The advantages of electroless nickel plating include good corrosion resistance as well as increased hardness and wear resistance. Customers can choose from a wide range of Bigely nickel plating processes (high, medium and low phosphorus) depending on their processing needs. So, what is the effect of different phosphorus content on the plating? The effects are as follows:
1. Higher phosphorus content (usually >7%)
①Improve corrosion resistance: electroless nickel plating layer with high phosphorus content has better resistance to many corrosive media.
②Improve oxidation resistance: High-phosphorus electroless nickel plating layer performs better under high temperature or oxidizing environment.
③ Better magnetism: Higher phosphorus content can make the coating non-magnetic or low magnetic.
④ Reduction of hardness: the hardness of the plated layer decreases slightly with the increase of phosphorus content.
2. Low phosphorus content (usually less than 7%)
① Higher hardness: Electroless nickel plating with lower phosphorus content has higher hardness, which is important for improving wear performance.
②Increase magnetism: Low-phosphorus electroless nickel may have some magnetic properties.
③ Decreased corrosion resistance: Compared with the high-phosphorus electroless nickel plating process, the ability of the coating to resist certain corrosive media may be reduced.
The choice of phosphorus content for a electroless nickel plating process should be application-specific due to the different performance requirements of different applications. For example, if the plating needs to work in an environment with highly corrosive media, then the Bigely high phosphorus electroless nickel plating process may be a better choice. On the contrary, if higher hardness and abrasive properties are required, a low phosphorus electroless nickel plating process may be more suitable.
If you don't know how to choose the right electroless nickel plating process, please feel free to contact us.
