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tic precipitation reinforced high manganese steel matrix composite material and its preparation process

A composite material, high manganese steel technology, applied in the field of alloys, can solve problems such as insufficient wear resistance, achieve the effect of improving wear resistance, reducing wear rate, and ensuring wear resistance and hardness

Active Publication Date: 2020-12-08
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a TiC precipitation-reinforced high manganese steel matrix composite material, aiming to improve the problem of insufficient wear resistance of high manganese steel materials under low impact conditions

Method used

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  • tic precipitation reinforced high manganese steel matrix composite material and its preparation process

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Embodiment 1

[0045] This embodiment provides a TiC precipitation-reinforced high-manganese steel-based composite material, which includes TiC reinforcement particles, the volume fraction of TiC particles is about 3.5%, and the average particle size is 7.8 μm.

[0046] The chemical composition of TiC precipitation reinforced high manganese steel matrix composites is: C: 1.9%, Ti: 2.1%, Si: 0.6%, Mn: 12%, Ni: 1%, Cr: 1%, S≤0.03%, P ≤0.03%, the rest is Fe and unavoidable impurity elements.

[0047] The raw materials of TiC precipitation reinforced high manganese steel matrix composites include high manganese steel matrix material and reinforcement raw material, wherein, the mass ratio of high manganese steel matrix material and reinforcement raw material is 100:2.1; the chemical composition of high manganese steel matrix material The percentage by weight is: C: 1.2%, Si: 0.6%, Mn: 12%, Ni: 1%, Cr: 1%, in addition, S≤0.03%, P≤0.03%, the rest is Fe and some unavoidable impurity elements; the r...

Embodiment 2

[0058] This embodiment provides a TiC precipitation-reinforced high-manganese steel-based composite material, which includes TiC reinforcement particles, the volume fraction of TiC particles is about 6.3%, and the average particle size is 10.8 μm.

[0059] The chemical composition of TiC precipitation reinforced high manganese steel matrix composites is: C: 2.2%, Ti: 4.2%, Si: 0.4%, Mn: 12%, Ni: 1.9%, Cr: 1.9%, S≤0.03%, P ≤0.03%, the rest is Fe and unavoidable impurity elements.

[0060] The raw materials of TiC precipitation reinforced high manganese steel matrix composites include high manganese steel matrix material and reinforcement raw material, wherein, the mass ratio of high manganese steel matrix material and reinforcement body raw material is 100:3.8; the chemical composition of high manganese steel matrix material The percentage by weight is: C: 1.0%, Si: 0.4%, Mn: 12%, Ni: 1.9%, Cr: 1.9%, in addition, S≤0.03%, P≤0.03%, the rest is Fe and some unavoidable impurity e...

Embodiment 3

[0071] This embodiment provides a TiC precipitation-reinforced high-manganese steel-based composite material, which includes TiC reinforcement particles, the volume fraction of TiC particles is about 3.3%, and the average particle size is 5.8 μm.

[0072] The chemical composition of TiC precipitation reinforced high manganese steel matrix composites is: C: 1.6%, Ti: 2.0%, Si: 0.6%, Mn: 14%, Ni: 2.0%, Cr: 2.0%, S≤0.03%, P ≤0.03%, the rest is Fe and unavoidable impurity elements.

[0073]The raw materials of TiC precipitation reinforced high manganese steel matrix composites include high manganese steel matrix material and reinforcement raw material, wherein, the mass ratio of high manganese steel matrix material and reinforcement raw material is 100:2.0; the chemical composition of high manganese steel matrix material The percentage by weight is: C: 1.1%, Si: 0.6%, Mn: 14%, Ni: 2.0%, Cr: 2.0%, in addition, S≤0.03%, P≤0.03%, the rest is Fe and some unavoidable impurity elements...

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Abstract

The invention relates to the alloy field, in particular to a TiC precipitation reinforced high manganese steel matrix composite material and a preparation process thereof. The TiC precipitation reinforced high manganese steel matrix composite material comprises TiC reinforcement particles, the volume fraction of the TiC reinforcement particles is 3.3%-14.3%, and the chemical composition comprisesthe following components of, in percentage by weight, 1.6%-2.7% of C,10%-14% of Mn, 2.1%-6% of Ti, 0.3%-1.0% of Si, 0-2% of Ni,0-2% of Cr, less than 0.03% of S, less than 0.03% of P, and the balance Fe and some inevitable impurity elements. The TiC precipitation reinforced high manganese steel matrix composite material can improve the problem of insufficient wear resistance of high manganese steelmaterials under low impact working conditions.

Description

technical field [0001] The invention relates to the field of alloys, in particular to a TiC precipitation-reinforced high-manganese steel-based composite material and a preparation process thereof. Background technique [0002] High manganese steel is an important material for wear-resistant parts. High manganese steel itself is relatively soft, but under the action of strong impact or high compressive stress, its surface layer can be hardened rapidly through deformation, resulting in a high hardness and high wear-resistant surface layer. . The special performance of high manganese steel has made it widely used in various mechanical equipment for a long time, such as crusher hammer, excavator bucket teeth, railway turnout and so on. "Conquering rigidity with softness" is the key to high manganese steel becoming an important wear-resistant material. However, as industrial working conditions become more and more complex, the shortcomings of wear-resistant manganese steel are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/04C22C38/14C22C38/02C22C38/08C22C38/38C22C38/28C22C38/36C22C38/58C22C38/50C22C38/56C22C33/06C21C7/06C21D1/18
CPCC21C7/06C21D1/18C22C33/06C22C38/02C22C38/04C22C38/08C22C38/14C22C38/28C22C38/36C22C38/38C22C38/50C22C38/56C22C38/58Y02P10/20
Inventor 骆智超宁嘉沛郑开宏王娟郑志斌龙骏
Owner GUANGDONG INST OF NEW MATERIALS