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Binding phase double-reinforced metal ceramic material and preparation method thereof

A technology of cermet and binder phase, which is applied in the field of double-strengthened cermet material and its preparation, which can solve the problems of intense reaction process and large size, and achieve excellent high temperature performance and high red hardness.

Pending Publication Date: 2021-02-26
ZHUZHOU HARD ALLOY GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But Ni reacts with Al to form Ni 3 The reaction process of Al is more intense, making the formation of Ni 3 Larger Al size, which leads to brittleness of the final product

Method used

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  • Binding phase double-reinforced metal ceramic material and preparation method thereof
  • Binding phase double-reinforced metal ceramic material and preparation method thereof
  • Binding phase double-reinforced metal ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] By mass percentage 40Ti(C,N)-38(Ti / W)C-7Ni-6Cu-7Co-1Mo 2 C-1AlB 2 After weighing, carry out wet milling in a ball mill, the ball milling medium is alcohol, the solid-to-liquid ratio is 2:1, and the ball-to-material weight ratio is 5:1, and the forming agent paraffin wax with a weight of 4% of the mixed raw material is added to the ball mill, and filtered after ball milling for 30 hours. Spray-dry the alloy powder mixture, then press the alloy powder mixture, the molding pressure is 150MPa, and finally sinter, the sintering temperature is 1410°C, the sintering furnace pressure is 4MPa, the holding time is 1.5h, and the cermet material is obtained. The performance test results As shown in the table below:

[0021]

[0022] The microscopic morphology pictures of the cermet material prepared in this embodiment are as follows: figure 1 It can be seen from the figure that the binder phase is evenly distributed and the size is small.

Embodiment 2

[0024] By mass percentage 40Ti(C,N)-38(Ti / W)C-7Ni-6Cu-7Co-1.0TaC-0.5Cr 3 C 2 -0.5AlB 2 After weighing, carry out wet milling in a ball mill, the ball milling medium is alcohol, the solid-to-liquid ratio is 2:1, and the ball-to-material weight ratio is 5:1, and the forming agent paraffin wax with a weight of 4% of the mixed raw material is added to the ball mill, and filtered after ball milling for 30 hours. Spray-dry the alloy powder mixture, then press the alloy powder mixture, the molding pressure is 150MPa, and finally sinter, the sintering temperature is 1410°C, the sintering furnace pressure is 4MPa, the holding time is 1.5h, and the cermet material is obtained. The performance test results As shown in the table below:

[0025]

[0026]

Embodiment 3

[0028] 50TiC-19Ni-19Cu-10Co-0.5Mo by mass percentage 2 C-1.5AlB 2 After weighing, carry out wet milling in a ball mill, the ball milling medium is alcohol, the solid-to-liquid ratio is 2:1, and the ball to material weight ratio is 5:1, and the forming agent paraffin wax with the weight of 3.6% of the mixed raw materials is added to the ball mill, and filtered after ball milling for 30 hours. Spray-dry the alloy powder mixture, then add the alloy to the powder mixture and press it, the molding pressure is 150MPa, and finally sintering, the sintering temperature is 1400°C, the sintering furnace pressure is 4MPa, the holding time is 1.5h, and the cermet material is obtained. Its performance test The results are shown in the table below:

[0029]

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Abstract

The invention discloses a binding phase double-reinforced metal ceramic material and a preparation method thereof. The binding phase double-reinforced metal ceramic material comprises the following components by mass percentage: 0-45% of additive phase, 10-50% of binding phase and the balance of hard phase, and the sum of the weight percentages of the components is 100%; wherein the additive phaseis one or more of WC, (Ti,W)C, Mo, Mo2C, TaC, NbC, Cr, Cr3C2 and VC; the binding phase is Ni-Cu-Al or Ni-Cu-Al-Co, Al is added in the form of AlB2 powder, and other metal components are added in theform of metal elementary substances; and the hard phase is one or more of TiC, TiN and Ti(C, N). The Ni3Al precipitation strengthening and Ni-Cu solid solution strengthening double-reinforced bindingphases are adopted, the high-red-hardness, abrasion-resistant, oxidation-resistant, corrosion-resistant and high-strength metal ceramic material can be prepared, and the metal ceramic material has excellent high-temperature performance and is particularly suitable for the field of high-speed cutting.

Description

technical field [0001] The invention belongs to the technical field of composite materials composed of ceramic phases and metal phases, and in particular relates to a double-strengthened cermet material and a preparation method thereof. Background technique [0002] Ti-based cermet material has high red hardness, wear resistance and good oxidation resistance, and is an ideal candidate material for making high-speed and high-efficiency chip cutting tools, but its insufficient toughness restricts its popularization and application. [0003] Chinese patent CN107345284A achieves the design idea of ​​solid solution strengthening by introducing Ni-Cu infinite mutual solubility continuous solid solution, which stipulates that Cu content ÷ (Ni+Co) content ≤ 1, Co content ≤ Ni content, to ensure the bonding relative to the hard phase. Wetness, and a cermet material with low production cost, low density, good strength and toughness, excellent wear resistance and corrosion resistance, ...

Claims

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Application Information

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IPC IPC(8): C22C30/02C22C29/10C22C29/06C22C1/05C22C1/10
CPCC22C1/051C22C29/005C22C29/04C22C29/067C22C29/10C22C30/02
Inventor 孔德方吴建兵夏艳萍朱立荣汪巍谢英
Owner ZHUZHOU HARD ALLOY GRP CO LTD
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