Method for composite preparation of Ti alloy/TiAl alloy composite plate material by using laminated rolling-diffusion method

A technology of diffusion cladding and cladding sheet, which is applied in the direction of metal rolling, metal rolling, rolling mill control device, etc., can solve the problems of unobtainable size and thin thickness, etc.

Inactive Publication Date: 2007-08-08
HARBIN INST OF TECH
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the prior art cannot obtain titanium alloy/TiAl alloy composite plates with la

Method used

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  • Method for composite preparation of Ti alloy/TiAl alloy composite plate material by using laminated rolling-diffusion method

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specific Embodiment approach 1

[0005] Specific embodiment one: (referring to Fig. 1, Fig. 2, Fig. 3) the technical scheme of the present embodiment is realized according to the following steps: 1, prepare original material: original material is titanium foil (hereinafter referred to as A), titanium (or titanium Alloy) foil or plate (hereinafter referred to as B), aluminum foil (hereinafter referred to as C), the thickness of A is 0.02-0.3mm, the thickness of B is 0.31-3mm, and the thickness of C is 0.02-0.3mm; 2. Lamination: A Placed in a stack with C, at least one layer of B in the stack, B is either on the upper and lower surfaces of the stack, or placed in the middle of the stack; in the stack, the adjacent layer of B is C, and the outermost layer is A or B, A, B, and C are stacked with 3 or more layers; 3. Cover: the outside of the stack is covered with stainless steel, pure titanium or titanium alloy, and the stack is placed in a layer made of stainless steel, pure titanium or titanium. In the cubic co...

specific Embodiment approach 2

[0006] Specific embodiment two: (referring to Fig. 1, Fig. 4) the technical scheme of present embodiment is realized like this: prepare original material: original material is titanium foil (abbreviated A), titanium plate material (abbreviated B), aluminum foil (abbreviated C) . The thickness of A is 0.05mm, the thickness of B is 1mm, and the thickness of C is 0.05mm. Lamination: A and C are stacked, and A and C are 5 layers respectively. B is a layer, and B is placed on the lower surface of A and C stacks. In the laminate, the adjacent layer of B is C, and the upper surface of the outermost layer is A. The above structure is similar to the laminated structure shown in FIG. 1 . Sheath: Stainless steel sheath is used outside the laminate, the thickness of the sheath is 2mm. Put the laminated structure into a cubic container welded by stainless steel plates, vacuumize it to less than 0.2Pa, and then weld it tightly. Rolling: The overall material that has been wrapped is fir...

specific Embodiment approach 3

[0007] Specific embodiment three: (referring to Fig. 3, Fig. 5) the technical scheme of present embodiment is realized like this: prepare original material: original material is titanium foil (abbreviation A), titanium alloy (Ti-6Al-4V) sheet material (abbreviation B), aluminum foil (referred to as C). The thickness of A is 0.07mm, the thickness of B is 1.5mm, and the thickness of C is 0.07mm. Lamination: A and C are stacked, A and C are 8 layers and 7 layers respectively. B is 2 layers, one layer B is placed on the lower surface of A and C stacks, and the other layer is placed in the middle of A and C stacks. In the laminate, the adjacent layer of B is C, and the upper surface of the outermost layer is A. The above structure is similar to the stacked structure shown in FIG. 3 . Sheath: Pure titanium sheath is used outside the lamination, the thickness of the sheath is 2.5mm. Put the stack into a cubic container welded by pure titanium plates, vacuumize it to less than 0.1...

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Abstract

The invention discloses a making method of titanium alloy/TiAl composite board, which is characterized by the following: overlapping A (titanium foil) and C (aluminium foil); placing at least one layer B (titanium or titanium alloy foil, titanium or titanium alloy board) on the upper and lower surfaces of overlapped layer or among overlapping layer; setting adjacent layer C to B; adopting three layers or more of A or B as the most outer layer; jacketing; rolling under 20-750 deg.c and 750-1300 deg.c.

Description

technical field [0001] The invention relates to a method for preparing a titanium alloy / TiAl alloy composite plate. Background technique [0002] TiAl alloy (or TiAl intermetallic compound) has low density, high specific strength and specific elastic modulus, and can still maintain high enough strength and stiffness at high temperature, and it also has good creep resistance and oxidation resistance, etc. With outstanding features, it has broad application prospects in the fields of aerospace, aviation and automobiles. The service temperature of TiAl alloy can reach 700-900°C. TiAl alloy sheet is the most urgently needed material in the practical process of this material, but the shortcomings of TiAl alloy sheet, such as low room temperature plasticity and poor processability, seriously hinder the application of the sheet. The patent application number is 200510009906.0, the publication number is CN1672918A, the publication date is September 28, 2005, and the invention pate...

Claims

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Application Information

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IPC IPC(8): B21B3/00B21B1/38B21B37/74B21B37/00B21B47/00C21D9/46C21D11/00
Inventor 孔凡涛陈玉勇
Owner HARBIN INST OF TECH
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