| 摘要 |
<p>The invention relates to a method for producing a medical implant from a titanium alloy by precision casting the titanium alloy in a mold corresponding to the implant to be produced. The invention uses a ??-titanium alloy, hot-isostatic pressing, solution annealing and subsequent quenching. The invention also relates to a corresponding medical implant that is made from a titanium alloy in the precision casting method. The titanium alloy is a ??-titanium alloy and has a mean grain-size of at least 0.3 mm. The invention enables an efficient production of objects from ??-titanium alloys in the precision casting process. The invention thus creates the possibility of combining the advantageous properties of ??-titanium alloys, particularly their excellent mechanical properties, with the advantages of a production of objects in the precision casting process. Even implants having complex shapes, such as femoral parts (1) of hip joint prostheses, which could not or could not be sensibly produced by conventional forging methods, can now be produced from a ??-titanium alloy thanks to the invention.</p> |
