Abstract: The present invention relates to a method of bonding at a faying surface two substrates of ?-titanium aluminide alloy having a ?-single phase region at elevated temperatures, comprising the steps of applying a braze material of a titanium alloy consisting of from 10 to 35 at. % aluminum, from 5 to 30 at. % iron and/or nickel, and optionally other alloying elements present in the substrate material in quantities (at. %) up to their content in the substrate material, the remainder being titanium, at the faying surface of the substrates, and subjecting the substrates and braze material to an elevated temperature in the ?-single phase region of the substrate, and joining the substrate at the crack interface by transient liquid phase bonding.

Abstract: The present invention relates to a method of bonding two substrates of titanium aluminide alloy at a faying surface, comprising the steps of applying a braze material of a titanium alloy consisting of from 10 to 35 at. % aluminum, from 5 to 30 at. % iron and/or nickel, and optionally other alloying elements present in the substrate material in quantities (at. %) up to their content in the substrate material, the remainder being titanium, at the faying surface of the substrates, and subjecting the substrates and braze material to an elevated temperature above the melting point of the braze material and below ?-solvus temperature of the ?-titanium aluminide alloy, and joining the substrates by transient liquid phase bonding.

Abstract: The present disclosure relates to an implant for refixation of the greater trochanter on which an osteotomy has been performed or which is fractured. The implant comprises a plate that can be fixed on the proximal femur, and a device that can hold the greater trochanter with a form fit or force fit on the femur. This holding device preferably has bendable prongs located at a distance from each other, the first end portion of these prongs being attached to the upper edge of the base plate. The holding device also has flexible, elongate members, each of which is attached at one end to the free end portion of the respective prong. The other, free end portions of the longitudinal members are secured laterally on the base plate after these longitudinal members have crossed the medial aspect of the greater trochanter. This results in a tensioning band construction with at least two restraints based on a plate fixed securely on the proximal lateral femur.

Abstract: A device (1) according to the invention for externally fixing broken bones (62, 62?) of a patient, particularly the extremities, comprises a support (11) composed of a plurality of joint elements (2, 2) that are stringed together, wherein said support can be disposed outside the body of the patient. The proximal ends (41) of at least two percutaneously disposed pins (4) are anchored in the bone tissue (61) of the patient, and the distal ends (42) are fixed to the support (11). The joint elements (2) are stringed on a central tensile force element (3), and in each case two adjoining joint socket (22). The individual ball joints, and thus the support (11), can be fixed in a reversible frictionally engaged manner by applying a tensile force of the central tensile force element (3). The joint elements (2, 2?) in turn are designed such that a pin (4) can be fastened to the support (11) in a clamping and/or frictionally engaged manner by applying the tensile force of the central tensile force element (3).

Abstract: The invention concerns alloys made through the use of melting and powdered metallurgical techniques on the basis of titanium aluminides with an alloy composition of Ti-z Al-y Nb where 44.5 Atom % ?z?47 Atom %, 44.5 Atom % ?z?45.5 Atom %, and 5 Atom % ?y?10 Atom % with possibly the addition of B and/or C at a content between 0.05 Atom % and 0.8 Atom %. Said alloy is characterized in that it contains a molybdenum (Mo) content ranging between 0.1 Atom % to 3.0 Atom %.

Abstract: A device (1) according to the invention for externally fixing broken bones (62, 62?) of a patient, particularly the extremities, comprises a support (11) composed of a plurality of joint elements (2, 2) that are stringed together, wherein said support can be disposed outside the body of the patient. The proximal ends (41) of at least two percutaneously disposed pins (4) are anchored in the bone tissue (61) of the patient, and the distal ends (42) are fixed to the support (11). The joint elements (2) are stringed on a central tensile force element (3), and in each case two adjoining joint socket (22). The individual ball joints, and thus the support (11), can be fixed in a reversible frictionally engaged manner by applying a tensile force of the central tensile force element (3). The joint elements (2, 2?) in turn are designed such that a pin (4) can be fastened to the support (11) in a clamping and/or frictionally engaged manner by applying the tensile force of the central tensile force element (3).

Abstract: The present disclosure relates to an implant for refixation of the greater trochanter on which an osteotomy has been performed or which is fractured. The implant comprises a plate that can be fixed on the proximal femur, and a device that can hold the greater trochanter with a form fit or force fit on the femur. This holding device preferably has bendable prongs located at a distance from each other, the first end portion of these prongs being attached to the upper edge of the base plate. The holding device also has flexible, elongate members, each of which is attached at one end to the free end portion of the respective prong. The other, free end portions of the longitudinal members are secured laterally on the base plate after these longitudinal members have crossed the medial aspect of the greater trochanter. This results in a tensioning band construction with at least two restraints based on a plate fixed securely on the proximal lateral femur.

Abstract: The invention concerns alloys made through the use of melting and powdered metallurgical techniques on the basis of titanium aluminides with an alloy composition of Ti-z Al-y Nb where 44.5 Atom %?z?47 Atom %, 44.5 Atom %?z?45.5 Atom %, and 5 Atom %?y?10 Atom % with possibly the addition of B and/or C at a content between 0.05 Atom % and 0.8 Atom %. Said alloy is characterized in that it contains a molybdenum (Mo) content ranging between 0.1 Atom % to 3.0 Atom %.

Abstract: In a method for the treatment of metallic materials especially for the consolidation of the texture of the materials, a blank of the metallic material is heated to a transformation temperature and the blank is then subjected to twisting preferably while, at the same time, being compressed. In this way, the texture can be refined to a large degree in a simple and inexpensive manner.

Abstract: In a method for the treatment of metallic materials especially for the consolidation of the texture of the materials, a blank of the metallic material is heated to a transformation temperature and the blank is then subjected to twisting preferably while, at the same time, being compressed. In this way, the texture can be refined to a large degree in a simple and inexpensive manner.

Abstract: In a device for encapsulating blanks of metallic high temperature alloys, particularly TiAL alloys, which are subjected to forging or rolling for hot forming, at least a first inner envelope is supported on the blank in closely spaced relationship therefrom and a second envelope surrounds the first envelope and both envelopes consist of a metallic material.