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Preparation method of metallic/intermetallic compound laminar composite material

A technology of intermetallic compounds and layered composite materials, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of high material cost, low preparation efficiency, long reaction time, etc., and achieve high efficiency and process Ripening, reducing the effect of time

Active Publication Date: 2016-03-23
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Problems solved by technology

[0003] There are some disadvantages in the preparation of metal / intermetallic compound layered composite materials by hot-pressing reaction composite method. Metal foil is used as the original material, and the material cost is high; The reaction time is long and the preparation efficiency is low; the size of the prepared slab is limited by the size of the platform of the hot-pressing equipment, and large-sized sheets cannot be prepared; it is only suitable for the preparation of flat-plate structures, and the manufacture of complex curved surface structures cannot be realized. Greatly limit the rapid development and application of metal / intermetallic compound layered composites

Method used

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  • Preparation method of metallic/intermetallic compound laminar composite material

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Embodiment 1

[0031] This embodiment provides a method for preparing a metal / intermetallic compound layered composite material, the method comprising the following steps:

[0032] 1. Surface treatment: Use acetone to remove the grease on the surface of the plate, use a steel brush or abrasive belt to polish the surface of the plate, and activate the surface;

[0033] 2. Rolling composite: The 1mm-thick original plates are stacked together in the order of Ti-Al-Ti-Al-Ti-Al-Ti, and sealed in Q235 steel ladle by argon arc welding. Rolling is carried out at a rolling reduction of 50%.

[0034] 3. Annealing treatment: Anneal the rolled billet at 580°C for 0.5 hours to remove work hardening during rolling and improve the bonding quality of the internal interface of the clad plate.

[0035] 4. Sheath removal: use wire cutting to remove the sheath material, take out the composite board from the sheath, cut it from the middle, and repeat the above process (1)-(3) 2 times.

[0036] 5. In-situ react...

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Abstract

The invention relates to a preparation method of a metallic / intermetallic compound laminar composite material. The preparation method comprises the followings steps: performing surface treatment on selected boards, further carrying out roll cladding, annealing treatment, casing removing and in-situ reaction by combining the thermal creeping forming technology when necessary. The metallic / intermetallic compound laminar composite material prepared by adopting the preparation method has the following progresses: the cost of raw materials is relatively low, the technology is mature, the efficiency is relatively high, the consequent in-situ reaction time is shortened, and the metallic / intermetallic compound laminar composite material with a complex curved structure can be prepared.

Description

technical field [0001] The invention belongs to the technical field of layered composite materials, in particular to a preparation method of a metal / intermetallic compound layered composite material. Background technique [0002] Metal / intermetallic compound layered composite material is a material composed of metals and intermetallic compounds alternately laminated together through appropriate processes. Among them, the metal mainly includes Ti and Ni, and the intermetallic compound mainly includes Ti 3 Al, TiAl, TiAl 3 、Ni 3 Al and NiAl et al. Metal / intermetallic compound layered composite is not only a lightweight material, but also has good comprehensive properties, such as high strength, hardness, good toughness and crack growth resistance. Therefore, it is widely used in aviation, aerospace, weapons Equipment and other fields have broad application prospects. At present, the main preparation method of metal / intermetallic compound layered composites is the hot-press...

Claims

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Application Information

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IPC IPC(8): B21B47/00C22F1/18C22F1/04C22F1/10
CPCB21B47/00C22F1/04C22F1/10C22F1/183
Inventor 王耀奇侯红亮韩玉杰盖鹏涛
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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