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Iron-based amorphous alloy powder and preparing method and application thereof

A technology of alloy powder and iron-based amorphous, which is applied in the direction of magnetic materials, electrical components, circuits, etc., can solve the problems affecting the promotion and application of iron-based amorphous alloy powder, the adverse effects of product surface morphology and performance, and the ability to form amorphous Poor problems, high boron content, excellent fluidity and filling performance, less unmelted particles

Active Publication Date: 2017-12-29
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the general iron-based amorphous alloys have poor ductility and toughness, such as the SAM2X5 alloy in the United States. The powder prepared by this iron-based amorphous alloy has disadvantages such as low sphericity, poor fluidity, and poor amorphous formation ability, which lead to 3D During the printing and thermal spraying process, problems such as powder agglomeration and nozzle clogging are prone to occur, which will adversely affect the surface morphology and performance of the prepared product, thus affecting the promotion of iron-based amorphous alloy powder in the field of 3D printing and thermal spraying application

Method used

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  • Iron-based amorphous alloy powder and preparing method and application thereof
  • Iron-based amorphous alloy powder and preparing method and application thereof
  • Iron-based amorphous alloy powder and preparing method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0032] Prepare iron-based amorphous alloy powder, the method is as follows:

[0033] 1) The following elements and weight percentages are used to calculate and prepare materials: Cr 18%, Mo 14%, W 5%, Mn 2%, B1.5%, Si 2%, C 1%, Ce 1%, Fe surplus. The raw materials used are: pure iron, FeCr alloy, FeMo alloy, FeW alloy, electrolytic Mn, FeB alloy, Si, FeCrC alloy, Ce;

[0034] 2) Vacuum induction furnace is used for melting, pure iron, FeCr alloy, FeMo alloy, FeW alloy, FeCrC alloy, electrolytic Mn are put into the crucible in sequence, Si and FeB alloy are put into the feeding device, vacuumed to ≤10Pa, heated and refined 5 minutes, then add the Si and FeB alloys in the feeding device, heat, secondary refining for 5 minutes, and cast to obtain the master alloy for gas atomization;

[0035] 3) Use ultrasonic gas atomization equipment to prepare iron-based amorphous alloy powder: use a wire brush to remove impurities such as oxide skin on the surface of the master alloy for gas...

Embodiment 2

[0042] Prepare iron-based amorphous alloy powder, the method is as follows:

[0043] 1) The following elements and weight percentages are used to calculate and prepare materials: Cr 18%, Mo 12%, W 4%, Mn 2%, B1%, Si 1.5%, C 1%, Ce 1%, Y 1%, Fe surplus. The raw materials used are: pure iron, FeCr alloy, FeMo alloy, FeW alloy, electrolytic Mn, FeB alloy, Si, FeCrC alloy, Ce, Y;

[0044] 2) Vacuum induction furnace is used for melting, iron powder, FeCr alloy, FeMo alloy, FeW alloy, FeCrC alloy, and electrolytic Mn are placed in the crucible in sequence, and Si, FeB alloy, and Y are placed in the feeding device, vacuumed to ≤10Pa, and heated. Refining for 5 minutes, then adding Si, FeB alloy, and Y in the feeding device, heating, secondary refining for 5 minutes, and casting to obtain a master alloy for gas atomization;

[0045] 3) Use ultrasonic gas atomization equipment to prepare iron-based amorphous alloy powder: use a sand blower to remove impurities such as oxide skin on t...

Embodiment 3

[0049] Prepare iron-based amorphous alloy powder, the method is as follows:

[0050] 1) Calculate and prepare materials using the following elements and weight percentages: Fe 65%, Cr 15%, Mo 10%, W 2%, Mn1%, B 2%, Si 2%, C 1%, Ce 1%, Y 1% The raw materials used are: pure iron, FeCr alloy, FeMo alloy, FeW alloy, electrolytic Mn, FeB alloy, Si, FeCrC alloy, Ce, Y;

[0051] 2) Vacuum induction furnace is used for melting, iron powder, FeCr alloy, FeMo alloy, FeW alloy, FeCrC alloy, and electrolytic Mn are placed in the crucible in sequence, and Si, FeB alloy, and Y are placed in the feeding device, vacuumed to ≤10Pa, and heated. Refining for 5 minutes, then adding Si, FeB alloy, and Y in the feeding device, heating, secondary refining for 5 minutes, and casting to obtain a master alloy for gas atomization;

[0052] 3) Use ultrasonic gas atomization equipment to prepare iron-based amorphous alloy powder: use a sand blower to remove impurities such as oxide skin on the surface of...

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Abstract

The invention relates to iron-based amorphous alloy powder and a preparing method thereof. The alloy powder is prepared from, by weight, 40-65% of Fe, 15-25% of Cr, 10-20% of Mo, 2-8% of W, 1-5% of Mn, 1-4% of B, 0-4% of Si, 0-3% of C, 0-2% of Ce, and 0-2% of Y, wherein at least two elements of Si, C, Ce and Y should exist simultaneously, and the total mass percentage is larger than or equal to 1%. The mobility and the filling performance of the iron-based amorphous alloy powder are excellent, the content of an amorphous phase is larger than or equal to 50%, the powder serves a thermal spraying raw material to prepare a coating which is compact and uniform in structure, low in porosity, few in unmelted particles, low in oxygen content, high in amorphous-phase content, free of magnetism, high in substrate-bonding strength, high in Vickers hardness, resistant to corrosion and excellent in friction resistance, and thus the iron-based amorphous alloy powder has multiple purposes.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to an iron-based amorphous alloy powder and its preparation method and application. Background technique [0002] Amorphous alloy is a new type of metal material with no grain boundaries, no defects, and long-range disordered atomic structure. It has great application prospects as a high corrosion-resistant coating in military, marine, petrochemical and other fields. Among many bulk amorphous alloy systems, iron-based amorphous alloys have attracted much attention since their development. This is mainly because in addition to the characteristics of general amorphous alloys, iron-based amorphous alloys also have the advantages of high strength, high hardness, excellent wear resistance and corrosion resistance, as well as wide sources and low cost. 3D printing workpieces and thermal spray coatings prepared using iron-based amorphous alloy powders as raw materials ...

Claims

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Application Information

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IPC IPC(8): H01F1/153C22C45/02B22F1/00B22F9/08
CPCB22F1/0003B22F9/082C22C45/02H01F1/15325H01F1/1535
Inventor 徐红艳高新华岳智君张海燕张聪
Owner CHINA SHIP DEV & DESIGN CENT
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