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(Ti, Al, Si)N-Mo(S,N)2-Ag/TiAlN nano multi-layer coating

A nano-multilayer, coating technology, applied in the direction of coating, metal material coating process, layered products, etc., can solve the problem of single lubricating component, achieve low friction coefficient, good lubricating effect, excellent anti-wear performance Effect

Inactive Publication Date: 2014-05-07
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing high-hardness nitride antifriction coating has a simple composition and a single lubricating component, which cannot make the cutting tool coating always maintain excellent wear resistance during operation
[0005] Cutting tool coatings will undergo drastic temperature changes during operation, especially during intermittent operations, and a single lubricating component in the coating cannot always have a good lubricating effect in a wide temperature range

Method used

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  • (Ti, Al, Si)N-Mo(S,N)2-Ag/TiAlN nano multi-layer coating
  • (Ti, Al, Si)N-Mo(S,N)2-Ag/TiAlN nano multi-layer coating

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Example 1. Preparation of (Ti, Al, Si)N-Mo(S, N) on high-speed steel W6Mo5Cr4V2 2 -Ag / TiAlN nanometer multi-layer coating, its specific preparation process is as follows:

[0013] 1) Pretreatment: Cut the W6Mo5Cr4V2 high-speed steel plate into a sample of 20mm×20mm×3mm, drill a through hole with a diameter of 3mm in the middle and upper part of the sample, and rough grind, finely grind and polish the sample to make the surface rough The degree is less than 0.5 microns;

[0014] 2) Double-target co-sputtering to prepare monolayer (Ti,Al,Si)N-Mo(S,N) 2 -The process parameters and technical conditions of Ag coating are as follows: N 2 The partial pressure is 0.5Pa, the Ar partial pressure is 0.25Pa, the temperature is 150°C, the time is 200min, the bias voltage is -100V, and the duty cycle is 30%. The TiAlSiAg target is prepared by powder metallurgy. Its composition: Ti: 32at%, Al: 30at %, Si: 20at%, Ag 18at%, target size: diameter 100mm, thickness: 10mm, sputtering ...

Embodiment 2

[0018] Example 2: Preparation of (Ti, Al, Si)N-Mo(S, N) on high-speed steel W6Mo5Cr4V2 2 -Ag / TiAlN nanometer multi-layer coating, its specific preparation process is as follows:

[0019] 1) Pretreatment: Cut the W6Mo5Cr4V2 high-speed steel plate into a sample of 20mm×20mm×3mm, drill a through hole with a diameter of 3mm in the middle and upper part of the sample, and rough grind, finely grind and polish the sample to make the surface rough The degree is less than 0.5 microns;

[0020] 2) Double-target co-sputtering to prepare monolayer (Ti,Al,Si)N-Mo(S,N) 2 -The process parameters and technical conditions of Ag coating are as follows: N 2 The partial pressure is 0.5Pa, the Ar partial pressure is 0.25Pa, the temperature is 150°C, the time is 200min, the bias voltage is -100V, and the duty cycle is 30%. The TiAlSiAg target is prepared by powder metallurgy. Its composition: Ti: 27at%, Al: 38at %, Si: 15at%, Ag 20at%, target size: diameter 100mm, thickness: 10mm, sputtering ...

Embodiment 3

[0025] Example 3: Preparation of (Ti, Al, Si)N-Mo(S, N) on high-speed steel W6Mo5Cr4V2 2 -Ag / TiAlN nanometer multi-layer coating, its specific preparation process is as follows:

[0026] 1) Pretreatment: Cut the W6Mo5Cr4V2 high-speed steel plate into a sample of 20mm×20mm×3mm, drill a through hole with a diameter of 3mm in the middle and upper part of the sample, and rough grind, finely grind and polish the sample to make the surface rough The degree is less than 0.5 microns;

[0027] 2) Double-target co-sputtering to prepare monolayer (Ti,Al,Si)N-Mo(S,N) 2 -The process parameters and technical conditions of Ag coating are as follows: N 2 The partial pressure is 0.5Pa, the Ar partial pressure is 0.25Pa, the temperature is 150°C, the time is 200min, the bias voltage is -100V, and the duty cycle is 30%. The TiAlSiAg target is prepared by powder metallurgy. Its composition: Ti: 30at%, Al: 28at %, Si: 26at%, Ag 16at%, target size: diameter 100mm, thickness: 10mm, sputtering po...

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Abstract

The invention discloses a (Ti, Al, Si)N-Mo(S,N)2-Ag / TiAlN nano multi-layer coating which is formed by alternatively overlapping (Ti, Al, Si)N-Mo(S,N)2-Ag composite coatings and TiAlN coatings, wherein the (Ti, Al, Si)N-Mo(S,N)2-Ag composite coatings range from 5 nm to 8 nm in thickness, and comprise the following components: 15-20 at% of Ti, 15-20 at% of Al, 5-10 t% of Si, 5-10 at% of Mo, 10-15 at% of Ag, 28-36 at% of N and 5-10 at% of S; the TiAlN coatings range from 15 nm to 20 nm in thickness and comprises the following components: 20-30 at% of Ti, 20-30 at% of Al and 48-50 at% of N. Within the temperature range from the room temperature to 800 DEG C, the coating is constantly kept in low friction coefficient and excellent anti-abrasion property, can be widely applied to mechanical machining industry such as cutters, and has practical significance in prompting development of the environment-friendly industry, saving energy and reducing consumption.

Description

technical field [0001] The invention relates to a (Ti,Al,Si)N-Mo(S,N) 2 -Ag / TiAlN nano multi-layer coating. Background technique [0002] my country has now become a big country of energy consumption, and friction and wear are a major cause of high energy consumption. In 2006, the country consumed as much as 950 billion yuan in friction and wear, among which lubrication is one of the most effective measures to reduce friction and wear and energy consumption. [0003] The advent of hard coating technology in the 1960s brought about a major revolution in tool materials. In the past 10 years, hard coating technology has received more and more attention and research. Among them, the two most typical types of coatings are superhard coatings based on TiAlN coatings (hardness greater than 40GPa) and diamond coatings. . At present, TiAlN coating is widely used in the machining industry due to its small internal stress, high hardness and good high temperature oxidation resistance...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B9/04C22C30/00C23C14/35C23C14/06C23C14/14
Inventor 冯长杰朱圣龙江鸢飞胡弦周雅杜楠王福会
Owner NANCHANG HANGKONG UNIVERSITY
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