METHOD FOR PRODUCING A COMPONENT FROM AN AMORPHOUS-PHASE METAL ALLOY
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Abstract
The invention relates to a method for producing a component from an at least partially amorphous metal alloy, having the steps of: preparing a powder of an at least partially amorphous metal alloy, wherein the powder consists of spherical powder particles and the powder particles have a diameter of less than 125 μm; pressing the powder into the desired shape of the component to be generated; compressing and sintering the powder by means of a heat treatment of the powder during pressing or after pressing at a temperature between the transformation temperature and the crystallisation temperature of the amorphous phase of the metal alloy, wherein the duration of the heat treatment is chosen such that the component is sintered after heat treatment and has an amorphous fraction of at least 85 percent. The invention also relates to a component made of a pressed, sintered, spherical, amorphous metal alloy powder, wherein the component has an amorphous fraction of at least 85 percent, and to the use of such a component as gear wheel, abrasive wheel, wear-resistant component, housing, watch casing, part of a gearing or semi-finished product.
22 Citations
29 Claims
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1-15. -15. (canceled)
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16. A process for producing a component of an at least partly amorphous metal alloy comprising the following steps:
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providing a powder of an at least partly amorphous metal alloy, the powder consisting of spherical particles having a diameter of less than 125 μ
m;pressing the powder into the desired shape of the component to be produced; compressing and sintering the powder by a heat treatment, during or after the pressing, at a temperature between the transformation temperature and the crystallization temperature of the amorphous phase of the metal alloy, the duration of the heat treatment being selected so that after the heat treatment the component is sintered and has an amorphous proportion of at least 85 percent. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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- 28. A component made of a pressed, sintered, spherical, amorphous metal alloy powder, the component having an amorphous proportion of at least 85 percent.
Specification