High-entropy alloy fine grain in-situ additive manufacturing method

A high-entropy alloy and additive manufacturing technology, applied in the field of high-entropy alloys, can solve the problems of micro-crack structure, unevenness, shrinkage, etc., and achieve the effect of promoting phase transformation, uniform composition and excellent performance

Inactive Publication Date: 2019-12-31
FOSHAN UNIVERSITY
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to produce metallurgical defects such as poros

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-entropy alloy fine grain in-situ additive manufacturing method
  • High-entropy alloy fine grain in-situ additive manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: This embodiment discloses a high-entropy alloy fine-grained in-situ additive manufacturing method, including the following steps:

[0036] S1 conducts deposition path planning on alloy parts;

[0037] S2 preheats the substrate;

[0038] S3 uses an arc heat source to melt the high-entropy alloy cable-type welding wire, and accumulates a layer of deposition on the substrate;

[0039] S4 uses cold spray technology to spray high-entropy alloy powder on the deposition layer to form a layer of coating;

[0040] Step S5 alternately repeats steps S3 and S4 until the deposition of the high-entropy alloy component is completed.

[0041] The high-entropy alloy cable welding wire is a simple metal wire or is twisted by alloy wire.

[0042] The high-entropy alloy powder matches the high-entropy alloy cable welding wire.

[0043] The high-entropy alloy fine-grain in-situ additive manufacturing method uses arc additive technology to accumulate a deposition layer on t...

Embodiment 2

[0044] Embodiment 2: This embodiment discloses a high-entropy alloy fine-grained in-situ additive manufacturing method, including the following steps:

[0045] S1 conducts deposition path planning on alloy parts;

[0046] S2 preheats the substrate;

[0047] S3 uses an arc heat source to melt the high-entropy alloy cable-type welding wire, and accumulates a layer of deposition on the substrate;

[0048] S4 uses cold spray technology to spray high-entropy alloy powder on the deposition layer to form a layer of coating;

[0049] Step S5 alternately repeats steps S3 and S4 until the deposition of the high-entropy alloy component is completed.

[0050] The high-entropy alloy cable welding wire is a simple metal wire or is twisted by alloy wire.

[0051] Specifically, the high-entropy alloy powder matches the high-entropy alloy cable welding wire.

[0052] Specifically, the high-entropy alloy cable welding wire and high-entropy alloy powder components include at least one or more ...

Embodiment 3

[0057] Embodiment 3: The present invention also discloses an alloy part, which is made by the following manufacturing method, and the manufacturing method includes the following steps:

[0058] S1 conducts deposition path planning on alloy parts;

[0059] S2 preheats the substrate;

[0060] S3 uses an arc heat source to melt the high-entropy alloy cable-type welding wire, and accumulates a layer of deposition on the substrate;

[0061] S4 uses cold spray technology to spray high-entropy alloy powder on the deposition layer to form a layer of coating;

[0062] Step S5 alternately repeats steps S3 and S4 until the deposition of the high-entropy alloy component is completed.

[0063] The high-entropy alloy cable welding wire is a simple metal wire or is twisted by alloy wire.

[0064] Specifically, the high-entropy alloy powder matches the high-entropy alloy cable welding wire.

[0065] Specifically, the high-entropy alloy cable wire and high-entropy alloy powder components i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a high-entropy alloy fine grain in-situ additive manufacturing method. High-entropy alloy fine grain in-situ additive manufacturing is alternately achieved by combining high-entropy alloy cable type welding wire additive manufacturing and cold spraying technology strengthening. High-entropy alloy powder (mixed elementary substance powder) matched with high-entropy alloy cable type welding wires is adopted in cold spraying, powder particle high-speed flow impacts an overlay welding layer, and element burning loss brought by electric arc additives is made up; the impact effect and the fine grain strengthening effect are achieved; a cold spraying layer has the residual compressive stress effect, and the welding residual stress of the electric arc additives is releasedor reduced or eliminated; and phase change is promoted by controlling the powder composition and strong plastic deformation of powder particles, and the element and the structure of a high-entropy alloy forming component are controlled.

Description

technical field [0001] The invention relates to the field of high-entropy alloys, in particular to a method for in-situ additive manufacturing of fine-grained high-entropy alloys. Background technique [0002] The higher mixing entropy of HEAs promotes the formation of random solid solution phases with simple structures, such as face-centered cubic (FCC), body-centered cubic (BCC) or hexagonal close-packed (HCP) structures, thereby reducing the number of phases, It has the characteristics of large lattice distortion, high configuration entropy, hysteresis diffusion effect and "cocktail" effect. Therefore, it has such four effects as high strength hardness, unique wear resistance, excellent high temperature stability and low temperature toughness. Under certain conditions, it may even break through the limits of currently available materials. The preparation of high-entropy alloys is challenging due to their inherent compositional complexity and large differences in melting ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23C24/04C23C26/00C23C28/02B33Y10/00B33Y70/00
CPCB33Y10/00B33Y70/00C23C24/04C23C26/00C23C28/021
Inventor 林惠娴王凯何宽芳丁冬红卢清华
Owner FOSHAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap