Method for preparing Ti-TiBw/Ti laminar composite material in diffusion welding mode

A layered composite material, diffusion welding technology, applied in the direction of welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problem that the flatness and uniformity of the layered titanium-based composite material layer are difficult to guarantee, and achieve Improves uniform plastic deformation ability, high work hardening rate, and achieves strong plasticity and toughness

Active Publication Date: 2014-01-22
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for preparing Ti-TiBw / Ti layered composite material by diffusion welding in order to solve the technical problem that the flatness and uniformity of the existing layered titanium-based composite material layer are difficult to guarantee

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  • Method for preparing Ti-TiBw/Ti laminar composite material in diffusion welding mode
  • Method for preparing Ti-TiBw/Ti laminar composite material in diffusion welding mode
  • Method for preparing Ti-TiBw/Ti laminar composite material in diffusion welding mode

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specific Embodiment approach 1

[0015] Specific embodiment one: the method for preparing Ti-TiBw / Ti layered composite material by diffusion welding of the present embodiment is carried out according to the following steps:

[0016] 1. Weigh raw materials: Weigh Ti foil, spherical Ti powder and reinforcement material; the mass ratio of the Ti foil to spherical Ti powder is 1: (1-3), and the Ti foil and reinforcement The mass ratio of the bulk material is 100: (3-8), and the reinforcing body material is a single substance powder or a compound powder that can react with Ti in situ to form particles and whiskers; the said reinforcing material can react with Ti in situ The particle size of the elemental powder or compound powder that generates particles and whiskers is 3 μm to 8 μm; the thickness of the Ti foil is 50 μm to 500 μm; the particle size of the spherical Ti powder is 80 μm to 200 μm;

[0017] 2. Preparation of TiBw / Ti composite material: The spherical Ti powder and reinforcement material weighed in ste...

specific Embodiment approach 2

[0021]Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the elemental powder or compound powder that can react with Ti in situ to form particles and whiskers described in step 1 is TiB 2 powder, C powder, B 4 C powder or BN powder. Other steps and parameters are the same as those in Embodiment 1.

[0022] TiB in this embodiment 2 powder, C powder, B 4 C powder and BN powder are elemental powders or compound powders that can react with Ti in situ to form particles and whiskers.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass ratio of Ti foil to spherical Ti powder in step 1 is 1:2. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention relates to a method for preparing a Ti-TiBw / Ti composite material of a laminar structure, in particular to a method for preparing the Ti-TiBw / Ti laminar composite material in a diffusion welding mode. The method for preparing the Ti-TiBw / Ti laminar composite material in the diffusion welding mode solves the technical problem that the flatness and uniformity of an exiting laminar titanium matrix composite material layer are difficult to guarantee, and comprises the steps of weighing raw materials, preparing Ti-TiBw / Ti composite material, preparing Ti-TiBw / Ti composite material foils, and preparing the Ti-TiBw / Ti laminar composite material. The Ti-TiBw / Ti laminar composite material prepared through the method has good flatness and uniformity and is high in compactness, the compactness can reach 99.3%, the high plasticity and strengthening-toughening performance of the laminar material can be controlled by adjusting the thickness of a Ti board, the thickness of a Ti-TiBw / Ti composite material board, the layer thickness ratio between the Ti board and the Ti-TiBw / Ti composite material board, and the volume fraction of an enhanceosome, and breaking tenacity of the Ti-TiBw / Ti laminar composite material is largely improved.

Description

technical field [0001] The invention relates to a preparation method of a Ti-TiBw / Ti composite material with a layered structure. Background technique [0002] Ti-based composites are lightweight and high-strength structural materials with great development potential in the 21st century, but the addition of reinforcements often sacrifices the plasticity and toughness of the material. The layered structure material plays a very significant role in exerting the strength, toughness and strong plasticity of the material. This is because the general layered structure includes a brittle phase layer and a plastic phase layer. The brittle phase layer plays the role of strengthening and delaying local necking, while the plastic phase layer absorbs a large amount of deformation work during the plastic deformation process and plays a role The role of crack passivation and crack deflection. [0003] At present, the traditional processes for preparing layered titanium matrix composites...

Claims

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Application Information

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IPC IPC(8): B23K20/24B23K20/233
CPCB23K20/001B23K20/233B23K20/24B23K2101/18B23K2103/14C22C1/058C22C14/00
Inventor 耿林刘宝玺黄陆军崔喜平
Owner HARBIN INST OF TECH
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