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Intermediate alloy for titanium/carbon steel bimetal compounding and compounding process

An intermediate alloy and bimetal technology, applied in the field of bimetal composite materials, can solve the problems of uneven bonding strength, low bonding strength of composite material interface, low production efficiency, etc., and achieves easy promotion, wide composition range and good adaptability. Effect

Inactive Publication Date: 2020-03-31
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an intermediate alloy and composite process for titanium / carbon steel bimetallic composite, which solves the problems of low production efficiency, low bonding strength of composite material interface, and uneven bonding strength in the explosive composite method commonly used at present. and other shortcomings

Method used

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  • Intermediate alloy for titanium/carbon steel bimetal compounding and compounding process
  • Intermediate alloy for titanium/carbon steel bimetal compounding and compounding process

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Effect test

Embodiment 1

[0027] The master alloy for titanium / carbon steel bimetallic composite is composed of the following five components by atomic percentage, Ga: 20%, Cu: 20%, Zn: 20%, Mn: 20%, Fe: 20%.

[0028] The specific composite process consists of the following steps:

[0029] (1) Preparation of master alloy: take high-purity metal powder according to the percentage, put the weighed metal powder of the above components into the stainless steel vacuum ball milling tank of the planetary ball mill, the ball-to-material ratio is 15:1, and add normal Heptane was used as a process control agent, and the mass of n-heptane accounted for 10% of the total mass of the ball material. The ball milling speed was 300r / min, and the milling time was 72h.

[0030] (2) Preparation of the base metal: Mechanically polish and clean the surface of the TC4 titanium plate with a length of 50 mm, a width of 20 mm, and a thickness of 2 mm and Q235 low-carbon steel to remove oil and impurities on the surface;

[003...

Embodiment 2

[0034] The master alloy for titanium / carbon steel bimetallic composite is composed of the following five components by atomic percentage, Ga: 5%, Cu: 15%, Zn: 35%, Mn: 35%, Fe: 10%.

[0035] The specific composite process consists of the following steps:

[0036] (1) Preparation of master alloy: take high-purity metal powder according to the percentage, put the weighed metal powder of the above components into the stainless steel vacuum ball milling tank of the planetary ball mill, the ball-to-material ratio is 15:1, and add normal Heptane was used as a process control agent, and the mass of n-heptane accounted for 10% of the total mass of the ball material. The ball milling speed was 300r / min, and the milling time was 72h.

[0037] (2) Preparation of the base metal: Mechanically polish and clean the surface of the TC4 titanium plate with a length of 50 mm, a width of 20 mm, and a thickness of 2 mm and Q235 low-carbon steel to remove oil and impurities on the surface;

[0038...

Embodiment 3

[0041] The master alloy for titanium / carbon steel bimetallic composite is composed of the following five components by atomic percentage, Ga: 5%, Cu: 15%, Zn: 35%, Mn: 35%, Fe: 10%.

[0042] The specific composite process consists of the following steps:

[0043] (1) Preparation of master alloy: take high-purity metal powder according to the percentage, put the weighed metal powder of the above components into the stainless steel vacuum ball milling tank of the planetary ball mill, the ball-to-material ratio is 15:1, and add normal Heptane was used as a process control agent, and the mass of n-heptane accounted for 10% of the total mass of the ball material. The ball milling speed was 300r / min, and the milling time was 72h.

[0044] (2) Preparation of the base metal: Mechanically polish and clean the surface of the TA2 titanium plate with a length of 50 mm, a width of 20 mm, and a thickness of 2 mm and 45 steel to remove oil and impurities on the surface;

[0045](3) Brazing:...

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Abstract

The invention discloses an intermediate alloy for titanium / carbon steel bimetal compounding and a compounding process. A composite material is formed by compounding titanium, carbon steel and the intermediate alloy; wherein the intermediate alloy is a high-entropy alloy, the high-entropy alloy is composed of the following five metal elements in atomic percent: 5-35% of Ga, 5-35% of Cu, 5-35% of Zn, 5-35% of Mn and 5-35% of Fe, and the high-entropy alloy is prepared by adopting a mechanical alloying method. The preparation method of the intermediate alloy is simple, the compounding temperatureis low, the adaptability is wide, and the metallurgical bonding strength of the obtained titanium / carbon steel bimetal composite material is high.

Description

technical field [0001] The invention belongs to the technical field of bimetallic composite materials, and relates to a high-entropy alloy material used in a titanium / carbon steel bimetallic composite process and intermediate. Background technique [0002] The titanium / carbon steel composite plate with titanium or titanium alloy as the cladding material and carbon steel as the base material not only has the corrosion resistance of the cladding material, but also has the high strength of the base material, reducing the use of precious metal titanium, and at the same time The production cost of materials is reduced, and there are application requirements in marine engineering materials and chemical industries. In marine engineering, titanium / carbon steel composite plates can well meet the corrosion resistance requirements in marine environments. The Japanese sea-crossing bridge applies titanium / carbon steel composite plates to the splash area of ​​the bridge column. Titanium / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B37/02B32B37/06B32B37/08B32B37/14B32B38/00B32B38/16B32B38/18C22C30/02C22C30/06
CPCB32B15/01B32B37/02B32B37/06B32B37/08B32B37/14C22C30/02C22C30/06B32B38/0012B32B38/162B32B38/1808B32B38/0036B32B2038/0016B32B2311/12B32B2311/20B32B2311/30
Inventor 师红旗简东慧汤葱葱丁毅沈晓冬
Owner NANJING TECH UNIV
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