Abstract: A method, for the production of profiles (16) of a light metal material, in particular a magnesium material, by means of extrusion with a hydrostatic extrusion device (10), is disclosed. A volume of material (15) is pressed through a die (14), having the form of the desired profile (16) in order to form the profile (16). A grain refiner is added to the light metal material to form the material volume (15) used in the extrusion process.

Abstract: The invention relates to a method for producing metal matrix composite materials, including at least one proportion of magnesium or one magnesium alloy and involving at least one production step in which a thixomolding ensues. According to the invention, an Mg2Si phase having a volume fraction of at least 2% is incorporated in a metal matrix preferably comprised of magnesium or of a magnesium alloy. The inventive method uses the thixomolding method for the in-situ production of a metallic composite material and is advantageous in that a broad range of adjustable volume fractions of the Mg2Si phase in the composite material results whereby enabling the properties of the composite material to be individually modified. The inventive metal matrix composite material is particularly suited for producing thermally stressed parts of motor vehicles such as pistons or the like.

Abstract: A biocompatible material from which solid structures such as for example screws or plates can be manufactured, which are used for fixing bone fractures or damage and display an adequate mechanical stability. A mixture of apatite and a magnesium alloy, in the form of chips or powder, is ground in a ball mill until a homogeneous mixture forms. The homogeneous mixture is consolidated in a second step. This can be carried out by extrusion or forging. The desired shape can then be extracted from the obtained solid material by machining.

Abstract: The present invention relates to an apparatus for determining the hot tearing susceptibility of metallic melts, comprising a casting mould, which has a first subvolume and a second subvolume, the second subvolume being formed as a tubular portion with a first end and a second end, the first end being connected to the first subvolume, comprising a measuring element, which extends into the second end of the tubular portion, and comprising a measuring device for recording a force on the measuring element and/or a change in position of the measuring element in the direction of extent of the tubular portion, the measuring device being coupled with the measuring element. The object of allowing an improved quantitative and qualitative determination of hot tearing susceptibility is achieved by the cross-sectional area of the tubular portion being reduced in the direction of the second end in each and every subportion of the tubular portion that may be selected substantially over the entire length.

Abstract: The present invention relates to a corrosion resistant magnesium alloy which can be prepared with a justifiable expenditure of energy from scrap or impure copper containing precursors and displays a ductility such that it can be used as a casting or kneading material. The magnesium alloy contains, relative to the total weight of the magnesium alloy, 1 to 9 wt. % aluminium, 0.6 to 6 wt. % zinc, 0.1 to 2 wt. % manganese, 0 to 2 wt. % rare earth elements, 0.5 to 2 wt. % copper, wherein the weight ratio of aluminium to zinc lies in the range from 1:1 to 2:1.

Abstract: The invention relates to the development of a corrosion-resistant magnesium secondary alloy. In the field of magnesium metallurgy, no secondary alloys have existed so far such as they exist in the case of other metals such as aluminium, for example. Magnesium alloys are corrosion-resistant if the copper, nickel and iron contents are very low. Recycling of old scrap metal with the aim of again producing structural parts has therefore not been possible up till now since too much copper and nickel are contained in this scrap metal According to the invention, this problem is solved by a new magnesium secondary alloy having been developed which, in spite of higher contents of copper, nickel, iron and silicon, possesses the same corrosion properties as pure magnesium alloys.

Abstract: A magnesium based alloy for high pressure die casting, comprising at least 83 wt % magnesium; 4.5 to 10 wt % Al; wt % Zn that is comprised in one of the two ranges 0.01 to 1 and 5 to 10; 0.15 to 1.0 wt % Mn; 0.05 to 1 wt % of rare earth elements; 0.01 to 0.2 wt % Sr; 0.0005 to 0.0015 wt % Be; and calcium in an amount higher than 0.3 (wt % Al -4.0).sup.0.5 wt % and lower than 1.2 wt %. The alloy may further comprise incidental impurities. The alloy may comprise at least 88 wt % magnesium, 4.5 to 10 wt % Al, 0.1 to 1 wt % of rare earth elements. The alloy may contain 5 to 10 wt % Zn and 0.1 to 1 wt % of rare earth elements, and wherein the zinc content is related to the aluminum content by the formula: wt % Zn=8.2-2.2 in (wt % Al -3.5).