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Preparation method of laminated composite material of titanium-aluminum/nickel-aluminum intermetallic compound

A technology of intermetallic compounds and layered composite materials, applied in the direction of metal layered products, chemical instruments and methods, lamination, etc., can solve the problems of no public information disclosure technology, etc., and achieve excellent oxidation resistance and high temperature corrosion resistance good, low density effect

Inactive Publication Date: 2017-08-18
CHINA ACAD OF LAUNCH VEHICLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no public information disclosing the corresponding technology

Method used

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Embodiment Construction

[0034] The technical solutions of the present invention will be further described in detail below through specific examples.

[0035] The preparation method of a titanium-aluminum-nickel-aluminum intermetallic compound layered composite material of the present invention comprises the following steps:

[0036] Step (1): Cut the surface-treated titanium foil, nickel foil and aluminum foil into metal sheets of a set shape (in this embodiment, a square of 500×500 mm) and size, and stack them alternately until the total number of layers is 7 to 350 layers (in this embodiment, 41 layers), forming a sandwich-like laminated structure, and wrapping the outermost side with pure titanium foil;

[0037] The surface treatment is to scrub with one of acetone and methanol, and then perform one of the following two treatments: pickling and alkali washing; when pickling, use HF aqueous solution with a volume concentration of 5-10% for pickling After 10-30s, wash with clean water and dry; when...

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Abstract

The invention belongs to the technical field of composite material preparation and particularly relates to a preparation method of a laminated composite material of a titanium-aluminum / nickel-aluminum intermetallic compound. The method comprises the following steps of (1) cutting a titanium foil, a nickel foil and an aluminum foil subjected to surface treatment into metal sheets with set shapes and sizes to form a sandwich laminated structure, wrapping the outermost side by using a pure titanium foil, putting a graphite mold into a vacuum hot press sintering device, applying pre-tightening pressure of 1-3MPa at a room temperature, keeping the pressure for 10-30min and controlling various foils in the sandwich laminated structure for mutual fit contact; (2) releasing the pressure applied to the sandwich laminated structure in the step (1); (3) heating the foils in the sandwich laminated structure to 900-1300 DEG C, simultaneously applying pressure of 10-30MPa and carrying out heat preservation for 0.1-2h; and (4) carrying out furnace cooling and demolding to obtain the laminated composite material of the titanium-aluminum / nickel-aluminum intermetallic compound.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a preparation method of a titanium-aluminum / nickel-aluminum intermetallic compound layered composite material. Background technique [0002] Composite materials can organically combine the performance advantages of two or more materials to obtain a variety of properties that a single material cannot have, so as to meet the mechanical or other physical performance requirements of various industries for service materials. Composite materials can be divided into layered composites, particle-reinforced composites, and fiber-reinforced composites. Layered composites have good fracture toughness due to the existence of more interfaces between layers. When the crack extends to At the interface, a deflection or bifurcation can occur, increasing the extension path. This advantage makes layered materials have certain application prospects in the future. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B38/16B32B15/01
CPCB32B37/06B32B15/017B32B37/1018B32B38/162B32B2307/306B32B2307/714B32B2605/08B32B2605/18
Inventor 逄锦程李东东韩露杨庆功李丽王影李阿妮谢国君
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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