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A kind of high-boron iron-based erosion-corrosion resistant alloy and preparation method thereof

An erosion-resistant, iron-based technology, applied in the field of wear-resistant and corrosion-resistant metal materials, can solve the problems of high price and complicated preparation process, and achieve the effects of low production cost, simple process, and improved erosion and corrosion resistance

Inactive Publication Date: 2016-08-17
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it contains VC powder with high price, and the preparation process is complicated

Method used

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  • A kind of high-boron iron-based erosion-corrosion resistant alloy and preparation method thereof
  • A kind of high-boron iron-based erosion-corrosion resistant alloy and preparation method thereof
  • A kind of high-boron iron-based erosion-corrosion resistant alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0040] The high boron iron-based erosion corrosion resistant alloy of this embodiment is composed of the following components in weight percentage: C 0.12%, B 1.92%, Si 0.62%, Mn 0.67%, Ni 2.32%, Cr 17.73%, Ce0.18% , Ti 0.36%, N 0.06%, Al 0.07%, Ca 0.06%, P<0.03, S<0.03, the balance is Fe and other unavoidable impurities.

[0041] The high-boron iron-based erosion-resistant corrosion-resistant alloy of this embodiment is prepared by melting in a 500 kg intermediate frequency induction furnace, and the preparation method is specifically as follows:

[0042] Step 1, heating and melting pure iron and ferrochromium, adding ferrosilicon and ferromanganese to the molten solution after the molten solution is cleared, and then adding pure nickel plate, ferrotitanium and ferroboron;

[0043] Step 2. After the composition of the furnace is adjusted to pass, the temperature of the melt is raised to 1640°C, and then silicon-calcium alloy and aluminum are added to the melt to deoxidize, an...

Embodiment 2

[0053] The high boron iron-based erosion corrosion resistant alloy of this embodiment is composed of the following components in weight percentage: C 0.15%, B 1.76%, Si 0.57%, Mn 0.61%, Ni 2.56%, Cr 16.92%, Ce0.16% , Ti 0.41%, N 0.08%, Al 0.06%, Ca 0.08%, P<0.03, S<0.03, the balance is Fe and other unavoidable impurities.

[0054] The high-boron iron-based erosion-resistant corrosion-resistant alloy of this embodiment is prepared by melting in a 500 kg intermediate frequency induction furnace, and the preparation method is specifically as follows:

[0055] Step 1, heating and melting pure iron and ferrochromium, adding ferrosilicon and ferromanganese to the molten solution after the molten solution is cleared, and then adding pure nickel plate, ferrotitanium and ferroboron;

[0056] Step 2. After the composition of the furnace is adjusted to pass, the temperature of the melt is raised to 1620°C, and then silicon-calcium alloy and aluminum are added to the melt to deoxidize, an...

Embodiment 3

[0065] The high boron iron-based erosion corrosion resistant alloy of this embodiment is composed of the following components in weight percentage: C 0.16%, B 1.89%, Si 0.51%, Mn 0.66%, Ni 2.43%, Cr 18.12%, Ce0.15% , Ti 0.43%, N 0.06%, Al 0.07%, Ca 0.06%, P<0.03, S<0.03, the balance is Fe and other unavoidable impurities.

[0066] The high-boron iron-based erosion-resistant corrosion-resistant alloy of this embodiment is prepared by melting in a 500 kg intermediate frequency induction furnace, and the preparation method is specifically as follows:

[0067] Step 1, heating and melting pure iron and ferrochromium, adding ferrosilicon and ferromanganese to the molten solution after the molten solution is cleared, and then adding pure nickel plate, ferrotitanium and ferroboron;

[0068] Step 2. After the composition of the furnace is adjusted to pass, the temperature of the melt is raised to 1630°C, and then silicon-calcium alloy and aluminum are added to the melt to deoxidize, an...

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Abstract

The invention discloses a high boron iron-based erosion-corrosion resistant alloy. The alloy is composed of the following ingredients by weight percentage: 0.10-0.17% of C, 1.50-2.10% of B, 0.40-0.80% of Si, 0.40-0.80% of Mn, 2.00-3.00% of Ni, 16.10-18.20% of Cr, 0.10-0.20% of Ce, 0.30-0.50% of Ti, 0.05-0.10% of N, 0.05-0.10% of Al, 0.04-0.10% of Ca, less than 0.03% of P, less than 0.03% of S and the balance of Fe and other inevitable impurities. In addition, the invention discloses a preparation method of the alloy. The alloy is mainly constituted by martensite, and has excellent corrosion resistance; hard-phase borides are distributed in a matrix, so that the erosion-corrosion resistance of the alloy can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant and corrosion-resistant metal materials, and in particular relates to a high-boron iron-based erosion-resistant corrosion-resistant alloy and a preparation method thereof. Background technique [0002] Erosion corrosion generally exists in mining, metallurgy, coal, water conservancy and other important national economic fields. The key flow-passing components in the material conveying equipment have been in the flowing corrosive medium for a long time, and are continuously subjected to the erosion and corrosion of the medium. The erosion and corrosion of the medium promote each other, and have a more destructive effect than pure erosion and pure corrosion. Therefore, it is of great significance to study high-performance erosion-resistant materials. [0003] In recent years, in order to obtain new high-performance erosion-resistant materials, a lot of research work has been carried out at ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/54C22C33/04C21D6/00
Inventor 易大伟
Owner XIAN UNIV OF SCI & TECH
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