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High-strength molybdenum nickel boron ternary boride material and manufacturing preparation method thereof

A ternary boride, high-strength technology, applied in the field of molybdenum nickel boron ternary boride materials, can solve the problems of heavy metal dust, human health damage, affecting the continuity of materials, easy to generate dust, etc. The effect of grain growth and segregation reduction

Active Publication Date: 2017-06-20
广东博杰特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the mechanical ball milling method has the disadvantages of high labor intensity, high noise, long cycle time, and easy oxidation of powder. Dust is easily generated during the process, and heavy metal dust will cause great harm to human health.
The powder obtained by mechanical mixing is a mixture, which is prone to segregation and uneven distribution. After sintering, it will affect the continuity of the material, and it is easy to produce defects such as holes and cracks. If it is a surface coating, its bonding strength is poor.

Method used

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  • High-strength molybdenum nickel boron ternary boride material and manufacturing preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] Embodiment 1: A high-strength molybdenum-nickel-boron ternary boride material provided in this embodiment has the following element content percentages: boron (B) content is 3%, molybdenum (Mo) content is 40%; chromium (Cr) content is 8%, carbon (C) content is 0.2%, vanadium (V) content is 3%, niobium (Nb) content is 4%, tungsten (W) content is 0.5%, cerium The content of (Ce) is 0.3%, the content of manganese (Mn) is 3%, and the content of nickel (Ni) is 38%. Mo 2 NiB 2 The basic component of the base cermet is the hard phase Mo 2 NiB 2 with the binder phase Ni, Mo 2 NiB 2 Its crystal structure is orthorhombic system, which can be transformed into a tetragonal system after adding an appropriate amount of Cr and V. During the liquid phase sintering process, the crystal grains grow unevenly and produce sharp angles, resulting in the adhesion of the hard phase grains to the metal. The bonding of the junction phase is poor, which is not conducive to the improvement ...

Embodiment 2

[0039] Example 2: This example provides a high-strength molybdenum-nickel-boron ternary boride material and its preparation method, which are basically the same as Example 1, except that the elements and their mass percentages are as follows: boron (B) The content of molybdenum (Mo) is 5%, the content of chromium (Cr) is 1%, the content of carbon (C) is 0.5%, the content of vanadium (V) is 4%, niobium (Nb) The content of tungsten (W) is 1%, the content of cerium (Ce) is 1%, the content of manganese (Mn) is 1%, and the content of nickel (Ni) is 27.5%.

Embodiment 3

[0040] Example 3: A high-strength molybdenum-nickel-boron ternary boride material and its preparation method provided in this example are basically the same as in Example 1, except that the elements and their mass percentages are as follows: boron (B) The content of molybdenum (Mo) is 6%, the content of chromium (Cr) is 6%, the content of carbon (C) is 0.8%, the content of vanadium (V) is 0.5%, niobium (Nb) The content of tungsten (W) is 3%, the content of cerium (Ce) is 0.1%, the content of manganese (Mn) is 2%, and the content of nickel (Ni) is 41.6%.

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Abstract

The invention discloses a high-strength molybdenum nickel boron ternary boride material and a preparation method thereof. The high-strength molybdenum nickel boron ternary boride material comprises the following elements by content percent: 3% to 6% of boron, 35% to 55% of molybdenum, 1% to 8% of chromium, 0.2% to 0.8% of carbon, 0.5% to 4% of vanadium, 1% to 4% of niobium, 0.5% to 5% of tungsten, 0.1% to 1% of cerium and 1% to 3% of manganese, and the balance being nickel. According to the preparation method provided by the invention, the manufacturing technology is simple, atomization powder forming replaces mechanical ball milling powder forming, segregation is reduced during follow-up forming, toughness of the material is improved, and a high-strength Mo2NiB2-based metal ceramic material with a dense structure is obtained through HIP hot isostatic pressure sintering. The high-strength molybdenum nickel boron ternary boride material provided by the invention is scientific and reasonable in formula design, has high melting point, high hardness and high abrasion resistance and corrosion resistance, can be utilized as a high-temperature resistant material, corrosion-resistant material, abrasion-resistant material and superhard material, and is good in comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of molybdenum-nickel-boron ternary boride materials, and in particular relates to a high-strength molybdenum-nickel-boron ternary boride material and a preparation method thereof. Background technique [0002] With the continuous development of high technology, the requirements for material properties are getting higher and higher. Metal alloy materials have high strength, good toughness and thermal conductivity at high temperature, but poor oxidation resistance at high temperature, which limits their use at high temperature. Because ceramic materials have good high melting point, high hardness, high wear resistance and high corrosion resistance, their density is 3 / 5 of that of traditional hard alloys, and they are hard materials with great development prospects. Among them, ternary borides The cermet phase has high hardness, high fracture toughness, high wear resistance, good corrosion resistance, and a th...

Claims

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Application Information

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IPC IPC(8): C22C29/14C22C1/10B22F3/15
CPCB22F3/15B22F2998/10C22C1/1068C22C29/005C22C29/14B22F9/082B22F2003/248
Inventor 邓俊杰罗才元
Owner 广东博杰特新材料科技有限公司
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