How much does the corrosion resistance of titanium-plated stainless steel improve compared to that of non-titanium-plated stainless steel?
Publish Time: 2024-08-02
The titanium-plating process can significantly improve the corrosion resistance of stainless steel, but the specific degree of improvement is affected by many factors.
First, titanium-plating forms a protective film on the surface of stainless steel. Although the surface of stainless steel without titanium-plating has a certain degree of corrosion resistance, it will gradually be corroded in some harsh environments, such as when there are corrosive media such as acids, alkalis, and salts. After titanium-plating, the titanium layer can effectively prevent the contact between external corrosive substances and the stainless steel substrate. For example, in a humid environment containing chloride ions, stainless steel without titanium-plating may suffer from pitting corrosion, while stainless steel after titanium-plating is blocked by the titanium layer, and chloride ions are difficult to directly contact the stainless steel surface, thereby greatly reducing the possibility of corrosion.
Secondly, the titanium-plating layer itself has good chemical stability. It can maintain its structural integrity in many cases, unlike the surface of stainless steel without titanium-plating, which is prone to oxidation reactions. Relevant experimental data show that the corrosion resistance time of Titanium plating stainless steel is often several times or even dozens of times that of non-Titanium plating stainless steel. In the test of simulating highly corrosive environment such as acid rain, non-Titanium plating stainless steel may have surface rust and other conditions in a relatively short time, while Titanium plating stainless steel can maintain good appearance and performance for a long time.
However, the degree of improvement in the corrosion resistance of Titanium plating stainless steel is also closely related to the quality of the Titanium plating process. If the titanium layer has defects such as pores and uneven thickness, the effect of improving its corrosion resistance will be greatly reduced. Therefore, in the Titanium plating process, process parameters such as deposition temperature and gas flow rate should be strictly controlled to ensure the quality of the titanium layer. At the same time, different Titanium plating methods will also affect the degree of improvement in corrosion resistance. Overall, Titanium plating stainless steel has significantly improved its corrosion resistance compared to non-Titanium plating stainless steel, but the specific improvement needs to be comprehensively considered. Multiple factors should be considered and accurately determined through scientific testing and evaluation.
