This is all the more remarkable in view of the economic restrictions to which the related industries might be exposed currently.
A particular focus is put on wrought Magnesium alloys that will be of increased significance in future developments. Further strategic challenges for the extended use of magnesium materials refer to their corrosion behaviour and hence the development of reliable surface coatings.
Limiting the emission of green house gases as well as the reduction of fuel consumption are urgent topics that need to be solved in the near future especially in transportation industries. Besides more efficient processes and smart design, the use of light weight materials is one way to address these problems. Despite the fact that there is always a competition among various material groups such as light metals, steels and polymers for a use in relevant light-weight structures depending on economical aspects, materials and component requirements, magnesium alloys still offer a promising potential. With regard to their intrinsic characteristics like low density, promising mechanical properties and their high recyclability, magnesium alloys found more implementations in relevant applications. A further increase in its use is expected.
For more than fifteen years increasing activities in research and applications have been observed all over the world. This led to the development of new alloys and their use in interior, structure and the power train of automobiles. Moreover, magnesium wrought alloys are finding more applications in 3C industries. New alloys and optimised processes are also creating new ideas and stimulating competition for advanced developments to substitute traditional materials. The implementation of new cast alloys and the increased use of wrought alloys are clear indications for the sustainable research and development of the past. Nevertheless, high pressure die casting is still the predominant technology to manufacture components. In recent years, the interest in advanced casting processes using semi solid technologies like thixomolding and rheo-casting has increased. New available equipment opens a broader use of this technology promising improved mechanical properties of magnesium cast products. The use of wrought alloys is still limited due to a lack of knowledge on the improvement of the property profile of wrought alloys.
Still there is a limitation of the availability of economical processes and alloys for the universal use for extrusions, sheets and forgings. But with regard to new developments in alloys and processes like continuous casting and strip or twin-roller casting new opportunities for the enhanced use of wrought alloys will open. In addition solutions to improve the corrosion behaviour and surface properties of magnesium alloys were found.
The optimisation of the primary magnesium production and development of secondary recycling alloys will lead to a sustainable growth in magnesium use in respect to issues of the life cycle assessment of magnesium materials.
Petra von der Bey | idw
Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"
13.04.2018 | Max-Planck-Institut für molekulare Genetik
Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018
12.04.2018 | Forschungsverbund Berlin e.V.
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
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University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
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Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
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Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
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