A metallic glass formed of an alloy including: (a-c-x) atomic % of Ni, with a between 54 and 72; (b-y) atomic % of Nb, with b between 35 and 44; c atomic % of Cu, with c from 0.05 to 9; x atomic % of at least one element chosen from: Co, Fe, Ag, Mn, Pd, Au, Ir, Os, Pt, Re, Rh, Ru and Te, with x from 0 to 20; y atomic % of at least one element chosen from: Hf, Ta, Ti, Cr, Mo, Sc, V, W and Y, with y from 0 to 20; z atomic % of at least one element chosen from: B, Si, Al, Sn, Ca, Ga, In, Mg and Zn, with z from 0 to 10; at most 3 atomic % of Zr; and other elements at most 0.1% by weight each and at most 0.5% by weight in total.
Component, characterized in that it comprises at least one porous core, comprising a first material or based on a first material, with a density less than or equal to 80%, or even less than or equal to 60%, or even less than or equal to 50%, of the density of the first solid material, and in that it comprises a surface coating comprising at least one layer comprising a second at least partially amorphous metallic material overmoulded at least on the at least one porous core.
A method for machining a sample of amorphous metal alloy using a femtosecond laser, including at least one step of irradiating the sample with a laser beam along a reference trajectory to ablate material from the sample, so as to obtain a sample machined and maintained in the amorphous state, in which, the laser beam is pulsed, and the duration of each pulse is less than 1000 femtoseconds, preferably less than 600 femtoseconds, and in which the amorphous metal alloy has a critical diameter less than 5 millimeters, and/or a difference between the crystallization temperature and the glass transition temperature less than 60° C., and/or a quotient of the difference between the crystallization temperature and the glass transition temperature and of the difference between the liquidus temperature and the temperature glass transition is less than 0.12.
B23K 26/38 - Enlèvement de matière par perçage ou découpage
B23K 26/0622 - Mise en forme du faisceau laser, p. ex. à l’aide de masques ou de foyers multiples par commande directe du faisceau laser par impulsions de mise en forme
B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
B23K 103/18 - Matériaux comportant des matières différentes
The invention relates to an injection device for producing at least one amorphous metal alloy moulded part, comprising: (i) a mould having at least two injection chambers connected to at least one moulding cavity; and (ii) at least one heating means capable of melting metal elements; and a multi-piston system comprising: (1) at least two injection pistons, the respective main axes of which are each aligned with that of their corresponding injection chamber and (2) a support cooperating with each of the injection pistons; and such that the support and/or the mould are able to move along an axis parallel to the main axes of the injection pistons so as to allow the loading of the metal elements and the injection of the molten metal elements into the injection chambers. The invention also relates to an injection method for producing at least one amorphous metal alloy moulded part.
B22D 17/00 - Coulée sous pression ou moulage par injection, c.-à-d. moulage en introduisant le métal dans le moule sous haute pression
B22D 17/20 - AccessoiresCoulée sous pression ou moulage par injection, c.-à-d. moulage en introduisant le métal dans le moule sous haute pression Parties constitutives
B22D 17/22 - Moules métalliquesPlaques de moulesSupports de moulesÉquipement de refroidissement des moulesAccessoires pour l'extraction et l'éjection des pièces hors du moule
5.
METALLIC GLASSES MADE OF AN ALLOY CONTAINING ZR-CU-AL-TI-NB
The invention relates to a metallic glass formed of an alloy comprising the elements: from 45 to 68 at% of Zr, preferably from 48 to 65 at%, and less than 25 at% of Cu, preferably less than 24 at%; and between 9 and 12 at% of AI, preferably from 9 to 11 at%; and from 0.5 to 10 at% of Ti, preferably from 2 to 8 at%; and from 0.1 to 6 at% of Nb, preferably from 0.5 to 4 at%, more preferably from 1.5 to 3 at%; and other elements at most 0.1 wt% each and at most 0.5 wt% in total; and the total sum of the preceding elements being equal to 100 wt% in total; and the sum of Zr + Nb + Ti is between 64 and 69 at%, preferably from 65 to 68 at%. The invention also relates to a metallic glass part and to the method for manufacturing same.
C22C 45/10 - Alliages amorphes avec le molybdène, le tungstène, le niobium, le tantale, le titane ou le zirconium comme constituant majeur
C22F 1/02 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid en atmosphère neutre ou contrôlée ou dans le vide
C22F 1/18 - Métaux réfractaires ou à point de fusion élevé ou leurs alliages
A61C 8/00 - Moyens destinés à être fixés à l'os de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses dentairesImplants dentairesOutils pour l'implantation
A61K 6/84 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des métaux ou des alliages
The invention relates to a metallic glass formed of an alloy comprising: (a-c-x) atomic % of Ni, with a between 54 and 72; (b-y) atomic % of Nb, with b between 35 and 44; c atomic % of Cu, with c from 0.05 to 9; x atomic % of at least one element chosen from: Co, Fe, Ag, Mn, Pd, Au, Ir, Os, Pt, Re, Rh, Ru and Te, with x from 0 to 20; y atomic % of at least one element chosen from: Hf, Ta, Ti, Cr, Mo, Sc, V, W and Y, with y from 0 to 20; z atomic % of at least one element chosen from: B, Si, Al, Sn, Ca, Ga, In, Mg and Zn, with z from 0 to 10; at most 3 atomic % of Zr; and other elements at most 0.1% by weight each and at most 0.5% by weight in total. The invention also relates to a metallic glass part and to the method for manufacturing same.
