Method for preparing Al-Ti alloy or plated Al-Ti alloy by low-temperature electrolytic deposition of ionic liquid

Abstract

The invention relates to a method for preparing Al-Ti alloy or plated Al-Ti alloy by low-temperature electrolytic deposition of ionic liquid, which is characterized by synthesizing an ionic liquid from an organic material and anhydrous aluminium trichloride, adding a right amount of titanium salt to prepare an ionic liquid electrolyte, taking a substrate which is pre-treated as a deposition cathode and preparing Al-Ti alloy or plated Al-Ti alloy by direct current electrolytic deposition, wherein the titanium content within the alloy can be as high as 30%. The method provided by the invention has the advantages that the ionic liquid used therein has wide resource, low price and wide electrochemical window, the electrical conductivity is high, the ionic liquid is friendly to environment and the titanium salt can be effectively dissolved, the temperature of electrolytic deposition and cell voltage can be effectively reduced by using low-temperature electrolytic deposition process of ionic liquid to prepare Al-Ti alloy and the plating thereof, the energy consumption is reduced, the corrosion of the device is greatly reduced, the properties of the deposition layer which is obtained thereby are high and the thickness of the deposition layer and the titanium content of the alloy are easy to be controlled.

Description

technical field

[0001] The invention particularly relates to a method for preparing Al-Ti alloy or electroplating Al-Ti alloy by adopting ionic liquid low-temperature electrodeposition technology. It belongs to the field of nonferrous metallurgy. Background technique

[0002] Al-Ti alloys have excellent properties such as corrosion resistance, high temperature oxidation resistance, and high specific strength, and are increasingly widely used in aerospace, marine, petroleum, energy, chemical, and medical fields. The current industrial production method for producing Al-Ti alloy mainly adopts the fusion of pure metal aluminum and titanium. The production of Al-Ti alloys by this method not only consumes a large amount of electric energy at a relatively high temperature, but also uses expensive pure metal titanium, and the resulting products often have serious segregation, which limits the application of Al-Ti alloys. Researchers are trying to develop a new, low-cost and simpl...