductile than pure magnesium.

Zinc additions increase hardness and strength of magnesium alloys, so it is the intent to quantify the effect of zinc on the performance of the alloy. Grain refined castings have been made with additions ranging from 0.3-3at%.

Zinc has shown a stronger strengthening (on the basal plane) than can be explained by Fleischer and Labusch’s theories in comparison with previous work with aluminium. The effect is believed to be caused by short range order strengthening.

Keyword Mg-Zn alloys
Solid solution effects
Additional Notes *Mining, Minerals Processing and Materials Engineering undergraduate theses. 2001.

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
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Created: Fri, 31 May 2013, 12:10:36 EST by Mr Yun Xiao on behalf of Scholarly Communication and Digitisation Service