Abstract
Lean magnesium alloys are considered attractive candidates for easy and economical hot forming. Such wrought alloys, defined here as materials with a maximum alloying content of one atomic or two weight percent, are known to achieve attractive mechanical properties despite their low alloy content. The good mechanical properties and the considerable hardening potential, combined with the ease of processing, make them attractive for manufacturers and users alike. This results in potential uses in a wide range of applications, from rolled or extruded components to temporary biomedical implants. The characteristic behavior of these alloys and the optimal use of suitable alloying elements are discussed and illustrated exemplarily.
Highlights
Magnesium is widely acknowledged as the lightest structural metal and is known as being a good candidate for applications where product weight plays an important role [1]
This review aims to give a short overview of the topic ’lean wrought magnesium alloys’ by summarizing and discussing multiple relevant scientific publications in this field
This review is intended to provide an overview of the works published on Mg alloys with multiple alloying elements, up to a sum of ~2 wt.% and ~1 at.% of additions
Summary
Magnesium is widely acknowledged as the lightest structural metal and is known as being a good candidate for applications where product weight plays an important role [1] Many such potential applications are structural parts, which are usually produced by forming processes, and are characterized by improved homogeneity, reduced defect size and enhanced mechanical properties, compared to castings. In recent years, alloying concepts using only low amounts of alloying elements have shown impressive results in a broad range of topics [4,12,13] This design approach attempts to make full use of the alloying elements and tries to combine the processing and material response in the best possible way. A summary of the discussed alloys is provided in the Appendices B and C, listing the chemical compositions and the mechanical properties, including the corresponding processing parameters
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