Commonly used corrosion-resistant low-alloy steels, corrosion-resistant cast irons, copper alloys, aluminum alloys, stainless steels, and nickel-based alloys. Among them, titanium alloys with high purity are typical corrosion-resistant metals; however, titanium alloys with lower purity have the following drawbacks:

Corrosion pitting and stress corrosion cracking are prone to occur in oxides.

2. Prone to intergranular corrosion in many mediums; weld seams and heat-affected zones are particularly sensitive to intergranular corrosion.

3. Resources for main corrosion-resistant elements such as Ni and Cr are scarce. Meanwhile, other types of corrosion-resistant metals or alloys have poor corrosion resistance, lack good comprehensive properties, or are excessively expensive, thus their applications are greatly limited.

Titanium, as a lively metal, boasts high strength, low density, great hardness, a high melting point, and excellent corrosion resistance. High-purity titanium exhibits good plasticity, whereas titanium with impurities, typically found in non-high-purity varieties, is more brittle. In such cases, selecting effective anti-corrosion products for titanium alloy products is crucial to extend their lifespan.