Preparation method of medical titanium alloy with ultrahigh yield strength and low modulus

The invention discloses a preparation method of a medical titanium alloy with ultrahigh yield strength and low modulus, which comprises the following steps of: heating, preserving heat and cooling a TC4-5Cu alloy subjected to selective laser cladding at 800-850 DEG C to convert an alpha + alpha'...

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Bibliographische Detailangaben
Hauptverfasser:	LI KUNMAO, WU XIANG, LIU XIAOCHUN, ZHANG JIAXUAN, LIU YUJING, ZHANG ZILIN, TANG GUOGAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ALLOYS CASTING CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FERROUS OR NON-FERROUS ALLOYS HUMAN NECESSITIES HYGIENE MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention discloses a preparation method of a medical titanium alloy with ultrahigh yield strength and low modulus, which comprises the following steps of: heating, preserving heat and cooling a TC4-5Cu alloy subjected to selective laser cladding at 800-850 DEG C to convert an alpha + alpha'structure into an alpha + alpha ', so as to obtain a low-modulus high-strength copper-containing double-phase titanium alloy. According to the preparation method, an original alpha'needle-shaped structure formed by selective laser melting can be converted into an alpha 'layered structure and Ti2Cu is separated out only through heat treatment, so that the whole treatment process is simple, and influence factors are small; according to the preparation method, the layered alpha ''phase and the separated Ti2Cu phase obtained after heat treatment have the performance of ultrahigh yield strength and lower Young modulus, so that the phenomenon that the modulus of the TC4-5Cu alloy is not matched in biomedicine is effectively