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A kind of iron-nickel alloy-low carbon steel composite material and preparation method thereof

An iron-nickel alloy and composite material technology, applied in the field of metal composite materials, can solve the problems of not too thick coating, particle agglomeration, difficult to control, etc., and achieve the effect of reducing diffusion resistance, increasing diffusion speed, and compact surface structure

Inactive Publication Date: 2018-09-04
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the nickel content in the iron-nickel alloy material is 30%-90%, a large amount of metal nickel must be consumed, which is expensive, which seriously restricts its wide use
And there are also deficiencies in the preparation of iron-nickel alloy materials. For example, the preparation of iron-nickel alloy powder is too affected by many factors in the pulverization process, which is difficult to control, and the prepared alloy particles are mostly spherical, or the particles are agglomerated. The phenomenon is more serious, and it will form a chain structure to reduce the saturation magnetization. When the iron-nickel alloy is prepared by electroplating, it is limited by the alloy composition range, so that the coating cannot be too thick, and the quality of the coating cannot be guaranteed.
There is no iron-nickel alloy-low carbon steel composite material and preparation method thereof

Method used

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  • A kind of iron-nickel alloy-low carbon steel composite material and preparation method thereof
  • A kind of iron-nickel alloy-low carbon steel composite material and preparation method thereof
  • A kind of iron-nickel alloy-low carbon steel composite material and preparation method thereof

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Embodiment 1

[0025] Such as Figure 4 As shown, embodiment 1 of the present invention provides a kind of iron-nickel alloy-low carbon steel composite material, and its structure is low carbon steel matrix and the iron-nickel alloy layer that is compounded on the low carbon steel matrix, and the thickness of iron-nickel alloy layer is 50 μ m , in the iron-nickel alloy layer, from the low-carbon steel substrate to the direction of the iron-nickel alloy layer, the Ni content gradient increases, and the Fe content gradient decreases, and its preparation method is implemented according to the following steps:

[0026] Step 1. Pretreatment of low carbon steel plate

[0027] First, use a low-carbon steel plate with a length and width of 20mm and a thickness of 1mm as the substrate, select a low-carbon steel with a carbon content of 0.02%, and polish the low-carbon steel plate with 200-2000# sandpaper in turn until a mirror effect appears, and use hydrochloric acid Soak the polished low-carbon st...

Embodiment 2

[0034] Embodiment 2 of the present invention provides a kind of iron-nickel alloy-low carbon steel composite material, and its structure is low carbon steel substrate and the iron nickel alloy layer that is compounded on the low carbon steel substrate, and the thickness of iron nickel alloy layer is 85 μm, and iron nickel In the alloy layer, from the low-carbon steel substrate to the direction of the iron-nickel alloy layer, the Ni content gradient increases and the Fe content gradient decreases, and its preparation method is implemented according to the following steps:

[0035] Step 1. Pretreatment of low carbon steel plate

[0036] First, use a low-carbon steel plate with a length and width of 50mm and a thickness of 10mm as the substrate, select a low-carbon steel with a carbon content of 0.10%, and polish the low-carbon steel plate with 200-2000# sandpaper in turn until a mirror effect appears, and use hydrochloric acid Soak the polished low-carbon steel plate in a mixed ...

Embodiment 3

[0043] Embodiment 3 of the present invention provides an iron-nickel alloy-low carbon steel composite material, which has a structure of a low carbon steel substrate and an iron-nickel alloy layer compounded on the low-carbon steel substrate, the thickness of the iron-nickel alloy layer is 130 μm, and the iron-nickel alloy layer is In the alloy layer, from the low-carbon steel substrate to the direction of the iron-nickel alloy layer, the Ni content gradient increases and the Fe content gradient decreases, and its preparation method is implemented according to the following steps:

[0044] Step 1. Pretreatment of low carbon steel plate

[0045] First, use a low-carbon steel plate with a length and width of 100mm and a thickness of 20mm as the substrate, select low-carbon steel with a carbon content of 0.25%, and polish the low-carbon steel plate with 200-2000# sandpaper in turn until a mirror effect appears, and use hydrochloric acid Soak the polished low-carbon steel plate in...

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Abstract

The invention discloses a ferronickel-mild steel composite material and a preparation method thereof and relates to the field of metallic composite materials. The ferronickel-mild steel composite material comprises a mild steel matrix and a ferronickel layer compounded on the mild steel matrix. Thickness of the ferronickel layer is 50-130 microns. In the ferronickel layer, Ni content gradient is increased and Fe content gradient is reduced in the direction from the mild steel matrix to the ferronickel layer. The ferronickel and mild steel are in gradient connection and are firmly combined. The composite material has compact surface structure, controllable nickel content and good corrosion resistance, and has comprehensive properties of ferronickel and mild steel.

Description

technical field [0001] The invention relates to the field of metal composite materials, in particular to an iron-nickel alloy-low carbon steel composite material and a preparation method thereof. Background technique [0002] As a metal material with low preparation cost, simple manufacturing process, good mechanical properties and excellent processing performance, carbon steel has been widely used in various industries. However, this material has fatal weaknesses such as easy corrosion and poor wear resistance. Iron-nickel alloy material is a material prepared by adding nickel to iron (carbon steel). Because of its special magnetic properties, wave-absorbing properties, corrosion resistance and wear resistance, it has been applied in many industries. . However, since the nickel content in the iron-nickel alloy material is 30%-90%, a large amount of metal nickel must be consumed, which is expensive, which seriously restricts its wide use. And there are also deficiencies i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25D5/50
CPCC25D3/12C25D5/50
Inventor 李运刚张士宪戴志强徐鸣悦胡凯马涛李杰杨海丽
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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