Method for preparing ruthenium-containing corrosion resistant titanium alloy

Abstract

A method for preparing ruthenium-containing corrosion-resistant titanium alloy relates to a method for adding the element ruthenium to the titanium ingot smelting, and is applied to the procedure of preparing titanium and titanium alloy in the fields, such as nuclear power, metallurgy, petrochemical engineering and the like. The method, which adopts the materials of sponge titanium and master alloy to press electrodes and the preparation method of vacuum arc smelting, is characterized in that the alloy composition ruthenium is added in the form of powder when the electrodes are pressed. All you need to do for realizing the new smelting process for preparing the ruthenium-containing titanium alloy without changing the original process for preparing the titanium and the titanium alloy is to add the ruthenium powder in a certain amount to the procedure of pressing the electrodes, and the prepared element ruthenium is evenly distributed without metallurgical defects, such as inclusion and the like. The invention has the remarkable advantages of convenient operation, low cost, precise and stable composition control and the like, solves the problem with the addition of the element ruthenium in smelting the titanium ingot and improves the corrosion resistance of the titanium material on the premise that the conventional performance of the prepared ruthenium-containing titanium alloy is not affected, therefore, the method can meet the requirements of the titanium material in the industrial field.

Description

technical field [0001] The invention relates to a method for preparing a ruthenium-containing corrosion-resistant titanium alloy. Background technique [0002] Due to its excellent corrosion resistance, the application of titanium continues to expand, and it has become an increasingly important engineering corrosion-resistant metal, widely used in petroleum refining, seawater desalination, metallurgical engineering, salt production and other fields. The main corrosion-resistant titanium alloys include titanium-palladium alloy, titanium-molybdenum-nickel alloy and titanium-molybdenum alloy, among which titanium-palladium alloy is a kind of titanium alloy with better resistance to crevice corrosion used in industry. Titanium-palladium metal α alloy, its process performance and mechanical properties are similar to pure titanium, the weld has the same corrosion resistance as the base metal, it is widely used in chlorine-saturated brine, moist halogen, acid chloride solution, the...

AI Technical Summary

Problems solved by technology

The conventional smelting process of ruthenium-containing alloys is prepared by sponge titanium and ruthenium-containing master alloys (Ti-Ru, etc.), and its production steps include ruthenium-containing master alloy ingot smelting, turning chips, crushing, selection, screening and other processes to prepare master alloys , using sponge titanium and intermediate alloys to press electrode blocks, welding electrode blocks into electrodes for smelting, and smelting into ingots in a vacuum arc furnace. This process has problems such as many processes, long cycle time, and high cost.