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A re-b-m amorphous alloy with high hardness and its preparation method

A technology of amorphous alloy and high hardness, which is applied in the field of Re-B-M amorphous alloy, Re-B-M amorphous alloy and its preparation. Effects of phase region, high crystallization start temperature, and high hardness

Inactive Publication Date: 2016-05-18
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the limitation of alloy composition design, the existing refractory metal-based amorphous alloys generally have low amorphous formation ability.
Through rapid solidification technology, these alloy components can only be prepared into low-dimensional amorphous alloy materials such as powders, filaments or strips.
At the same time, since the existing refractory metal-based amorphous alloys have not found obvious glass transition behavior and supercooled liquid phase region, it is difficult for these low-dimensional amorphous alloys to be bulked by thermoplastic forming in the supercooled liquid phase region. Body forming processing, which largely limits the scope of application of this type of material

Method used

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  • A re-b-m amorphous alloy with high hardness and its preparation method
  • A re-b-m amorphous alloy with high hardness and its preparation method
  • A re-b-m amorphous alloy with high hardness and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: making Re 45 B 35 co 20 Amorphous alloy

[0029] High hardness Re 45 B 35 co 20 The preparation method of amorphous alloy comprises the steps:

[0030] 1) Ingredients: Weigh 16.866g of Re, 0.762g of B and 2.372g of Co in proportion to form and prepare Re 45 B 35 co 20 The raw material of amorphous alloy is 20g, the purity of metal Re is greater than or equal to 99.5%; the purity of metalloid B is greater than or equal to 99.5%; the purity of Co is greater than or equal to 99.8%;

[0031] 2) Melting master alloy: Put the raw materials into a vacuum induction melting furnace to melt to make a master alloy. Melting conditions: the vacuum degree in the vacuum induction melting furnace is 5.0×10 －3 Pa, melting time 5min;

[0032] 3) Put the master alloy into the induction furnace of the single-roll quick quenching device, adjust the induction current to 26A, and spray the melt onto the copper roller with a rotational speed of about 32m / s after the mas...

Embodiment 2

[0034] Embodiment 2: making Re 40 B 35 co 25 Amorphous alloy

[0035] High hardness Re 40 B35 co 25 The preparation method of amorphous alloy comprises the steps:

[0036] 1) Ingredients: Weigh 16.018g of Re, 0.814g of B and 3.168g of Co in proportion to form and prepare Re 40 B 35 co 25 The raw material of amorphous alloy is 20g, the purity of metal Re is greater than or equal to 99.5%; the purity of metalloid B is greater than or equal to 99.5%; the purity of Co is greater than or equal to 99.8%;

[0037] 2) Melting master alloy: Put the raw materials into a vacuum induction melting furnace to melt to make a master alloy. Melting conditions: the vacuum degree in the vacuum induction melting furnace is 5.0×10 －3 Pa, melting time 5min;

[0038] 3) Put the master alloy into the induction furnace of the single-roll quick quenching device, adjust the induction current to 26A, and spray the melt onto the copper roller with a rotational speed of about 32m / s after the maste...

Embodiment 3

[0040] Embodiment 3: making Re 35 B 35 co 30 Amorphous alloy

[0041] High hardness Re 35 B 35 co 30 The preparation method of amorphous alloy comprises the steps:

[0042] 1) Ingredients: Weigh 15.045g of Re, 0.874g of B and 4.081g of Co in proportion to form and prepare Re 35 B 35 co 30 The raw material of amorphous alloy is 20g; the purity of metal Re is greater than or equal to 99.5%; the purity of metalloid B is greater than or equal to 99.5%; the purity of Co is greater than or equal to 99.8%;

[0043] 2) Melting master alloy: Put the raw materials into a vacuum induction melting furnace to melt to make a master alloy. Melting conditions: the vacuum degree in the vacuum induction melting furnace is 5.0×10 －3 Pa, melting time 5min;

[0044] 3) Put the master alloy into the induction furnace of the single-roll quick quenching device, adjust the induction current to 25A, and spray the melt onto the copper roller with a rotational speed of about 32m / s after the mas...

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Abstract

The invention relates to Re-B-M amorphous alloy with high hardness. The amorphous alloy comprises the following components shown in the formula: Re100-a-b[1-b2]BaCob1Feb2, wherein a, b1 and b2 represent atom numbers; a+b1+b2 is smaller than 100; when Re-B-Co is amorphous alloy, a is 25-40, b1 is 20-50, and b2 is 0; when Re-B-Fe is amorphous alloy, a is 25-40, b1 is 0, and b2 is 20-40; and when Re-B-Co-Fe is amorphous alloy, a is 25-40, b1 is 1-50 and b2 is 1-40. The Re-B-M amorphous alloy disclosed by the invention has the characteristics of high crystallization beginning temperature, wide supercooled liquid region and high hardness, and can be applied to the fields of room temperature and high temperature engineering as a wear-resistant material, a cutting tool material, a second-phase reinforcing material and the like.

Description

technical field [0001] The invention belongs to the technical field of rhenium-based (Re) amorphous alloys, and specifically relates to a Re-B-M amorphous alloy with high hardness and a preparation method thereof, that is, adding transition group metal elements M (Co and / or or Fe) to obtain Re-B-M amorphous alloys with high hardness. Background technique [0002] Amorphous alloys prepared by rapid solidification technology have unique mechanical properties, magnetic properties, corrosion resistance and electrical properties because they do not have a long-range atomic order structure. Therefore, the study of amorphous alloys has become an important field of material research. Compared with other amorphous alloys, refractory metal-based amorphous alloys have the characteristics of high melting point, high crystallization temperature, high modulus and high hardness. Therefore, this type of alloy can be used as wear-resistant materials, cutting tool materials and second phase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/00C22C1/03B22D11/06
Inventor 王剑锋关绍康周崇朱世杰王利国刘培玉
Owner ZHENGZHOU UNIV