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A kind of alcrn/alcrsin superhard nano-composite multilayer coating and its preparation method and application

A nano-composite, multi-layer coating technology, applied in the coating, metal material coating process, vacuum evaporation plating, etc., to achieve the effects of dense film structure, excellent residual stress, huge market potential and use value

Active Publication Date: 2020-07-21
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The method of preparing AlCrN / AlCrSiN nanocomposite multilayer tool coating by pulse arc ion plating technology has not been reported yet.

Method used

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  • A kind of alcrn/alcrsin superhard nano-composite multilayer coating and its preparation method and application
  • A kind of alcrn/alcrsin superhard nano-composite multilayer coating and its preparation method and application
  • A kind of alcrn/alcrsin superhard nano-composite multilayer coating and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0037]A kind of AlCrN / AlCrSiN superhard nano-composite multi-layer coating, this coating comprises substrate substrate, AlCrN transition layer and AlCrN / AlCrSiN nano-composite multi-layer function layer from bottom to top; Said transition layer is attached to WC-Co hard AlCrN coating with a thickness of 0.2 μm on a high-quality alloy or high-speed steel tool substrate; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is attached to the transition layer with a thickness of 4 μm. The composition of the AlCrN / AlCrSiN nanocomposite multilayer functional layer is Al: 29at.%, Cr: 17at.%, Si: 2at.%, N: 52at.%; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is modulated by The AlCrN intermediate layer and the AlCrSiN intermediate layer with a ratio of 1:1.5 are alternately deposited, and the modulation period is 30-35nm.

[0038] The preparation method of the above-mentioned AlCrN / AlCrSiN superhard nano-composite multi-layer coating adopts the pulse arc ion pla...

Embodiment 2

[0046] A kind of AlCrN / AlCrSiN superhard nano-composite multi-layer coating, this coating comprises substrate substrate, AlCrN transition layer and AlCrN / AlCrSiN nano-composite multi-layer function layer from bottom to top; Said transition layer is attached to WC-Co hard AlCrN coating with a thickness of 0.3 μm on a high-quality alloy or high-speed steel tool substrate; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is attached to the transition layer with a thickness of 3 μm. The composition of the AlCrN / AlCrSiN nanocomposite multilayer functional layer is Al: 25at.%, Cr: 18at.%, Si: 3at.%, N: 54at.%; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is modulated by The AlCrN intermediate layer and the AlCrSiN intermediate layer with a ratio of 1:1.5 are alternately deposited, and the modulation period is 27-32nm.

[0047] The preparation method of the above-mentioned AlCrN / AlCrSiN superhard nano-composite multi-layer coating adopts the pulse arc ion pl...

Embodiment 3

[0055] A kind of AlCrN / AlCrSiN superhard nano-composite multi-layer coating, this coating comprises substrate substrate, AlCrN transition layer and AlCrN / AlCrSiN nano-composite multi-layer function layer from bottom to top; Said transition layer is attached to WC-Co hard AlCrN coating with a thickness of 0.4 μm on a high-quality alloy or high-speed steel tool substrate; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is attached to the transition layer with a thickness of 2 μm. The composition of the AlCrN / AlCrSiN nanocomposite multilayer functional layer is Al: 23at.%, Cr: 14at.%, Si: 2at.%, N: 56at.%; the AlCrN / AlCrSiN nanocomposite multilayer functional layer is modulated by The AlCrN intermediate layer and the AlCrSiN intermediate layer with a ratio of 1:1.5 are alternately deposited, and the modulation period is 22-28nm.

[0056] The preparation method of the above-mentioned AlCrN / AlCrSiN superhard nano-composite multi-layer coating adopts the pulse arc ion pl...

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Abstract

The invention belongs to the technical field of preparation of coatings for cutting tools and discloses an AlCrN / AlCrSiN superhard nano-composite laminated coating and a preparation method and application of the AlCrN / AlCrSiN superhard nano-composite laminated coating. The AlCrN / AlCrSiN superhard nano-composite laminated coating is prepared by using the pulsed arc ion plating technique, an AlCrN layer at the thickness of 0.2-1 mum is deposited first to serve as a transition layer between the coating and a substrate in the preparation process and provides support for the nanometer laminated structure; the nanometer laminated structure is implemented through the rotation of a workpiece rotating stand; an AlCrN interlayer and an AlCrSiN interlayer are alternatively deposited to form a AlCrN / AlCrSiN nano-composite laminated functional layer, and the ingredients are as follows: 18-32 at.% of Al, 10-25 at.% of Cr, 1-10 at.% of Si, and 45-57 at.% of N. The nanometer laminated structure thinsthe size of a columnar crystal and is excellent in high hardness, high toughness, high wear resistance and high temperature oxidation resistance, and the coating is a coating for the cutting tool having an excellent application prospect.

Description

technical field [0001] The invention belongs to the technical field of tool coating preparation, and in particular relates to an AlCrN / AlCrSiN superhard nano-composite multilayer coating and a preparation method and application thereof. Background technique [0002] The development of modern processing and manufacturing industry is inseparable from cutting tools, which put forward higher and more stringent requirements for cutting tools. Green environmental protection, high speed, high precision and intelligence have become the pursuit goals of cutting processing; materials such as high strength, high hardness, high toughness and difficult cutting emerge in an endless stream, which poses great challenges to tools, and carbide tool coatings are in the new situation. Under the cutting processing has excellent performance. [0003] AlCrN coating has excellent heat resistance and high temperature resistance due to the formation of stable alloy phase at high temperature, and has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/02C23C14/06C23C14/32
CPCC23C14/0021C23C14/022C23C14/0641C23C14/325
Inventor 王启民钟星吴正涛许雨翔伍一铭
Owner GUANGDONG UNIV OF TECH
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