AGING PHENOMENA IN MAGNESIUM-RICH ZINC ALLOYS

Formability of Magnesium Alloys

The paper is focused on issues of processing of non-ferrous metals in practice, namely on Mg-Al-Zn based on magnesium alloys with graded Al contents. It is well known that forming of these alloys is difficult since this feature is caused by their crystallographic arrangement. Nevertheless, application of appropriate methods of forming, such as e.g. some of SPD processes, makes it possible to ac...

Magnesium, Zinc and Iron Alloys for Medical Applications in Biodegradable Implants

Biodegradable materials are developed for designing temporary medical implants, like fixation devices for fractured bones or stents. At present, polymeric biomaterials such as poly-lactic acid (PLA) are currently used in these applications. The disadvantage of polymers is a low mechanical strength, hardness and wear resistance that is the main limitation for the use in load-bearing implants. Fo...

Laser Welding of Magnesium Alloys

Aiming at establishing a reliable welding technique for magnesium alloys, the laser weldability of different types of magnesium alloys has been investigated using a high-brightness disc laser. It was found that high quality joints could be fabricated in the case of wrought type alloys when a certain defocusing level was optimized for the employed high-brightness laser beam of the newly develope...

Wetting phenomena in bcc binary alloys

The wetting behavior at the free (100) surface of a bcc binary alloy exhibiting a continuous order-disorder transition in the bulk is investigated theoretically, using a model equivalent to a bcc Ising antiferromagnet in an external magnetic field. Its salient feature is the generation of an effective ordering surface field , g1 6= 0, for certain symmetry-breaking surface orientations like (100...

Deformation and Recrystallization Behaviors in Magnesium Alloys