Preparation method of TiCu50 master alloy material by vacuum consumable arc melting

Abstract

The invention discloses a preparation method of a TiCu50 master alloy material by vacuum consumable arc melting, which mainly comprises the following steps: (1) mixing raw materials: according to theweight percentage content, the percentage contents of raw material are: Cu 50%, and TiO 50%, the required raw materials are weighted according to the proportion, and the raw materials are mixed in a mixer; (2) pressing: the mixed powder is loaded into a rubber sleeve and is subjected to mechanical vibration, rolling and reverse material mounding, and then the cold isostatic pressing method is adopted to press the mixed powder, and then the pressure-keeping treatment is carried out; (3) sintering: the pressed consumable electrode is loaded into a vacuum sintering furnace for sintering, and thesintering temperature, the holding time and the vacuum degree are controlled; Step (4) smelting: the sintered consumable electrode is charged into a vacuum consumable arc smelting furnace for smelting. The TiCu50 master alloy material prepared by the invention has low gas content and less impurities, and is uniform in composition, and has no macroscopic and microscopic defects such as enrichment of Cu and Ti.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal alloys, in particular to a method for preparing a TiCu50 master alloy material by vacuum consumable arc melting. Background technique [0002] Due to its good biocompatibility, corrosion resistance and mechanical properties, titanium alloys are widely used in bone implant materials such as bone screws, steel plates and dental implants. However, bacterial infection of titanium alloys after implantation in the body is still is an important complication. Over the past decades, surface modification has been proven to be an effective method for fabricating implants with antimicrobial surfaces, including off-site implantation, plasma immersion, deposition, plasma spraying, magnetron sputtering, electroplating, etc. However, this surface modification method is limited by the properties of the surface film layer. Once the film layer is damaged, the antibacterial properties will disappear. Ther...

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Problems solved by technology

[0004] At present, the methods of producing titanium-copper alloy at home and abroad include: mechanical alloying method and powder metallurgy method, mechanical alloying method: a certain proportion of Cu powder and Ti powder are ground in a high-energy ball mill for a long time, so that the metal powder is in the process of frequent collisions. In this method, its microstructure is continuously refined, and finally achieves the purpose of alloying by mixing at the atomic level, but this method is easy to substitute impurity elements in the ball milling process, and the cost is high

Powder metallurgy method: mix high-purity titanium powder and high-purity copper powder by ball milling for a certain period of time, and then pressure sinter to prepare titanium-copper alloy, but the alloy prepared by this method has low density and hardness seriously restricts its development