Overview of corrosion resistance of nickel, titanium, and tantalum
Classification | Name | Corrosion Resistance | P.S |
Simple metal | Nickel | It is especially resistant to alkali corrosion and is relatively stable in high temperature or molten alkali, so it is mainly used in the alkali industry. At room temperature, nickel is extremely stable in seawater, salt solutions, and organic media (such as fatty acids, phenols, alcohols, etc.). | It is not resistant to inorganic acid corrosion and is unstable in acetic acid and formic acid. |
Titanium | It is a pure metal with very good corrosion resistance. Especially in various concentrations of nitric acid, organic acid, chloride, wet chlorine, and alkali, it has strong corrosion resistance. | It is not resistant to the corrosion of pure reducing acid and hydrochloric acid. | |
Tantalum | It is a pure metal with high chemical stability. In many corrosive media, such as inorganic acids, aqua regia, organic acids, chlorides, salts, corrosive gases, etc. | It is not resistant to hydrofluoric acid, fuming sulfuric acid, free sulfur trioxide, potassium iodide, fluoride ion solution, and strong alkali corrosion at high temperatures. |
Note: in order to improve the mechanical properties of pure metals, a small number of other metals shall be added as required in the smelting process.
