Preparation method of TiB2 enhanced high-entropy alloy powder for 3D printing

A high-entropy alloy, 3D printing technology, applied in metal processing equipment, additive processing, transportation and packaging, etc., to achieve the effect of unchanged elongation, improved comprehensive mechanical properties, and improved mechanical properties

Inactive Publication Date: 2021-05-14
NANTONG JINYUAN INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems existing in the prior art, how to efficiently convert TiB 2 The powder is introduced into the FeCoNiCr high-entropy alloy powder while maintaining the fluidity of the powder without affecting the printing effect. The invention provides a TiB 2 Preparation method of enhanced high-entropy alloy powder for 3D printing

Method used

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  • Preparation method of TiB2 enhanced high-entropy alloy powder for 3D printing
  • Preparation method of TiB2 enhanced high-entropy alloy powder for 3D printing

Examples

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preparation example Construction

[0025] The invention discloses a TiB 2 The method for preparing high-entropy alloy powders for enhanced 3D printing, the innovations of which are as follows: figure 1 , 2 Shown: Include the following steps:

[0026] (1) Classify the FeCoNiCr high-entropy alloy with a size of 15-53 μm through air flow, and control the weight ratio of the powder below 15 μm within 1% for later use;

[0027] (2) Nano-TiB 2 The first part of the sieved high-entropy alloy powder is placed in a mixer in a mass fraction of 3:97 and fully mixed;

[0028] (3) Place the mixed metal powder on a ball mill for ball milling, and introduce ultrasonic waves around the ball mill, and mechanically alloy the nano-TiB 2 Embedded in high-entropy alloy powder;

[0029] (4) Put the ball-milled high-entropy alloy powder into a drying oven to dry;

[0030] (5) The dried ball-milled high-entropy alloy powder is classified by airflow to ensure that the weight ratio of the powder below 15 μm is controlled within 1%...

Embodiment 1

[0041] The preparation method and parameter settings of this embodiment are specifically:

[0042] (1) Classify the FeCoNiCr high-entropy alloy with a size of 15-53 μm through air flow, and control the weight ratio of the powder below 15 μm within 1% for later use;

[0043](2) Nano-TiB 2 The first part of the sieved high-entropy alloy powder is placed in a mixer in a mass fraction of 3:97 and fully mixed;

[0044] (3) Place the mixed metal powder on a ball mill for ball milling, and introduce ultrasonic waves around the ball mill, and mechanically alloy the nano-TiB 2 Embedded in high-entropy alloy powder;

[0045] (4) Put the ball-milled high-entropy alloy powder into a drying oven to dry;

[0046] (5) The dried ball-milled high-entropy alloy powder is classified by airflow to ensure that the weight ratio of the powder below 15 μm is controlled within 1%.

[0047] The weight fractions of the elements of the FeCoNiCr high-entropy alloy are Fe: 20%, Mn: 35%, Cr: 10%, Co: 3%...

Embodiment 2

[0053] The preparation method and parameter settings of this embodiment are specifically:

[0054] (1) Classify the FeCoNiCr high-entropy alloy with a size of 15-53 μm through air flow, and control the weight ratio of the powder below 15 μm within 1% for later use;

[0055] (2) Nano-TiB 2 The first part of the sieved high-entropy alloy powder is placed in a mixer in a mass fraction of 3:97 and fully mixed;

[0056] (3) Place the mixed metal powder on a ball mill for ball milling, and introduce ultrasonic waves around the ball mill, and mechanically alloy the nano-TiB 2 Embedded in high-entropy alloy powder;

[0057] (4) Put the ball-milled high-entropy alloy powder into a drying oven to dry;

[0058] (5) The dried ball-milled high-entropy alloy powder is classified by airflow to ensure that the weight ratio of the powder below 15 μm is controlled within 1%.

[0059] The weight fractions of the elements of the FeCoNiCr high-entropy alloy are Fe: 20%, Mn: 35%, Cr: 10%, Co: 3...

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Abstract

The invention provides a preparation method of TiB2 enhanced high-entropy alloy powder for 3D printing, which is characterized by comprising the following steps: (1) performing airflow classification on FeCoNiCr high-entropy alloy with the specification of 15-53mu m, and controlling the weight ratio of powder with the specification of less than 15mu m in the powder within 1% for later use; (2) putting nano TiB2 and the screened high-entropy alloy powder of the first part into a mixer according to a mass fraction ratio of 3: 97, and fully and uniformly mixing the nano TiB2 and the screened high-entropy alloy powder of the first part; (3) placing the mixed metal powder on a ball mill to be subjected to ball milling, introducing ultrasonic waves into the periphery of the ball mill, and embedding the nano TiB2 into the high-entropy alloy powder in a mechanical alloying mode; (4) putting the ball-milled high-entropy alloy powder into a drying box to be dried; and (5) performing airflow classification on the dried ball-milled high-entropy alloy powder, and it is guaranteed that the weight ratio of powder with the specification of less than 15mu m is controlled within 1%.

Description

technical field [0001] The invention relates to the technical field of special materials for 3D printing, in particular to a TiB 2 Preparation methods of high-entropy alloy powders for enhanced 3D printing. Background technique [0002] As an emerging frontier technology in the field of metallic materials, high-entropy alloys (HEA) have high entropy of mixed configurations which tend to be based on simple lower surface face-centered cubic (FCC), body-centered cubic (BCC) or matrix centered cubic to stabilize the solid solution. Hexagonal close-packed (HCP) structure. Usually, the definition of HEA is based on composition or entropy. For composition-based definitions, HEA consists of five or more major elements, each in a concentration between 5 and 35 atomic percent (at%). The constituent elements of HEAs can be selected from transition metals, alkaline earth metals, alkaline metals, metalloids and nonmetals, among which cobalt, chromium, copper, iron, manganese, nickel,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04B22F1/00C22C30/00C22C32/00B33Y70/10
CPCB22F9/04C22C30/00C22C32/0073B33Y70/10B22F2009/043B22F2009/041B22F1/052
Inventor 梅述文胡玉姜勇梁廷禹唐婉秋张臣
Owner NANTONG JINYUAN INTELLIGENT TECH CO LTD
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