The invention relates to a method for machining an amorphous metal alloy sample (1) using a femtosecond laser, comprising at least a step of irradiating the sample (1) with a laser beam (2) along a reference path (TRef) in order to ablate material of the sample (1), such as to obtain a machined sample (1) maintained in the amorphous state, wherein the laser beam (2) is pulsed and the duration of each pulse is less than 1000 femtoseconds, preferably less than 600 femtoseconds, and the laser beam (2) pulse frequency (f) is greater than 20kHz. According to the invention, the amorphous metal alloy has a submillimetre critical diameter (Dc), and/or a difference (ΔTx) between crystallisation temperature (Tx) and glass transition temperature (Tg) of less than 60°C, and/or a quotient (ΔTx/(TI-Tg)) of the difference (ΔTx) between crystallisation temperature (Tx) and glass transition temperature (Tg) and the difference between liquidus temperature (Tl) and glass transition temperature (Tg) of less than 0.12.
B23K 26/046 - Focalisation automatique du faisceau laser
B23K 26/0622 - Mise en forme du faisceau laser, p. ex. à l’aide de masques ou de foyers multiples par commande directe du faisceau laser par impulsions de mise en forme
B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
B23K 26/352 - Travail par rayon laser, p. ex. soudage, découpage ou perçage pour le traitement de surface
Device and method for injection moulding a metal alloy intended for manufacturing at least one part made of an amorphous metal alloy or metallic glass, wherein: an injection mould (2) delimits a cavity that has a receiving face (4) and a frontal moulding face (5) opposite the receiving face, at least one sacrificial shaping insert (7) is placed in said cavity and has a rear face (8), at least one contact zone of which is adjacent to at least one contact zone of said receiving face of the cavity and a front face (9) that is situated opposite said moulding face of the mould and provided with a recessed shape, and an injection piston (I I) is movable in a chamber (12) of the mould and communicates with the moulding impression.
B22D 29/00 - Extraction des pièces hors du moule, non limitée à un procédé de coulée couvert par un seul groupe principalExtraction des noyauxManipulation des lingots
B22C 1/00 - Compositions des matériaux réfractaires pour moules ou noyauxLeur structure granulaireCaractéristiques chimiques ou physiques de la mise en forme ou de la fabrication des moules
B22D 17/10 - Machines à chambre froide, c.-à-d. dont la chambre de presse où on verse le métal liquide, n'est pas préchauffée avec mouvement horizontal de la presse
B22D 17/22 - Moules métalliquesPlaques de moulesSupports de moulesÉquipement de refroidissement des moulesAccessoires pour l'extraction et l'éjection des pièces hors du moule
9.
INJECTION-MOULDING DEVICE AND METHOD FOR MANUFACTURING PARTS MADE OF METALLIC GLASS
Device and method for injection moulding a metal alloy intended for manufacturing at least one part made of an amorphous metal alloy or metallic glass, wherein: an injection mould (2) delimits a cavity that has a receiving face (4) and a frontal moulding face (5) opposite the receiving face, at least one sacrificial shaping insert (7) is placed in said cavity and has a rear face (8), at least one contact zone of which is adjacent to at least one contact zone of said receiving face of the cavity and a front face (9) that is situated opposite said moulding face of the mould and provided with a recessed shape, and an injection piston (11) is movable in a chamber (12) of the mould and communicates with the moulding impression.
B22D 17/10 - Machines à chambre froide, c.-à-d. dont la chambre de presse où on verse le métal liquide, n'est pas préchauffée avec mouvement horizontal de la presse
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Building castings of metal alloys; Alloy forgings (rough or semi-finished -) [metal]; amorphous metal alloys; Statues and works of art of common metals; Metal mouldings; Common metals and their alloys; Unprocessed and semi-processed materials of metal, not specified for use; Metal hardware; Molds of metal; Alloys of metal; Foundry molds [moulds] of metal; Building and construction materials and elements of metal; Containers, and transportation and packaging articles, of metal. Dental prostheses; Dental equipment; Artificial organs and implants; Medical and veterinary apparatus and instruments; Prosthetics and artificial implants. Parts and fittings for chronometric instruments; Chronometric instruments; Precious metals; Horological and chronometric instruments; Horological articles; Jewelry; Parts for clocks; Parts and fittings for horological instruments; Parts for clockworks; Time instruments; Alloys of precious metal. Treating [shaping] of metal; Treating [embossing] of metal; Metalworking; Cutting of metal; Metal melting services; Shaping of metal components; Metal casting; Treating [stamping] of metal; Metal pressing; Metallurgical smelting; Die-casting of metals. Analysis and evaluation of product design; Material testing services; Engineering design and consultancy; Testing, authentication and quality control; Computer aided part and mould design services; Engineering feasibility studies; Engineering testing; Design and testing for new product development; Engineering project studies; Conducting engineering surveys; Quality assurance consultancy; Engineering consultancy services; Engineering services for others; Research and development services; Technical measuring and testing; Advisory services relating to material testing; Technical project planning in the field of engineering; Design of industrial machinery; Engineering services for the design of machinery; Design of specialist machinery; Computer-aided engineering design services; Quality checking and testing; Science and technology services; Design of moulds; Conducting industrial tests; Analysis and evaluation of product development; Advisory services relating to industrial engineering; Design services; Materials testing and evaluation; Preparation of engineering reports; Industrial testing of engineering works; Technological advisory services relating to machine engineering analysis; Engineering research; Materials testing and analysing; Provision of information relating to industrial engineering; Engineering consultancy relating to design.
