Ceramic reinforced steel composite material and preparation method

A technology of composite materials and ceramics, applied in heat exchange equipment, rotors, cylinders, etc., can solve problems such as limited operating temperature, poor plasticity, and insufficient strength, and achieve low production costs, optimized mechanical properties, and simple production processes.

Inactive Publication Date: 2019-02-22
河南工学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of insufficient strength, poor plasticity and limited service temperature of aluminum-magnesium-based composite materials in the prior art, effectively improve the wear resistance of the material; and realize the simple production process of wear-resistant materials, low equipment requirements, and easy promotion. The invention provides a ceramic reinforced steel composite material

Method used

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  • Ceramic reinforced steel composite material and preparation method
  • Ceramic reinforced steel composite material and preparation method
  • Ceramic reinforced steel composite material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Make a sand casting model, and place Silicon carbide ceramic rods are used as reinforcements and fixed in the above-mentioned sand casting model; the matrix raw materials C, Mn, Si, Al and Fe are prepared for twinning induced plasticity steel and smelted into twinning induced plasticity steel, and the components in the twinning induction plasticity steel The mass proportion is: 0.4%C, 20.5%Mn, 0.80%Si, 0.05Al%, and the rest is Fe.

[0029] Step 2: pouring the liquid twinning induced plasticity steel smelted in step 1 into the casting mold;

[0030] Step 3: Static solidification and cooling. That is made to Silicon carbide ceramic rods as reinforcements for twin-induced plasticity steel matrix composites.

[0031] The cross-sectional structure of the ceramic-reinforced twin-induced plasticity steel matrix composite prepared in this example is as follows: figure 1 As shown, the twinning induced plasticity steel matrix 2 and the ceramic reinforcement 3 are co...

Embodiment 2

[0035] Adopt the same steps as Example 1 to make the ceramic reinforced steel composite material, the difference is:

[0036] 1. Use the casting model as the metal type, and the ceramic reinforcement as the zirconia ceramic rods.

[0037] 2. The mass proportion of each component in the twinning induced plasticity steel matrix is: 0.4%C, 5%Mn, 0.05%Si, 0.05Al%, and the rest is Fe.

[0038] The same method as in Example 1 was used to test, and it was measured that the as-cast bending strength of the prepared ceramic reinforced steel composite material reached 780 MPa.

Embodiment 3

[0040] Adopt the same steps as Example 1 to make the ceramic reinforced steel composite material, the difference is:

[0041] 1. Use the casting model as the disappearing type, and the ceramic reinforcement as silicon nitride ceramic rods.

[0042] 2. The mass proportion of each component in the twinning induced plasticity steel matrix is: 2.0%C, 35.0%Mn, 0.80%Si, 1.0Al%, and the rest is Fe.

[0043] The same method as in Example 1 was used to test, and it was measured that the as-cast bending strength of the prepared ceramic reinforced steel composite material reached 855 MPa.

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Abstract

The invention discloses a ceramic reinforced steel composite material. A composite material base body is twin-crystal-induced plastic steel, a reinforcing body is ceramic. High-hardness and high-performance ceramic materials is used as the reinforcing body to be composited with the high-strength, high toughness and twin-crystal-induced plastic steel, so that the defects of insufficient strength, poor plasticity, limited using temperature and the like of a aluminum-magnesium-based composite material are overcome, and the wear resistance of the material is effectively improved. Due to the fact that the size of the reinforcing body can be designed and adjusted according to needs, the steel composite material can be widely applied to various wear-resisting occasions. The invention further discloses a preparation method of the ceramic reinforced steel composite material; according to the method, the base body, namely, the twin-crystal-induced plastic steel is poured into a mold fixedly provided with a ceramic reinforced material to manufacture the steel composite material; and the production process is simple, the requirement on equipment is low, the production cost is low, and the popularization is easy.

Description

technical field [0001] The invention relates to a metal composite material, in particular to a ceramic reinforced steel composite material and a preparation method thereof. Background technique [0002] The development and application of new materials and new technologies is the basis for comprehensively improving the overall technology of my country's industry, and it is the core technology and the key technology. Wear-resistant steel has a wide demand in my country's electric power, mining and other fields. By improving the wear resistance of materials, the consumption of parts can be effectively reduced, thereby improving efficiency and reducing production costs. At present, the most widely used wear-resistant materials are wear-resistant steel materials. The preparation process of wear-resistant steel materials is simple, the machinability is strong, and the later assembly is easy. However, the performance of wear-resistant steel has reached the limit, and it is no longe...

Claims

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Application Information

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IPC IPC(8): C22C38/06C22C38/04C22C38/02B22D19/00
Inventor 孙国进李明科苏光冯振邓想
Owner 河南工学院
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