Method for the preparation of ultra-fine grain titanium and titanium alloy articles and articles prepared by this method

摘要

A method for manufacturing an ultra fine grain titanium or titanium alloy article, comprising lasetapas of: providing a coarse grained titanium or titanium alloy material (52) having a grain primeradimensión; heating said titanium or material (52) of the titanium alloy at a first temperature, in where establishedpublic first temperature is below the processing temperature of the solution and defusion temperature of said titanium or alloy material titanium ; introducing said heated titanium material or the titanium alloy into a device (50) processing instrumentation friction stirring (50); agitating the said titanium in solution or material of titanium alloy inside the mencionadodispositivo (50) processing the friction stir to impart a structure (52) grain ultra finoen the said heated titanium or alloy material titanium; remove and rebind said ultra fine grain titanium or titanium alloy material (52) forming an article from said ultra fine grain titanium material or titanium alloy; artificially yenvejecer said article to form an ultra-fine grain titanium or an article (78) of titanium alloys