CrCuV solid solution for heterogeneous interface bonding and preparation method and application thereof

Abstract

The invention discloses a CrCuV solid solution for heterogeneous interface bonding and a preparation method and application thereof. The CrCuV solid solution comprises the following components in percentage by weight: 33-42% of copper; 25-35% of vanadium; and the balance of chromium. A gradient material with the CrCuV solid solution as the transition layer is synthesized from the CrCuV solid solution by using a laser additive manufacturing or fusion welding means. The difference in thermal expansion coefficient, melting point, elastic modulus, etc. of the heterogeneous interface is effectivelyalleviated, the residual stress level at the heterogeneous interface during the additive manufacturing process can be reduced, the precipitation of hard and brittle phases is avoided, the manufacturing requirements of heterogeneous parts can be reached, and a high-strength bonding interface is created. The CrCuV solid solution used for the connection of heterogeneous materials can have high connection interface strength and hardness, and can be widely used in the bonding of heterogeneous parts such as steel-aluminum, steel-tungsten, or steel-copper.

Description

technical field

[0001] The invention relates to a CrCuV solid solution for bonding heterogeneous interfaces, and a preparation method and application of the CrCuV solid solution. Background technique

[0002] With the development of science and technology and the rapid advancement of industry, people have higher and higher requirements for materials. The performance of a single material can no longer meet the requirements of technological development. The composite application of multiple materials has become the trend of the times. The composite of different materials The application can not only achieve higher performance, but also save material cost.

[0003] However, dissimilar materials have many problems in joining due to their different physical properties. Taking the connection of steel-aluminum dissimilar metals as an example, due to the large difference in atomic radius between aluminum and iron, the difference in atomic valence and electronegativity, and the smal...

Examples

preparation example Construction

[0043] The present invention also provides a method for preparing the above-mentioned CrCuV solid solution for heterogeneous interface bonding, which specifically includes the following process steps:

[0044] (1) Ingredients:

[0045] Use metal vanadium, metal chromium, and metal copper as raw materials, and prepare according to the target composition;

[0046] (2) Melting:

[0047] Put the prepared metal vanadium, metal chromium and metal copper into the intermediate frequency induction furnace, and heat it to melt it. In this smelting step, a small amount of formulated metal vanadium, metal chromium, and metal copper ingredients are added into the medium frequency induction furnace for smelting first, and then the remaining ingredients are added into the molten alloy solution as supplementary materials. When feeding the feeding material, the temperature in the medium frequency induction furnace is controlled at 1500°C to 1550°C;

[0048] After the smelting is completed, ...

Embodiment 1

[0059] The ingredients are prepared according to the following proportions, in terms of weight percentage, including: copper 38%, vanadium 30%, chromium 32%.

[0060] Put the prepared metal vanadium, metal chromium, and metal copper into the intermediate frequency induction furnace, and heat it to melt it. The temperature in the intermediate frequency induction furnace is controlled at about 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0061] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then the particle size range of 100 is sieved by the sieving machine ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery CrCuV solid solution, and used as a material f...

Embodiment 2

[0077] The ingredients are prepared according to the following ratios, including: copper 43%, vanadium 35%, chromium 22%.

[0078] Add the prepared metal cobalt, metal chromium, metal nickel, and metal copper into the intermediate frequency induction furnace, and heat it to melt it. The temperature in the intermediate frequency induction furnace is controlled at about 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0079] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then the particle size range of 100 is sieved by the sieving machine ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery CrCuV solid solution, and used as a material for bonding heterogeneous...

technical field

[0001] The invention relates to a CrCuV solid solution for bonding heterogeneous interfaces, and a preparation method and application of the CrCuV solid solution. Background technique

[0002] With the development of science and technology and the rapid advancement of industry, people have higher and higher requirements for materials. The performance of a single material can no longer meet the requirements of technological development. The composite application of multiple materials has become the trend of the times. The composite of different materials The application can not only achieve higher performance, but also save material cost.

[0003] However, dissimilar materials have many problems in joining due to their different physical properties. Taking the connection of steel-aluminum dissimilar metals as an example, due to the large difference in atomic radius between aluminum and iron, the difference in atomic valence and electronegativity, and the smal...

Examples

preparation example Construction

[0043] The present invention also provides a method for preparing the above-mentioned CrCuV solid solution for heterogeneous interface bonding, which specifically includes the following process steps:

[0044] (1) Ingredients:

[0045] Use metal vanadium, metal chromium, and metal copper as raw materials, and prepare according to the target composition;

[0046] (2) Melting:

[0047] Put the prepared metal vanadium, metal chromium and metal copper into the intermediate frequency induction furnace, and heat it to melt it. In this smelting step, a small amount of formulated metal vanadium, metal chromium, and metal copper ingredients are added into the medium frequency induction furnace for smelting first, and then the remaining ingredients are added into the molten alloy solution as supplementary materials. When feeding the feeding material, the temperature in the medium frequency induction furnace is controlled at 1500°C to 1550°C;

[0048] After the smelting is completed, ...

Embodiment 1

[0059] The ingredients are prepared according to the following proportions, in terms of weight percentage, including: copper 38%, vanadium 30%, chromium 32%.

[0060] Put the prepared metal vanadium, metal chromium, and metal copper into the intermediate frequency induction furnace, and heat it to melt it. The temperature in the intermediate frequency induction furnace is controlled at about 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0061] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then the particle size range of 100 is sieved by the sieving machine ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery CrCuV solid solution, and used as a material f...

Embodiment 2

[0077] The ingredients are prepared according to the following ratios, including: copper 43%, vanadium 35%, chromium 22%.

[0078] Add the prepared metal cobalt, metal chromium, metal nickel, and metal copper into the intermediate frequency induction furnace, and heat it to melt it. The temperature in the intermediate frequency induction furnace is controlled at about 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0079] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then the particle size range of 100 is sieved by the sieving machine ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery CrCuV solid solution, and used as a material for bonding heterogeneous...

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