Iron-based amorphous alloy powder, iron-based amorphous alloy coating and preparation method thereof

A technology of iron-based amorphous alloy and powder, which is applied in the field of preparation of this kind of amorphous alloy powder and amorphous coating, can solve the limitation of practical application, and the preparation technology of amorphous alloy coating has not obtained a wide range of research and practice. Application and other issues, to achieve excellent wear-resistant effect
CN102534435AInactive Publication Date: 2012-07-04GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
Publication Date
2012-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses iron-based amorphous alloy powder capable of forming an amorphous alloy coating, and a method for preparing an amorphous coating. The amorphous alloy powder is taken as a raw material, and a complete amorphous coating is prepared by a cold spray method. The alloy powder mainly comprises Fe, Cr and Mo, can contain one or more of Ni, Co, Mn, Si, Re, Al, Cu, Nb, Zr, Ti, C, B and other elements, wherein Fe, Cr and Mo account for over 70 atomic percent of the alloy. The component has a wide supercooled liquid region and high amorphous forming capacity, amorphous powder can be obtained by an atomization powdering technology. In the process of preparing the amorphous alloy coating by the cold spray method, an inert gas such as nitrogen, helium and the like or a mixed gas of the nitrogen and helium is taken as a powder feeding gas and a powder accelerating gas, the temperature T of the inert gas is less than 700DEG C, and the powder feeding pressure P is 1-6MPa. The coating has a great application prospect in the fields such as wear resistance, corrosion resistance, radiation protection and the like.
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Description

technical field

[0001] The invention relates to an iron-based amorphous alloy composition with strong amorphous forming ability, and a technical method for preparing the amorphous alloy powder and an amorphous coating, so as to promote the performance of the iron-based amorphous alloy in wear resistance, corrosion resistance and Radiation protection and other fields, especially the engineering and even large-scale application of shell materials such as ships and storage containers. Background technique

[0002] Amorphous alloy, also known as metallic glass, is a new metastable metal material; it has the structural characteristics of short-range order and long-range disorder, high strength, high hardness, high elastic modulus, high wear resistance and corrosion resistance, etc. Excellent performance, some amorphous alloys also have very excellent magnetic properties. As a new type of functional material and engineering material, amorphous alloy has broad application prospect...

Claims

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