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Fe-Cr-B system corrosion-resistant block amorphous alloy and preparation method thereof

An amorphous alloy, fe-cr-b technology, which is applied in the field of amorphous alloys to achieve excellent mechanical properties, corrosion resistance and improved corrosion resistance.

Active Publication Date: 2015-03-04
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

There is no independent intellectual property rights in this area in China, so the development of a new type of wear-resistant and corrosion-resistant iron-based amorphous alloy is of great significance to fill the domestic gap

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  • Fe-Cr-B system corrosion-resistant block amorphous alloy and preparation method thereof
  • Fe-Cr-B system corrosion-resistant block amorphous alloy and preparation method thereof
  • Fe-Cr-B system corrosion-resistant block amorphous alloy and preparation method thereof

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Embodiment Construction

[0038] The present invention will be specifically introduced from three aspects of composition design, alloy preparation and performance testing.

[0039] 1. Composition design

[0040] Design Fe of different compositions a Cr b Mo c B d m e R f x g Alloy, its composition characteristics are: M is one or more of Mn, Co, Ni; R is one or more of Ti, Zr, Nb, Hf, Ta, W; X is Si, P one or more. Among them, 20<a≤78, 5≤b≤45, 0≤c≤20, 6≤d≤30, 0≤e≤40, 2≤f≤15, 0≤g≤10, a+b+c+ d+e+f+g=100.

[0041] Fe and Cr are the basic components of the alloy system, and B elements are indispensable amorphous forming elements; Zr and Nb are large atoms with large negative heat of mixing with the main components, which can further improve the amorphous forming ability of the alloy, and Ti , Hf, Ta, W can be partially replaced as neighbor elements. Design composition Fe a Cr b B d R f .

[0042] As a congener element of Cr, the addition of Mo can further improve the amorphous forming abili...

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Abstract

The invention discloses a Fe-Cr-B system corrosion-resistant block amorphous alloy and a preparation method thereof and belongs to the field of amorphous alloys. The chemical components of the Fe-Cr-B system corrosion-resistant block amorphous alloy are designed according to the atomic ratio as follows: FeaCrbMocBdMeRfXg and are characterized in that M is one or more of Mn, Co and Ni, R is one or more of Ti, Zr, Nb, Hf, Ta and W, and X is one or more of Si and P, wherein a is larger than 20 and no larger than 78, b is no less than 5 and no larger than 45, c is no less than 0 and no larger than 20, d is no less than 6 and no larger than 30, e is no less than 0 and no larger than 40, f is no less than 2 and no larger than 15, g is no less than 0 and no larger than 10, and a+b+c+d+e+f+g=100. The Fe-Cr-B system corrosion-resistant block amorphous alloy is characterized in that the Fe-Cr-B system corrosion-resistant block amorphous alloy is low in cost and can be smelted by using an industrial raw material, is high in boron content, is good in amorphous formation capability and is particular suitable for storage and transportation of nuclear wastes, is high in Cr content without containing C so as to ensure excellent corrosion resistance, and is also very high in compressive strength and microhardness. Therefore, the iron-based amorphous alloy disclosed by the invention has a good application prospect in the aspects of metal material corrosion resistance, nuclear facilities and wear-resistant parts.

Description

technical field [0001] The invention belongs to the field of amorphous alloys, in particular to an Fe-Cr-B series amorphous alloy with high amorphous forming ability, high boron content and high corrosion resistance. Background technique [0002] Iron-based amorphous alloys have shown important application value in industry due to their low cost, good glass forming ability, good soft magnetic properties, high wear resistance and high corrosion resistance. Compared with other amorphous alloys, iron-based amorphous alloys can accommodate a high content of B atoms, which can be used as neutron absorbers for nuclear waste without crystallization, and the addition of Cr will significantly improve the quality of iron-based amorphous alloys. corrosion resistance performance. Following the large-scale industrialization of iron-based amorphous soft magnetic alloys, the development and application of wear-resistant and corrosion-resistant iron-based amorphous alloys for coatings has ...

Claims

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Application Information

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IPC IPC(8): C22C45/00C22C45/02C22C1/02C22C33/04
Inventor 惠希东斯佳佳吴一栋王坦
Owner UNIV OF SCI & TECH BEIJING
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