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VCp reinforced composite abrasion-resistant alloy material and preparation method thereof

A wear-resistant alloy and reinforced composite technology, which is applied in the field of wear-resistant alloy materials, can solve the problems of insufficient toughness and stability of reinforced composite wear-resistant alloy materials.

Inactive Publication Date: 2016-07-13
HUNAN CHEM VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the present invention needs to solve VC p Insufficient toughness and toughness stability of reinforced composite wear-resistant alloy materials in slightly high impact situations

Method used

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  • VCp reinforced composite abrasion-resistant alloy material and preparation method thereof
  • VCp reinforced composite abrasion-resistant alloy material and preparation method thereof
  • VCp reinforced composite abrasion-resistant alloy material and preparation method thereof

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preparation example Construction

[0045] In the preparation method of the present invention, the compound inoculant is used for treatment, wherein the composition of the compound inoculant is designed as: 0.10%Ti+0.25%RE+0.15%Mg+0.15%Zn. By adding a certain amount of titanium element into the molten iron, since the solidification and precipitation temperature of TiC is higher than that of VC particles, and it is a face-centered cubic lattice with VC, the lattice constant is similar, and the lattice mismatch degree is small, so TiC is easy to be used as The heterogeneous core of VC can also refine austenite dendrites and improve the morphology and distribution of eutectic carbides. Therefore, TiC is precipitated first; thus, a heterogeneous core is formed in the molten iron to inoculate the molten iron. Since the liquid iron composition design contains Ti element, and its modifier also contains a certain amount of Ti element, so that during the solidification process of the molten iron, the amount of TiC precip...

Embodiment 1

[0052] Clean up scrap steel, pig iron, recarburizer, ferrovanadium, ferrotitanium, ferrochrome, ferromolybdenum, ferromanganese, according to C: 2.0%, V: 6.5%, Si: 1.5%, Mn: 1.5%, Cr: 1.0 %, Mo: 1.0%, Ti: 2.0%, S: ≤0.04%, P: ≤0.06%, and the balance is iron for batching and sorting; Put iron and ferromolybdenum into the furnace for heating and smelting. The smelting temperature is 1550°C. Ferrovanadium is added in the later stage of smelting. 0.1% aluminum wire or aluminum particles are pre-deoxidized, then add desulfurizer to desulfurize, and remove slag; add ferro-titanium alloy to the furnace for melting, then adjust the composition of each element in front of the furnace, raise the furnace temperature to 1650 ° C after the composition is qualified, and then Add 0.1% aluminum wire or aluminum particles accounting for the mass of the molten iron and then release it from the furnace after final deoxidation treatment; add a composite inoculant modifier to the molten iron after ...

Embodiment 2

[0054] Clean up scrap steel, pig iron, recarburizer, ferrovanadium, ferrotitanium, ferrochrome, ferromolybdenum, ferromanganese, according to C: 2.8%, V: 8.0%, Si: 1.0%, Mn: 1.2%, Cr: 2.8 %, Mo: 1.8%, Ti: 1.5%, S: ≤0.04%, P: ≤0.06%, and the rest is iron for batching and sorting; Put iron and ferromolybdenum into the furnace for heating and smelting. The smelting temperature is 1580°C. Ferrovanadium is added at the later stage of smelting. 0.12% aluminum wire or aluminum pellets are pre-deoxidized, then add desulfurizer to desulfurize, and remove slag; then add ferro-titanium alloy to the furnace to melt, adjust the composition of each element in front of the furnace after melting, and raise the furnace temperature to 1680°C after the composition of each element is qualified , and then add 0.12% aluminum wire or aluminum particles accounting for the mass of the molten iron, and then release it from the furnace after final deoxidation treatment; add a composite inoculant modifie...

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Abstract

The invention relates to the field of abrasion-resistant alloy materials, in particular to a VCp reinforced composite abrasion-resistant alloy material and a preparation method thereof. The VCp reinforced composite abrasion-resistant alloy material comprises the following components in percentage by mass: 2.0-3.2% of C, 6.5-10.5% of V, 0.5-1.5% of Si, 0.8-1.5% of Mn, 1.0-3.5% of Cr, 1.0-2.5% of Mo, 0.5-2.0% of Ti, less than or equal to 0.04% of S, less than or equal to 0.06% of P and the balance of iron. According to the VCp reinforced composite abrasion-resistant alloy material prepared by adopting the preparation method provided by the invention, the retained austenite quantity of the VCp reinforced composite abrasion-resistant alloy material and the carbon content of the retained austenite are increased, the room temperature stability is improved, and the impact toughness is improved. Meanwhile, as the carbon content of the retained austenite is increased, and the retained austenite can generate local phase transformation to form martensite under the action of external stress, so that the local hardness and abrasion resistance of base material are improved. Through the traditional technology for heating processing, the generated retained austenite quantity is relatively small, and the retained austenite is relatively low in stability due to relatively low carbon content under the action of external stress, therefore negative influences are caused to the abrasion resistance of the material.

Description

technical field [0001] The invention relates to the field of wear-resistant alloy materials, specifically a VC p Reinforced composite wear-resistant alloy material and preparation method thereof. Background technique [0002] At present, in the field of wear-resistant alloy materials, wear-resistant materials with martensite or bainite matrix structure or third-generation wear-resistant materials with particle-reinforced phases in addition to martensite, bainite, and retained austenite matrix are mostly used. Grinding material - high chromium cast iron to develop wear-resistant parts, because there is a high hardness reinforcing phase Cr in high chromium cast iron 7 C 3 , its carbide microhardness has reached HV1300~1600, so compared with the previous two generations of wear-resistant materials - white cast iron and high manganese steel, the performance has been greatly improved, and the hardness can reach HRC60~65, but because of its carbides usually It is long and thick...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C37/06C22C33/10C21D5/00C21D1/18
CPCC22C37/10C21D1/18C21D5/00C22C33/10C22C37/06
Inventor 聂辉文曾松盛聂俊红曾小玲
Owner HUNAN CHEM VOCATIONAL TECH COLLEGE
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