A Nitrogen-doped MNCr Fabricated on the Surface of FeCRNI Alloy 2 o 4 coating method
A nitrogen doping and alloying technology, applied in metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of low content and limited anti-coking and carburizing performance, achieve control of reaction conditions, good resistance to Coking and carburizing performance, low cost effect
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Embodiment 1
[0038] (1) Manganese sulfate, chromium chloride, ammonium sulfate, ammonium citrate, sodium lauryl sulfate, sodium oxalate and formic acid are dissolved in distilled water to form a plating solution. The concentration of each component in the plating solution is: manganese sulfate 100g / L, chromium chloride 150g / L, ammonium sulfate 100g / L, ammonium citrate 25g / L, sodium lauryl sulfate 0.8g / L, sodium oxalate 20g / L, formic acid 20g / L;
[0039] (2) FeCrNi alloy is used as the substrate, and the metal coating is formed by pulse electrodeposition in the plating solution (the coating consists of metal Mn, metal Cr and a small amount of MnCr alloy). The specific electrodeposition process is as follows: use platinum electrode as anode, FeCrNi alloy as cathode, use dilute sulfuric acid and dilute sodium hydroxide solution to adjust the pH value of the plating solution to 3.5, the temperature of the plating solution is 25°C, and use electromagnetic stirring during the electroplating proce...
Embodiment 2
[0045] (1) Manganese sulfate, chromium chloride, ammonium sulfate, ammonium citrate, sodium lauryl sulfate, sodium oxalate and formic acid are dissolved in distilled water to form a plating solution. The concentration of each component in the plating solution is: manganese sulfate 100g / L, chromium chloride 150g / L, ammonium sulfate 100g / L, ammonium citrate 25g / L, sodium lauryl sulfate 0.8g / L, sodium oxalate 20g / L, formic acid 20g / L;
[0046] (2) FeCrNi alloy is used as the substrate, and the metal coating is formed by pulse electrodeposition in the plating solution (the coating consists of metal Mn, metal Cr and a small amount of MnCr alloy). The specific electrodeposition process is as follows: use platinum electrode as anode, FeCrNi alloy as cathode, use dilute sulfuric acid and dilute sodium hydroxide solution to adjust the pH value of the plating solution to 3.5, the temperature of the plating solution is 25°C, and use electromagnetic stirring during the electroplating proce...
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