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Wear-resistant alloy and preparation method thereof

A wear-resistant alloy and melt technology, applied in the field of wear-resistant alloys, can solve the problems of difficulty in resisting abrasive wear, erosion wear, low hardness of chromium carbides, and unsatisfactory service life.

Pending Publication Date: 2022-02-25
HENAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of chromium carbide in high chromium cast iron is low, it is difficult to resist severe abrasive wear and erosion wear, and the service life is not ideal

Method used

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  • Wear-resistant alloy and preparation method thereof
  • Wear-resistant alloy and preparation method thereof
  • Wear-resistant alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The wear-resistant alloy of this embodiment is composed of the following components in mass percentage: C: 1.5%, Cr: 4.0%, Si: 0.5%, Mo: 0.5%, V: 1.5%, Mn: 0.5%, and the balance is Fe and unavoidable impurities. The wear-resistant alloy of this example is prepared by the method of Example 5.

Embodiment 2

[0039] The wear-resistant alloy of this embodiment is composed of the following components by mass percentage: C: 2.2%, Cr: 8.0%, Si: 2.0%, Mo: 2.5%, V: 3.5%, Mn: 1.5%, and the balance is Fe and inevitable impurity elements. The wear-resistant alloy of this example is prepared by the method of Example 6.

Embodiment 3

[0041] The wear-resistant alloy of this embodiment is composed of the following components in mass percentage: C: 1.8%, Cr: 4.0%, Si: 1.5%, Mo: 1.5%, V: 3.5%, Mn: 0.5%, and the balance is Fe and inevitable impurity elements. The wear-resistant alloy of this example is prepared by the method of Example 7.

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Abstract

The invention relates to a wear-resistant alloy and a preparation method thereof, and belongs to the field of wear-resistant alloys. The wear-resistant alloy disclosed by the invention is composed of the following components in percentage by mass: 1.5% to 2.5% of C, 4.0% to 8.0% of Cr, 0.5% to 2.0% of Si, 0.5% to 2.5% of Mo, 1.5% to 2.5% of V, 0.5% to 1.5% of Mn and the balance of Fe and inevitable impurity elements. The wear-resistant phase in the wear-resistant alloy disclosed by the invention mainly comprises VC, M2C, M7C3 and M23C6, and VC and M2C have higher hardness; compared with the existing high-chromium cast iron, the wear-resistant alloy disclosed by the invention has higher impact toughness, so that the wear-resistant alloy has better wear resistance under an impact load.

Description

technical field [0001] The invention relates to a wear-resistant alloy and a preparation method thereof, specifically belonging to the field of wear-resistant alloys. Background technique [0002] Wear is one of the main manifestations of material failure, and wear accounts for the largest proportion. It is widely found in petrochemical, mining, water conservancy and other mechanical equipment. It is also an important reason for the failure of components such as impellers, conical liners and pipes. According to statistics, 1 / 3 to 1 / 2 of energy is consumed by wear, and 80% of materials fail due to wear. my country consumes a large amount of wear-resistant materials every year. In 2019, my country's economic losses due to friction and wear exceeded 4 trillion yuan, accounting for about 5% of GDP in that year, and more than 50% of mechanical accidents were caused by wear. In recent years, with the rapid development of industrial equipment, the requirements for the wear resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C38/34C22C38/36C21C7/06C21D1/18C21D6/00C22C33/06
CPCC22C38/02C22C38/04C22C38/34C22C38/36C22C38/22C22C38/24C22C33/06C21C7/06C21D1/18C21D6/002C21D6/005C21D6/008
Inventor 魏世忠江涛徐流杰毛丰王晓东陈冲熊美张程肖利强司岸恒杨璐
Owner HENAN UNIV OF SCI & TECH
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