Anti-corrosion protective coating on metal substrate surface and its preparation method and application
A technology of protective coating and metal substrate, which is applied in the direction of metal material coating process, coating, vacuum evaporation plating, etc., and can solve the problems of rough surface, increased manufacturing cost, and large coating thickness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0035] An aspect of the embodiments of the present invention also provides the preparation method of the aforementioned anti-wear protective coating, which includes:
[0036] S1. Pretreating the surface of the metal substrate;
[0037] S2. Using DC magnetron sputtering technology to sequentially deposit Ti transition layer and TiC on the surface of the metal substrate x Gradient layer, and then using linear ion source technology in TiC x Depositing the first DLC layer on the surface of the gradient layer;
[0038] S3. Using DC magnetron sputtering technology to deposit TiC on the surface of the first DLC layer x / Ti / TiC x sandwich layer, and a second DLC layer was deposited using linear ion source technology, and the TiC x / Ti / TiC x The sandwich layer and the second DLC layer are stacked alternately to form TiC x / Ti / TiC x / DLC alternate layers;
[0039] S4. Using linear ion source technology on TiC x / Ti / TiC x A third DLC layer is deposited on the alternating layers...
Embodiment 1
[0054] In this embodiment, the base material is AISI 316L austenitic stainless steel, and the structure of the coating is as follows figure 1 As shown, the total thickness of the coating is 1.6 μm.
[0055] The coating preparation steps on the above-mentioned 316L surface are as follows:
[0056] Step 1: Use 120#~3000# SiC metallographic sandpaper to polish the 316L substrate in sequence, and then use Al with a particle size of 0.2~0.3μm 2 o 3 The abrasive paste is used for metallographic polishing of the stainless steel substrate for 15 minutes;
[0057] Step 2: Place the polished 316L stainless steel substrate in acetone, ethanol and deionized water in sequence for ultrasonic cleaning for 10 minutes, and then dry it with cold air for later use;
[0058] Step 3: Place the 316L stainless steel substrate in the thin film deposition vacuum chamber, and use mechanical pump and turbomolecular pump to evacuate to 2.0×10 -5 After Torr, turn on the heater and set the heating temp...
Embodiment 2
[0066] In this example, the base material is UNS S32750 (SAF 2507) super duplex stainless steel, and the coating is TiC x / Ti / TiC x Layers and DLC layers are periodically stacked alternately in a multilayer structure, in which the surface of S32750 is a Ti transition layer, and the total thickness of the coating is 2.3 μm.
[0067] The coating preparation steps on the surface of the above S32750 are as follows:
[0068] Step 1: Use 120#~3000# SiC metallographic sandpaper to polish the S32750 substrate in turn, and then use Al with a particle size of 0.2~0.3μm 2 o 3 The abrasive paste is used for metallographic polishing of the substrate for 12 minutes;
[0069] Step 2: Place the polished S32750 substrate in acetone, ethanol and deionized water in sequence for ultrasonic cleaning for 10 minutes, and then dry it with cold air for later use;
[0070] Step 3: Place the S32750 substrate in the film deposition vacuum chamber, and successively use a mechanical pump and a turbomol...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More