Titanium does not have a professional and accurate definition. Some people refer to metallic titanium and titanium alloy as titanium for short, but this concept is not accurate. There is a kind of sodium nitride crystal, especially the vacuum coating titanium nitride (also called PVD process) with golden metallic luster. In most cases, titanium gold refers to titanium nitride coating. Most companies need to deliberately confuse the concept of titanium or titanium alloy with titanium nitride in the name of titanium gold for marketing purposes, but titanium nitride and metallic titanium are completely two concepts, just like titanium dioxide used as a whitening agent, not at all metal.
【About Titanium Alloy】
Titanium alloy refers to alloy materials composed of other strengthening elements based on titanium, such as aluminum, nickel, chromium, copper, etc., in order to obtain higher strength, corrosion resistance, and high temperature resistance. At present, titanium alloy is the most widely used titanium metal material, and it is widely used in aviation materials, petroleum exploration, food, sports, and medical fields.