With the social and economic development and the continuous emergence of various new technologies, as well as the continuous expansion of the application of titanium and alloys, the research on their surface treatment technology has been strengthened all over the world in the past decade. In order to improve the wear resistance, corrosion resistance, and biocompatibility of titanium alloys, nanoparticles are prepared on their surface by an anodic oxidation process, which has become one of the hot topics in the current field.
The anodized technique is a process of forming an oxide film on the metal surface by electrolysis, which forms oxygen on the anode in an electrochemical manner and reacts with the titanium surface of the anode to form an oxide film. It is simple to operate and easy to operate. By adjusting the anodizing parameters (voltage, current, electrolyte concentration, etc.), anodizing with different structures and different chemical properties can be obtained, expanding the application field of titanium and titanium alloys. Therefore, it has become an effective way to improve performance.
|
|
|
The anodized film of titanium and titanium alloy has higher hardness, strength, corrosion resistance, and wear resistance, it can prevent oxygen permeation, and can show various colors. It is an ideal protective layer and decorative layer.in order to realize the anodizing, the surface of titanium material needs to be cleaned in advance. Only in this way can the color be shiny and bright.
The surface oxidation treatment of titanium and titanium alloy can produce a variety of colors, including more than ten kinds of color films such as gray, brown, Tan, purple, ultra-blue, dark blue, sea blue, gray-blue, yellow, rose red, light yellow, green, etc. the surface of the film layer is flat, smooth, continuous, uniform, dense, and firmly bonded with the base metal.at the same time, it is basically applicable to TC4, Tc1, TC2, TA1, TA2, and other titanium alloys, and can be used for process decoration and marking.
With the improvement of people's living standards, the demand for color titanium is becoming more and more urgent. Therefore, in the color of titanium products, it is also necessary to use anodic oxidation coloring technology.
