A kind of high-nitrogen wear-resistant and corrosion-resistant alloy and preparation method thereof

A corrosion-resistant alloy and high-nitrogen technology, which is applied in the field of high-nitrogen wear-resistant and corrosion-resistant alloys and their preparation, can solve problems such as the need to improve wear resistance and corrosion resistance, and achieve slow electrochemical corrosion, good corrosion resistance and wear resistance. easy-to-control effects

Active Publication Date: 2020-01-24
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The stainless steel has a high nitrogen content, but its wear resistance and corrosion resistance still need to be improved

Method used

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  • A kind of high-nitrogen wear-resistant and corrosion-resistant alloy and preparation method thereof
  • A kind of high-nitrogen wear-resistant and corrosion-resistant alloy and preparation method thereof
  • A kind of high-nitrogen wear-resistant and corrosion-resistant alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]The high-nitrogen wear-resistant and corrosion-resistant alloy of this embodiment is composed of the following elements by mass percentage: C: 2.138%, Cr: 27.25%, Mo: 0.6583%, Si: 0.9036%, Mn: 0.6336%, N: 0.39%, P≤0.01%, S≤0.01%, rare earth element: Ce: 0.1%, the balance is iron and unavoidable impurities.

Embodiment 2

[0037] The high-nitrogen wear-resistant and corrosion-resistant alloy of this embodiment is composed of the following elements by mass percentage: C: 2.237%, Cr: 25.62%, Mo: 0.7025%, Si: 1.037%, Mn: 0.6418%, N: 0.37%, P≤0.01%, S≤0.01%, rare earth element Ce: 0.15%, the balance is iron and unavoidable impurities.

Embodiment 3

[0039] The high-nitrogen wear-resistant and corrosion-resistant alloy of this embodiment is composed of the following elements by mass percentage: C: 2.056%, Cr: 24.52%, Mo: 0.5781%, Si: 1.158%, Mn: 0.5835%, N: 0.29%, P≤0.01%, S≤0.01%, rare earth element Ce: 0.20%, the balance is iron and unavoidable impurities.

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Abstract

The invention relates to a high-nitrogen abrasion-resistant and corrosion-resistant alloy and a preparation method thereof, and belongs to the technical field of electrical discharge machine materials. The high-nitrogen abrasion-resistant and corrosion-resistant alloy comprises the following elements in percentage by mass: 2.1-2.5% of C, 23-28% of Cr, 0.5-0.8% of Mo, 0.9-1.2% of Si, 0.5-0.8% of Mn, 0.2-0.6% of N, not greater than 0.01% of P, not greater than 0.01% of S, and the balance iron and inevitable impurities. The high-nitrogen abrasion-resistant and corrosion-resistant alloy is high incarbon, chrome and nitrogen element content and is high in corrosion resistance and abrasion resistance; and the high-nitrogen abrasion-resistant and corrosion-resistant alloy can be used as an impeller material of a slurry pump.

Description

technical field [0001] The invention relates to a high-nitrogen wear-resistant and corrosion-resistant alloy and a preparation method thereof, belonging to the technical field of ferroalloy materials. Background technique [0002] The performance of mechanical equipment is closely related to the performance of its manufacturing materials. Slurry pumps are industrial pumps widely used in mining, electric power, metallurgy, coal, environmental protection and other industries to transport slurry containing abrasive solid particles, such as slurry transportation in metallurgical ore dressing plants, and hydraulic ash removal in thermal power plants. [0003] Due to the corrosive medium in the transported slurry in most cases, coupled with the wear of solid particles, during the high-speed rotation of the rotor of the slurry pump, corrosion and wear act simultaneously, causing serious damage to the surface of the impeller, which greatly shortens the Workpiece life. It can be se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10C22C37/06C22C33/08C21D1/18C21D5/00
CPCC21D1/18C21D5/00C22C33/08C22C37/06C22C37/10
Inventor 魏世忠路富刚徐流杰王晓东肖利强周玉成王方方易旭阳毛丰陈冲张程潘昆明李秀青
Owner HENAN UNIV OF SCI & TECH
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